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LondheShubham153 wants to merge 46 commits intoDevMadhup:DevOpsfrom
LondheShubham153:DevOps
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K8s#1
LondheShubham153 wants to merge 46 commits intoDevMadhup:DevOpsfrom
LondheShubham153:DevOps

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@LondheShubham153 LondheShubham153 commented Nov 27, 2024

Summary by CodeRabbit

  • New Features

    • Introduced new environment variables for user identification and Docker image specification.
    • Expanded README documentation with comprehensive deployment instructions for AWS EKS and DevSecOps practices.
    • Added a guide for setting up a Continuous Integration and Continuous Deployment (CICD) workflow with Jenkins and Docker.
    • Implemented new Kubernetes resources including Deployments, Services, ConfigMaps, Secrets, and Ingress for the banking application.
    • Introduced Horizontal Pod Autoscaler (HPA) for dynamic scaling based on CPU usage.
    • Added a ClusterIssuer for automated SSL certificate management with Let's Encrypt.
    • Created a new namespace for the banking application.
  • Bug Fixes

    • Updated repository URLs in Jenkins pipeline configuration.
  • Chores

    • Removed outdated README files and restructured documentation for clarity and completeness.

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coderabbitai bot commented Nov 27, 2024

Pull Request Analysis

Walkthrough

This pull request introduces comprehensive updates to a SpringBoot Bank Application's infrastructure and deployment configurations. The changes span multiple files across various directories, focusing on Kubernetes deployment, Helm chart creation, CI/CD pipeline configuration, and documentation. The primary goal appears to be enhancing the application's deployment flexibility, introducing GitOps practices, and providing detailed setup instructions for AWS EKS and Kubernetes environments.

Changes

File/Directory Change Summary
.env Added environment variables DUSER and IMAGE for Docker configuration
README.md Expanded documentation with tech stack, pre-requisites, and deployment steps
cicd.md Introduced a guide for setting up a CICD workflow using Jenkins and Docker
docker-compose.yml Updated to use named volumes and environment variable-based image references
Jenkinsfile Updated repository URLs and project name references
helm/ Added complete Helm chart for bankapp with comprehensive Kubernetes resource definitions
kubernetes/ Introduced Kubernetes manifests for deploying the application with advanced configurations
nginx.md Added a guide for configuring Nginx as a proxy server with SSL
README-K8S.md Expanded to provide comprehensive instructions for deploying a Bank Application on Kubernetes using AWS EKS
k8s/README.md Removed entire content of the file
vars/ Added Jenkins shared library functions for various deployment stages

Sequence Diagram

sequenceDiagram
    participant Dev as Developer
    participant Jenkins as CI/CD Pipeline
    participant Docker as Docker Registry
    participant K8s as Kubernetes Cluster
    
    Dev->>Jenkins: Push code changes
    Jenkins->>Jenkins: Run tests
    Jenkins->>Docker: Build and push image
    Jenkins->>K8s: Deploy application
    K8s->>K8s: Create resources
    K8s-->>Dev: Application deployed
Loading

Poem

🐰 Hopping through code with glee,
Kubernetes blooms like a tree!
Jenkins builds, Helm charts unfurl,
DevOps magic gives a twirl!
Deployment's dance, smooth and light,
Our bankapp takes its joyful flight! 🚀


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Actionable comments posted: 16

🧹 Outside diff range and nitpick comments (14)
vars/greet.groovy (1)

1-3: Add documentation and input validation.

While the implementation is secure with input sanitization, consider these improvements:

  1. Add documentation to explain the method's purpose and parameter
  2. Add input validation for null and empty strings
+#!/usr/bin/env groovy
+
+/**
+ * Generates a sanitized greeting message
+ * @param name The name to include in the greeting (required)
+ * @return void
+ */
 def call(String name){
+  if (name == null || name.trim().isEmpty()) {
+    error "Name parameter cannot be null or empty"
+  }
   echo "hello ${name.replaceAll('[^a-zA-Z0-9\\s-]', '')}"
 }
vars/pushImage.groovy (1)

1-7: Consider adding documentation and parameter validation

Add documentation to explain the purpose of the script and parameter requirements.

Add this documentation at the start of the file:

/**
 * Pushes a Docker image to Docker Hub.
 *
 * @param imageName The name of the Docker image to push (without registry prefix)
 * @throws Exception if the image push fails
 * @example
 * // In Jenkinsfile
 * pushImage('myapp:1.0.0')
 */
vars/buildImage.groovy (2)

6-11: Enhance build functionality and error handling

The current implementation lacks several important features for a production-grade Docker build pipeline:

  1. No support for build arguments
  2. No tag versioning strategy
  3. No timeout for build operations
  4. No build cache management
  5. No multi-stage build support

Consider extending the function signature and implementation:

def call(Map config = [:]) {
    def imageName = config.imageName
    def dockerfile = config.dockerfile ?: 'Dockerfile'
    def buildArgs = config.buildArgs ?: [:]
    def timeout = config.timeout ?: 3600
    def useCache = config.useCache ?: false
    
    // ... validation code ...
    
    timeout(time: timeout, unit: 'SECONDS') {
        try {
            sh 'docker info > /dev/null 2>&1'
            
            def buildArgsStr = buildArgs.collect { k, v -> "--build-arg '${k}=${v}'" }.join(' ')
            def cacheOpt = useCache ? '' : '--no-cache'
            
            sh """
                docker build ${cacheOpt} \
                    --security-opt no-new-privileges \
                    ${buildArgsStr} \
                    -f '${dockerfile.replaceAll("'", "'\\''")}' \
                    -t '${imageName.replaceAll("'", "'\\''")}' .
            """
        } catch (Exception e) {
            error "Docker build failed: ${e.message}"
        }
    }
}

1-12: Add documentation for the function

The function lacks documentation about its usage, parameters, and examples.

Add documentation at the start of the file:

/**
 * Builds a Docker image with the specified name
 *
 * @param imageName The name to tag the built image with
 * @throws Exception if Docker daemon is not accessible or build fails
 * @example
 * ```groovy
 * buildImage 'myapp:1.0.0'
 * ```
 */
docker-compose.yml (2)

44-46: Fix formatting issues

There are minor formatting issues in the volumes section.

Apply this diff to fix indentation and add newline:

 volumes:
-    bankapp-volume:
+  bankapp-volume:
+
🧰 Tools
🪛 yamllint (1.35.1)

[warning] 46-46: wrong indentation: expected 2 but found 4

(indentation)


[error] 46-46: no new line character at the end of file

(new-line-at-end-of-file)


Line range hint 1-46: Consider enhancing security configurations

While the basic setup is good, consider these security improvements:

  1. Add resource limits to prevent DoS
  2. Use non-root MySQL user
  3. Consider using Docker secrets for sensitive data

Example additions:

services:
  mysql:
    deploy:
      resources:
        limits:
          cpus: '1'
          memory: 1G
    security_opt:
      - no-new-privileges:true

  mainapp:
    deploy:
      resources:
        limits:
          cpus: '0.5'
          memory: 512M
    security_opt:
      - no-new-privileges:true
vars/codeCheckout.groovy (3)

1-1: Add method documentation and fix parameter naming consistency

The method would benefit from documentation explaining its purpose and parameters. Also, there's an inconsistency between the parameter name credId and its usage as credentialsId.

+/**
+ * Performs a Git checkout operation with timeout and validation
+ * @param branch The Git branch to checkout
+ * @param url The Git repository URL
+ * @param credentialsId The Jenkins credentials ID for Git authentication
+ */
-def call(String branch, String url, String credId) {
+def call(String branch, String url, String credentialsId) {

2-5: Enhance branch name validation

The current regex might reject some valid Git branch names. Consider using a more permissive pattern and providing a more descriptive error message.

-    if (!branch.matches('^[\\w.-]+$')) {
-        error("Invalid branch name format")
+    if (!branch.matches('^[\\w./][\\w./-]*$')) {
+        error("Invalid branch name format. Branch names must start with alphanumeric characters and can contain dots, hyphens, and forward slashes")

27-33: Enhance error handling with specific exceptions

The current error handling catches all exceptions, which might mask specific Git-related issues. Consider catching specific exceptions and providing more detailed troubleshooting information.

-     } catch (Exception e) {
+     } catch (hudson.plugins.git.GitException e) {
         def errorMsg = "Git checkout failed:\n" +
                       "Branch: ${branch}\n" +
                       "URL: ${url}\n" +
-                      "Error: ${e.message}"
+                      "Error: ${e.message}\n" +
+                      "Troubleshooting:\n" +
+                      "1. Verify credentials access\n" +
+                      "2. Check if repository exists\n" +
+                      "3. Ensure branch exists"
         error(errorMsg)
+     } catch (Exception e) {
+         error("Unexpected error during Git checkout: ${e.message}")
nginx.md (2)

120-127: Enhance SSL configuration with additional security measures

Consider adding these important SSL security configurations:

  1. OCSP stapling
  2. Strong DH parameters
  3. Additional secure cipher configurations

Add these configurations to the SSL parameters:

    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_prefer_server_ciphers on;
    ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 10m;
+   # OCSP Stapling
+   ssl_stapling on;
+   ssl_stapling_verify on;
+   resolver 8.8.8.8 8.8.4.4 valid=300s;
+   resolver_timeout 5s;
+   # Strong DH parameters
+   ssl_dhparam /etc/nginx/dhparam.pem;

Also, add instructions to generate strong DH parameters:

sudo openssl dhparam -out /etc/nginx/dhparam.pem 2048

135-139: Enhance certificate renewal automation

The current renewal configuration could be improved with logging and post-renewal actions:

  1. Add logging for troubleshooting
  2. Reload Nginx after successful renewal
  3. Add notification on failure

Replace the current crontab entry with a more robust renewal script:

-echo "0 0 1 * * certbot renew --quiet" | sudo tee -a /etc/crontab
+# Create renewal script
+sudo tee /usr/local/bin/renew-certs.sh << 'EOF'
+#!/bin/bash
+
+LOG_FILE="/var/log/certbot/renewal.log"
+mkdir -p "$(dirname "$LOG_FILE")"
+
+certbot renew --quiet >> "$LOG_FILE" 2>&1
+RESULT=$?
+
+if [ $RESULT -eq 0 ]; then
+    systemctl reload nginx
+    echo "$(date): Certificate renewal successful" >> "$LOG_FILE"
+else
+    echo "$(date): Certificate renewal failed" >> "$LOG_FILE"
+    # Add notification command here (e.g., email, Slack)
+fi
+EOF
+
+# Make script executable
+sudo chmod +x /usr/local/bin/renew-certs.sh
+
+# Add to crontab
+echo "0 0 1 * * /usr/local/bin/renew-certs.sh" | sudo tee -a /etc/crontab
cicd.md (2)

21-21: Fix markdown formatting issues

The document has several formatting inconsistencies:

  1. Inconsistent list indentation at lines 21 and 52
  2. Trailing punctuation in headings
  3. Headings not starting at the beginning of the line

Apply consistent indentation and remove trailing punctuation from headings:

- 2. #### Jenkins Configuration.
+ 2. #### Jenkins Configuration

- 3. #### Create a Pipeline, Execute Job and Configure Webhook
+ 3. #### Create a Pipeline, Execute Job and Configure Webhook

Also applies to: 52-52

🧰 Tools
🪛 Markdownlint (0.35.0)

21-21: Expected: 1; Actual: 0
Inconsistent indentation for list items at the same level

(MD005, list-indent)


21-21: Punctuation: '.'
Trailing punctuation in heading

(MD026, no-trailing-punctuation)


118-118: Add missing operational sections

Consider adding these important sections to complete the guide:

  1. Troubleshooting common issues
  2. Maintenance procedures
  3. Backup and recovery
  4. Monitoring and logging
  5. Performance tuning

Would you like me to provide templates for these additional sections?

vars/deploy.groovy (1)

41-44: Consider catching more specific exceptions

Catching the general Exception may mask unexpected errors. It might be better to catch specific exceptions to handle known error conditions appropriately.

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Reviewing files that changed from the base of the PR and between 1018017 and 5ce21df.

⛔ Files ignored due to path filters (6)
  • images/agent.png is excluded by !**/*.png
  • images/credentials.png is excluded by !**/*.png
  • images/flow.png is excluded by !**/*.png
  • images/login_https.png is excluded by !**/*.png
  • images/pipeline.png is excluded by !**/*.png
  • images/shared_library.png is excluded by !**/*.png
📒 Files selected for processing (10)
  • .env (1 hunks)
  • README.md (1 hunks)
  • cicd.md (1 hunks)
  • docker-compose.yml (3 hunks)
  • nginx.md (1 hunks)
  • vars/buildImage.groovy (1 hunks)
  • vars/codeCheckout.groovy (1 hunks)
  • vars/deploy.groovy (1 hunks)
  • vars/greet.groovy (1 hunks)
  • vars/pushImage.groovy (1 hunks)
✅ Files skipped from review due to trivial changes (1)
  • .env
🧰 Additional context used
🪛 Markdownlint (0.35.0)
README.md

96-96: Expected: h2; Actual: h4
Heading levels should only increment by one level at a time

(MD001, heading-increment)

cicd.md

21-21: Expected: 1; Actual: 0
Inconsistent indentation for list items at the same level

(MD005, list-indent)


52-52: Expected: 1; Actual: 0
Inconsistent indentation for list items at the same level

(MD005, list-indent)


9-9: null
Headings must start at the beginning of the line

(MD023, heading-start-left)


21-21: Punctuation: '.'
Trailing punctuation in heading

(MD026, no-trailing-punctuation)

nginx.md

1-1: Punctuation: '.'
Trailing punctuation in heading

(MD026, no-trailing-punctuation)


7-7: Punctuation: '.'
Trailing punctuation in heading

(MD026, no-trailing-punctuation)

🪛 LanguageTool
cicd.md

[grammar] ~94-~94: The noun “keynotes” is spelled as one word.
Context: ... the Jenkins job dashboard. - Key Notes - Webhooks vs Polling:...

(NOTE_COMPOUNDS)

🪛 yamllint (1.35.1)
docker-compose.yml

[warning] 46-46: wrong indentation: expected 2 but found 4

(indentation)


[error] 46-46: no new line character at the end of file

(new-line-at-end-of-file)

🔇 Additional comments (10)
vars/greet.groovy (1)

2-2: Good use of input sanitization!

The regex pattern [^a-zA-Z0-9\\s-] effectively removes potentially harmful characters while preserving alphanumeric characters, spaces, and hyphens. This is a good security practice for Jenkins pipeline scripts.

vars/buildImage.groovy (1)

1-12: Verify Docker setup in Jenkins environment

Since this is part of a Jenkins pipeline, we should verify the Docker setup in the Jenkins environment.

✅ Verification successful

Docker setup in Jenkins environment appears properly configured

The verification of the Docker setup shows a well-structured environment:

  • The repository has a proper multi-stage Dockerfile and docker-compose.yml with health checks
  • Jenkins pipelines (both CI and CD) are properly configured to handle Docker operations:
    • Docker build and push operations are handled through shared library functions
    • Docker daemon checks are implemented in the buildImage.groovy script
    • Docker credentials are properly managed using Jenkins credentials
    • Docker operations are executed with proper error handling and validation

The buildImage.groovy implementation follows security best practices by:

  • Validating image names before execution
  • Checking Docker daemon accessibility
  • Using proper error handling for Docker operations
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check for Dockerfile presence and Jenkins Docker setup

# Check if Dockerfile exists in repository
fd Dockerfile

# Check for common Docker-related files
fd 'docker-compose.yml|.dockerignore'

# Look for Jenkins Docker configuration
fd 'jenkins|config.xml|docker' -t f | rg -l 'docker'

# Check for Docker socket mount patterns in compose files
fd 'docker-compose' -t f -x rg '/var/run/docker.sock'

Length of output: 198


Script:

#!/bin/bash
# Let's examine the Dockerfile and docker-compose.yml content
echo "=== Dockerfile contents ==="
cat Dockerfile

echo -e "\n=== docker-compose.yml contents ==="
cat docker-compose.yml

# Let's also check for any Jenkins pipeline configurations
echo -e "\n=== Searching for Jenkins pipeline configurations ==="
fd 'Jenkinsfile|.*jenkins.*' -t f

# Check for any other files that might contain Docker configuration
echo -e "\n=== Files containing Docker configuration ==="
rg -l 'docker|Docker' --type-not binary

Length of output: 2591


Script:

#!/bin/bash
# Let's examine the Jenkins pipeline files to understand the Docker setup
echo "=== GitOps/Jenkinsfile contents ==="
cat GitOps/Jenkinsfile

echo -e "\n=== Root Jenkinsfile contents ==="
cat Jenkinsfile

# Let's also check the vars directory for other related pipeline scripts
echo -e "\n=== Related pipeline scripts in vars directory ==="
fd . vars/ -t f -x cat {}

Length of output: 11681

docker-compose.yml (1)

10-10: Verify data migration plan for MySQL volume change

The switch from a bind mount (./mysql-data) to a named volume (bankapp-volume) is a good practice for better portability and management. However, ensure you have a plan to migrate existing data.

Consider these steps for data migration:

  1. Backup existing data from ./mysql-data
  2. Create the new volume: docker volume create bankapp-volume
  3. Restore data to the new volume

Would you like assistance in creating a data migration script?

vars/codeCheckout.groovy (1)

1-36: Verify for duplicate implementations

Let's ensure there aren't similar Git checkout implementations in the codebase to avoid duplication.

✅ Verification successful

Let me gather more information to ensure there are no similar implementations with different method signatures or in different locations.


Let me check the content of the Jenkinsfiles to ensure they're using this shared library function and not implementing their own checkout logic.


No duplicate Git checkout implementations found

The codebase shows consistent usage of the codeCheckout shared library function. Both Jenkinsfiles properly utilize this function through code_checkout() calls, and there are no duplicate or alternative Git checkout implementations. The implementation is centralized in the shared library as intended.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for similar Git checkout implementations
rg -l 'git\(' vars/
ast-grep --pattern 'def call($_, $_, $_) { $$$ git($$$) $$$ }'

Length of output: 111


Script:

#!/bin/bash
# Search for any git checkout related implementations
rg -g '!*.md' -l 'checkout|git\(' .
# Show content of any files with git operations
rg -g '!*.md' -A 5 -B 5 'git\(' .

Length of output: 763


Script:

#!/bin/bash
# Show content of Jenkinsfiles
cat ./Jenkinsfile
cat ./GitOps/Jenkinsfile

Length of output: 5402

nginx.md (1)

1-1: Documentation formatting and structure improvements needed

  1. Remove the trailing period from the heading for consistency with Markdown standards
  2. Verify that the referenced image exists at the specified path: images/login_https.png

Also applies to: 5-5

🧰 Tools
🪛 Markdownlint (0.35.0)

1-1: Punctuation: '.'
Trailing punctuation in heading

(MD026, no-trailing-punctuation)

cicd.md (1)

1-6: Enhance the workflow overview section

The workflow description could benefit from additional details:

  1. Prerequisites (required tools, permissions)
  2. Version requirements for Docker, Jenkins
  3. Target environment specifications

Let's verify if the referenced image exists:

vars/deploy.groovy (4)

4-4: Environment validation command is appropriate

The use of docker compose config -q ensures that the Docker Compose configuration is valid.


7-7: Graceful shutdown command is appropriate

The command docker compose down --timeout 30 gracefully stops all running containers with a 30-second timeout.


10-15: Cleanup verification logic is correct

The script correctly verifies that all containers have been stopped after the shutdown.


18-18: Services are started correctly

The command docker compose up -d starts all services in detached mode.

Comment on lines +1 to +3
def call(String name){
echo "hello ${name.replaceAll('[^a-zA-Z0-9\\s-]', '')}"
}
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💡 Codebase verification

Shared library is properly configured but greet function is unused

The verification reveals:

  • Both Jenkinsfiles properly load the shared library using @Library('Shared') _
  • The vars directory contains multiple shared library functions
  • The greet function exists in vars/greet.groovy but is not used in any of the Jenkinsfiles
  • The Jenkinsfiles use other shared library functions like code_checkout, trivy_scan, docker_build, etc.
🔗 Analysis chain

Verify the shared library configuration.

Since this is part of a CI/CD setup, let's verify the proper configuration and usage of this shared library.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Check for Jenkinsfile and library usage
# Expected: Find Jenkinsfile that loads and uses this shared library

# Look for Jenkinsfile
echo "Searching for Jenkinsfile..."
fd Jenkinsfile

# Look for library reference in Jenkinsfile or similar files
echo "Checking for library usage..."
rg -l "@Library|library" --type groovy

# Look for greet step usage
echo "Checking for greet step usage..."
rg "greet\s*\(" --type groovy

Length of output: 331


Script:

#!/bin/bash
# Let's examine the content of both Jenkinsfiles to check library configuration and usage
echo "=== Content of GitOps/Jenkinsfile ==="
cat "GitOps/Jenkinsfile"

echo -e "\n=== Content of Jenkinsfile ==="
cat "Jenkinsfile"

# Let's also check for any vars directory structure which is typical for Jenkins shared libraries
echo -e "\n=== Checking vars directory structure ==="
fd . vars --type f

Length of output: 6048

@@ -0,0 +1,7 @@
def call(String imageName){
withCredentials([usernamePassword(credentialsId: "dockerhub", passwordVariable: 'DOCKER_PASSWD', usernameVariable: 'DOCKER_USER')]) {
sh "docker tag ${imageName} ${DOCKER_USER}/springboot-application"
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⚠️ Potential issue

Inconsistency in image tagging

There's a mismatch between the tagging and pushing operations. Line 3 tags with a hardcoded name "springboot-application" but line 5 pushes with the original imageName.

Apply this fix:

-    sh "docker tag ${imageName} ${DOCKER_USER}/springboot-application"
+    sh "docker tag ${imageName} ${DOCKER_USER}/${imageName}"
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
sh "docker tag ${imageName} ${DOCKER_USER}/springboot-application"
sh "docker tag ${imageName} ${DOCKER_USER}/${imageName}"

def call(String imageName){
withCredentials([usernamePassword(credentialsId: "dockerhub", passwordVariable: 'DOCKER_PASSWD', usernameVariable: 'DOCKER_USER')]) {
sh "docker tag ${imageName} ${DOCKER_USER}/springboot-application"
sh "docker login -u${DOCKER_USER} -p${DOCKER_PASSWD}"
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⚠️ Potential issue

Security: Avoid exposing credentials in command arguments

Using credentials directly in command arguments can expose them in process lists and logs. Use docker login --password-stdin instead.

Apply this fix:

-    sh "docker login -u${DOCKER_USER} -p${DOCKER_PASSWD}"
+    sh """
+        echo "${DOCKER_PASSWD}" | docker login -u "${DOCKER_USER}" --password-stdin
+    """
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
sh "docker login -u${DOCKER_USER} -p${DOCKER_PASSWD}"
sh """
echo "${DOCKER_PASSWD}" | docker login -u "${DOCKER_USER}" --password-stdin
"""

@@ -0,0 +1,7 @@
def call(String imageName){
withCredentials([usernamePassword(credentialsId: "dockerhub", passwordVariable: 'DOCKER_PASSWD', usernameVariable: 'DOCKER_USER')]) {
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💡 Codebase verification

Potential credential ID inconsistency detected

The codebase contains two different credential IDs for Docker Hub authentication:

  • vars/pushImage.groovy uses credential ID "dockerhub"
  • vars/docker_push.groovy uses credential ID "docker"

This inconsistency needs to be resolved to ensure proper functionality:

  • Either update pushImage.groovy to use "docker" as the credentialsId
  • Or update docker_push.groovy to use "dockerhub" as the credentialsId
  • Ensure the chosen credential ID matches what's configured in Jenkins
🔗 Analysis chain

Verify Jenkins credentials configuration

Ensure that the "dockerhub" credentials ID exists in Jenkins and has the correct permissions.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Check for references to the dockerhub credentials ID

# Search for dockerhub credentials references
rg -l "dockerhub.*credentialsId" 

# Search for Jenkins credentials configuration files
fd -g "*credentials*.{xml,yaml,yml,json}"

Length of output: 78


Script:

#!/bin/bash
# Let's broaden the search to find any references to dockerhub credentials
rg -i "dockerhub" -A 2 -B 2

# Also search for general credential usage patterns in Groovy files
fd -e groovy --exec rg -l "withCredentials.*usernamePassword"

# Look for Jenkins pipeline or configuration files
fd -e groovy -e Jenkinsfile

Length of output: 2492

Comment on lines +1 to +7
def call(String imageName){
withCredentials([usernamePassword(credentialsId: "dockerhub", passwordVariable: 'DOCKER_PASSWD', usernameVariable: 'DOCKER_USER')]) {
sh "docker tag ${imageName} ${DOCKER_USER}/springboot-application"
sh "docker login -u${DOCKER_USER} -p${DOCKER_PASSWD}"
sh "docker push ${DOCKER_USER}/${imageName}"
}
}
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🛠️ Refactor suggestion

Add error handling and input validation

The script lacks error handling and input validation. Consider:

  1. Validating the imageName parameter
  2. Adding try-catch blocks
  3. Checking command execution status

Here's a suggested refactor:

 def call(String imageName){
+    // Input validation
+    if (!imageName?.trim()) {
+        error "Image name cannot be empty"
+    }
+    
+    try {
         withCredentials([usernamePassword(credentialsId: "dockerhub", passwordVariable: 'DOCKER_PASSWD', usernameVariable: 'DOCKER_USER')]) {
-            sh "docker tag ${imageName} ${DOCKER_USER}/springboot-application"
-            sh "docker login -u${DOCKER_USER} -p${DOCKER_PASSWD}"
-            sh "docker push ${DOCKER_USER}/${imageName}"
+            // Tag the image
+            sh """
+                set -e
+                docker tag "${imageName}" "${DOCKER_USER}/${imageName}"
+            """
+            
+            // Login to Docker Hub
+            sh """
+                set -e
+                echo "${DOCKER_PASSWD}" | docker login -u "${DOCKER_USER}" --password-stdin
+            """
+            
+            // Push the image
+            sh """
+                set -e
+                docker push "${DOCKER_USER}/${imageName}"
+                docker logout
+            """
         }
+    } catch (Exception e) {
+        error "Failed to push image: ${e.getMessage()}"
+    }
 }
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
def call(String imageName){
withCredentials([usernamePassword(credentialsId: "dockerhub", passwordVariable: 'DOCKER_PASSWD', usernameVariable: 'DOCKER_USER')]) {
sh "docker tag ${imageName} ${DOCKER_USER}/springboot-application"
sh "docker login -u${DOCKER_USER} -p${DOCKER_PASSWD}"
sh "docker push ${DOCKER_USER}/${imageName}"
}
}
def call(String imageName){
// Input validation
if (!imageName?.trim()) {
error "Image name cannot be empty"
}
try {
withCredentials([usernamePassword(credentialsId: "dockerhub", passwordVariable: 'DOCKER_PASSWD', usernameVariable: 'DOCKER_USER')]) {
// Tag the image
sh """
set -e
docker tag "${imageName}" "${DOCKER_USER}/${imageName}"
"""
// Login to Docker Hub
sh """
set -e
echo "${DOCKER_PASSWD}" | docker login -u "${DOCKER_USER}" --password-stdin
"""
// Push the image
sh """
set -e
docker push "${DOCKER_USER}/${imageName}"
docker logout
"""
}
} catch (Exception e) {
error "Failed to push image: ${e.getMessage()}"
}
}

Comment on lines +29 to +75
server {
listen 80;
server_name bank.joakim.online;

# Security headers
add_header X-Content-Type-Options nosniff;
add_header X-Frame-Options "SAMEORIGIN";
add_header X-XSS-Protection "1; mode=block";
add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;

# Buffer size optimizations
client_body_buffer_size 10K;
client_header_buffer_size 1k;
client_max_body_size 8m;

# Timeouts
client_body_timeout 12;
client_header_timeout 12;

# Rate limiting
limit_req_zone $binary_remote_addr zone=one:10m rate=1r/s;

location / {
proxy_pass http://localhost:8080;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;

# Apply rate limiting
limit_req zone=one burst=5 nodelay;

# Error handling
proxy_intercept_errors on;
error_page 500 502 503 504 /50x.html;
}

location ~ /\. {
deny all;
}

# Error page
location = /50x.html {
root /usr/share/nginx/html;
internal;
}
}
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🛠️ Refactor suggestion

Consider enhancing security headers and rate limiting configuration

The server configuration could be improved in several areas:

  1. Add Content Security Policy (CSP) header
  2. The rate limit of 1r/s might be too restrictive for production use
  3. Consider adding proxy_http_version 1.1 for better performance

Apply these improvements to the server block:

    # Security headers
    add_header X-Content-Type-Options nosniff;
    add_header X-Frame-Options "SAMEORIGIN";
    add_header X-XSS-Protection "1; mode=block";
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
+   add_header Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-inline';" always;

    # Rate limiting
-   limit_req_zone $binary_remote_addr zone=one:10m rate=1r/s;
+   limit_req_zone $binary_remote_addr zone=one:10m rate=10r/s;

    location / {
        proxy_pass http://localhost:8080;
+       proxy_http_version 1.1;
        proxy_set_header Host $host;
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
server {
listen 80;
server_name bank.joakim.online;
# Security headers
add_header X-Content-Type-Options nosniff;
add_header X-Frame-Options "SAMEORIGIN";
add_header X-XSS-Protection "1; mode=block";
add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
# Buffer size optimizations
client_body_buffer_size 10K;
client_header_buffer_size 1k;
client_max_body_size 8m;
# Timeouts
client_body_timeout 12;
client_header_timeout 12;
# Rate limiting
limit_req_zone $binary_remote_addr zone=one:10m rate=1r/s;
location / {
proxy_pass http://localhost:8080;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
# Apply rate limiting
limit_req zone=one burst=5 nodelay;
# Error handling
proxy_intercept_errors on;
error_page 500 502 503 504 /50x.html;
}
location ~ /\. {
deny all;
}
# Error page
location = /50x.html {
root /usr/share/nginx/html;
internal;
}
}
server {
listen 80;
server_name bank.joakim.online;
# Security headers
add_header X-Content-Type-Options nosniff;
add_header X-Frame-Options "SAMEORIGIN";
add_header X-XSS-Protection "1; mode=block";
add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
add_header Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-inline';" always;
# Buffer size optimizations
client_body_buffer_size 10K;
client_header_buffer_size 1k;
client_max_body_size 8m;
# Timeouts
client_body_timeout 12;
client_header_timeout 12;
# Rate limiting
limit_req_zone $binary_remote_addr zone=one:10m rate=10r/s;
location / {
proxy_pass http://localhost:8080;
proxy_http_version 1.1;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
# Apply rate limiting
limit_req zone=one burst=5 nodelay;
# Error handling
proxy_intercept_errors on;
error_page 500 502 503 504 /50x.html;
}
location ~ /\. {
deny all;
}
# Error page
location = /50x.html {
root /usr/share/nginx/html;
internal;
}
}

Comment on lines +11 to +18
http://<Instance_IP>:8080
# Development environment only
http://<Instance_IP>:8080

# Production environment (recommended)
# Access through reverse proxy with HTTPS
https://<your-domain>/jenkins
```
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⚠️ Potential issue

Remove duplicate URL and enhance production setup guidance

  1. Lines 11-13 contain duplicate development URLs
  2. Production setup should include:
    • SSL certificate setup instructions
    • Reverse proxy configuration example
    • Security headers recommendations

Apply this diff to fix the duplicate URL:

    ```bash 
-       http://<Instance_IP>:8080
-       # Development environment only
        http://<Instance_IP>:8080
        
        # Production environment (recommended)
        # Access through reverse proxy with HTTPS
        https://<your-domain>/jenkins

Comment on lines +39 to +44
- Configure Shared Library
- Configure the task effectively in centralized manner.
- Configure shared library for your Jenkins Server Navigate through Dashboard > Manage Jenkins > System, and add Global Trusted Pipeline Libraries. (Modern SCM)

![Shared-library](images/shared_library.png)

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🛠️ Refactor suggestion

Enhance shared library configuration documentation

The shared library section needs more implementation details:

  1. Example library structure
  2. Sample Groovy scripts
  3. Version control integration steps
  4. Usage examples in Jenkinsfile

Would you like me to provide a template for the shared library structure and example implementations?

Comment on lines +72 to +74
- **Payload URL**: `http://<your-jenkins-server>:8080/github-webhook/`
- **Content type**: `application/json`
- **Events**: Select **push** or others as needed.
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⚠️ Potential issue

Security: Update webhook configuration recommendations

The current webhook URL pattern could expose Jenkins to security risks. Consider:

  1. Using HTTPS exclusively for webhooks
  2. Adding authentication requirements
  3. Implementing IP whitelisting
  4. Using webhook secrets (mentioned but not detailed)

Update the webhook URL pattern to:

- **Payload URL**: `http://<your-jenkins-server>:8080/github-webhook/`
+ **Payload URL**: `https://<your-domain>/jenkins/github-webhook/`
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
- **Payload URL**: `http://<your-jenkins-server>:8080/github-webhook/`
- **Content type**: `application/json`
- **Events**: Select **push** or others as needed.
- **Payload URL**: `https://<your-domain>/jenkins/github-webhook/`
- **Content type**: `application/json`
- **Events**: Select **push** or others as needed.

Comment on lines +25 to +35
unhealthy_services=$(docker compose ps --format '{{.Name}}: {{.Status}}' | grep -v "(healthy)")
if [ -z "$unhealthy_services" ]; then
echo "All services are healthy"
exit 0
else
echo "Unhealthy services detected:"
echo "$unhealthy_services"
fi
echo "Waiting for services to be healthy (attempt $attempt/$max_attempts)..."
sleep 10
attempt=$((attempt + 1))
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🛠️ Refactor suggestion

Consider refining the health check logic for better reliability

The current health check may not accurately detect all unhealthy services, especially if a service's status doesn't include "(healthy)" when it's still starting up or in other statuses. Consider enhancing the health check to handle additional service statuses or using a more precise method to detect unhealthy services.

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Actionable comments posted: 18

🧹 Outside diff range and nitpick comments (21)
helm/bankapp/templates/ingress.yml (1)

10-10: Fix formatting issues

There are minor formatting issues that should be addressed:

  • Remove trailing spaces on lines 10 and 19
  • Remove extra blank lines at the end of the file

Apply these changes:

-  - host: bankapp.local # add 
+  - host: bankapp.local # add
   http:
     paths:
     - path: /
       pathType: Prefix
       backend:
         service:
           name: "{{ .Values.app_deployment.name }}-service"
           port:
-            number: {{ default "8080" .Values.bankapp_svc.port}} 
+            number: {{ default "8080" .Values.bankapp_svc.port }}
-
-

Also applies to: 19-20

🧰 Tools
🪛 yamllint (1.35.1)

[error] 10-10: trailing spaces

(trailing-spaces)

k8s/vpa.yaml (1)

12-12: Add newline at end of file

Add a newline character at the end of the file to comply with YAML best practices.

🧰 Tools
🪛 yamllint (1.35.1)

[error] 12-12: no new line character at the end of file

(new-line-at-end-of-file)

helm/bankapp/templates/secrets.yml (1)

4-4: Remove trailing whitespace

Remove the trailing whitespace after {{ .Values.secret.name }}.

🧰 Tools
🪛 yamllint (1.35.1)

[error] 4-4: trailing spaces

(trailing-spaces)

helm/bankapp/templates/vpa.yaml (1)

12-12: Add newline at end of file

Add a newline character at the end of the file to comply with YAML best practices.

🧰 Tools
🪛 yamllint (1.35.1)

[error] 12-12: no new line character at the end of file

(new-line-at-end-of-file)

k8s/hpa.yaml (1)

13-19: Consider adding memory-based scaling

The HPA only uses CPU metrics. For a bank application, memory utilization might be equally important for scaling decisions.

Add memory metric:

  metrics:
  - type: Resource
    resource:
      name: cpu
      target:
        type: Utilization
        averageUtilization: 40
  - type: Resource
    resource:
      name: memory
      target:
        type: Utilization
        averageUtilization: 80
helm/bankapp/templates/mysqlService.yml (1)

6-7: Standardize label selection

Consider adding recommended Kubernetes labels for better resource management and consistency.

   labels:
     app: {{ .Values.db_statefulset.name }}
+    app.kubernetes.io/name: {{ .Values.db_statefulset.name }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/component: database
helm/bankapp/templates/persistentVolume.yml (1)

4-7: Improve metadata configuration

The labels configuration could be enhanced to follow Kubernetes best practices.

Add recommended labels:

  labels:
    app: {{ .Values.app_deployment.name }}
+   app.kubernetes.io/name: {{ .Values.app_deployment.name }}
+   app.kubernetes.io/instance: {{ .Release.Name }}
+   app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+   app.kubernetes.io/managed-by: {{ .Release.Service }}
🧰 Tools
🪛 yamllint (1.35.1)

[error] 4-4: syntax error: expected , but found ''

(syntax)

helm/bankapp/templates/service.yml (1)

9-11: Review service type selection for production use

Using NodePort directly exposes the service on all nodes, which might not be the best choice for production:

  • Increases attack surface
  • Requires node port management
  • May conflict with organization's security policies

Consider:

  • Using LoadBalancer type with cloud providers
  • Using ClusterIP with an Ingress controller
  • If NodePort is required, ensure proper network security policies are in place
helm/bankapp/templates/hpa.yaml (2)

13-19: Consider adding memory-based scaling metrics

The HPA currently only scales based on CPU utilization. For a banking application, memory usage could be equally important.

   metrics:
   - type: Resource
     resource:
       name: cpu
       target:
         type: Utilization
         averageUtilization: {{ .Values.hpa.cpu_utilization }}
+  - type: Resource
+    resource:
+      name: memory
+      target:
+        type: Utilization
+        averageUtilization: {{ .Values.hpa.memory_utilization }}

6-12: Add behavior configuration for scaling

Consider adding behavior configuration to control scaling velocity and prevent thrashing.

 spec:
   scaleTargetRef:
     apiVersion: apps/v1
     kind: Deployment
     name: {{ .Values.app_deployment.name }}
   minReplicas: {{ .Values.hpa.min_replica }}
   maxReplicas: {{ .Values.hpa.max_replica }}
+  behavior:
+    scaleDown:
+      stabilizationWindowSeconds: 300
+      policies:
+      - type: Percent
+        value: 100
+        periodSeconds: 15
+    scaleUp:
+      stabilizationWindowSeconds: 0
+      policies:
+      - type: Percent
+        value: 100
+        periodSeconds: 15
+      - type: Pods
+        value: 4
+        periodSeconds: 15
helm/README.md (2)

9-9: Fix typo in prerequisites note

There's a typo in "Cotroller" and the sentence structure could be improved.

-**NOTE** This Helm chart assumes that you already have installed Ingress Cotroller, Metrics Server and VPA CRD
+**NOTE:** This Helm chart assumes that you have already installed the Ingress Controller, Metrics Server, and VPA CRD.
🧰 Tools
🪛 LanguageTool

[style] ~9-~9: To make your writing flow more naturally, try moving the adverb ‘already’ closer to the verb ‘installed’.
Context: ...NOTE** This Helm chart assumes that you already have installed Ingress Cotroller, Metrics Server and V...

(PERF_TENS_ADV_PLACEMENT)


1-48: Add missing essential sections to README

Important sections are missing from the documentation:

  • Prerequisites for the banking application (e.g., MySQL requirements)
  • Security considerations
  • Monitoring and logging setup
  • Backup and disaster recovery
  • Uninstallation instructions

Would you like me to help generate these additional sections?

🧰 Tools
🪛 LanguageTool

[style] ~9-~9: To make your writing flow more naturally, try moving the adverb ‘already’ closer to the verb ‘installed’.
Context: ...NOTE** This Helm chart assumes that you already have installed Ingress Cotroller, Metrics Server and V...

(PERF_TENS_ADV_PLACEMENT)


[uncategorized] ~42-~42: You might be missing the article “the” here.
Context: ...iple environments by changing values in values.yaml file ```bash helm install b...

(AI_EN_LECTOR_MISSING_DETERMINER_THE)

helm/bankapp/templates/mysqlStatefulSet.yml (2)

27-29: Consider using external secrets management

The current configuration directly references Kubernetes secrets. For enhanced security, consider using external secrets management solutions like HashiCorp Vault or AWS Secrets Manager with a secrets operator.


38-55: Review probe configuration timing

The current probe configuration might be too aggressive:

  • Liveness probe starts at 30s with 10s intervals
  • Readiness probe starts at 10s with 5s intervals

For MySQL, consider:

  • Increasing initialDelaySeconds for liveness probe to at least 60s
  • Adding failureThreshold parameters
        livenessProbe:
          exec:
            command:
            - mysqladmin
            - ping
            - -h
            - localhost
-         initialDelaySeconds: 30
+         initialDelaySeconds: 60
          periodSeconds: 10
+         failureThreshold: 3
        readinessProbe:
          exec:
            command:
            - mysqladmin
            - ping
            - -h
            - localhost
          initialDelaySeconds: 10
          periodSeconds: 5
+         failureThreshold: 3
k8s/hpa_vpa.md (2)

37-40: Improve load testing approach

The current load testing approach has limitations:

  1. No controlled traffic rate
  2. No proper exit condition
  3. No metrics collection

Consider using proper load testing tools like k6 or Apache JMeter, or enhance the current approach:

-    while true; do wget -q -O- http://bankapp-service.bankapp-namespace.svc.cluster.local; done
+    for i in $(seq 1 1000); do
+      wget -q -O- http://bankapp-service.bankapp-namespace.svc.cluster.local
+      sleep 0.1
+    done

82-82: Enhance documentation with troubleshooting section

Consider adding:

  1. Common issues and solutions
  2. How to verify autoscaling is working correctly
  3. Monitoring recommendations
helm/bankapp/templates/namespace.yml (3)

4-6: Enhance namespace configuration with recommended labels

The namespace definition could benefit from additional standard Kubernetes labels for better organization and management.

Consider adding these commonly used labels:

 metadata:
   name: {{ default "bankapp-namespace" .Values.namespace }}
   labels:
     name: {{ default "bankapp-namespace" .Values.namespace }}
+    app.kubernetes.io/name: bankapp
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}

1-7: Consider adding resource quotas and limits

The namespace is created without any resource constraints, which could lead to unbounded resource consumption.

Consider creating accompanying ResourceQuota and LimitRange resources to enforce resource constraints. Would you like me to provide examples of these resources?


8-8: Fix YAML formatting issues

The file has formatting issues that should be addressed:

  1. Missing newline at end of file
  2. Contains trailing spaces

Apply this fix:

-  
+
🧰 Tools
🪛 yamllint (1.35.1)

[error] 8-8: no new line character at the end of file

(new-line-at-end-of-file)


[error] 8-8: trailing spaces

(trailing-spaces)

helm/bankapp/Chart.yaml (2)

1-4: Enhance chart metadata with additional information.

While the basic metadata is present, consider adding:

  • A more descriptive explanation of the bankapp's purpose
  • A maintainers section to specify ownership
  • Keywords to help with chart discovery
 apiVersion: v2
 name: bankapp
-description: A Helm chart for Kubernetes
+description: A Helm chart for deploying the Spring Boot Banking Application
+maintainers:
+  - name: LondheShubham153
+    email: <email>
+keywords:
+  - banking
+  - springboot

24-24: Add newline at end of file.

Add a newline character at the end of the file to comply with YAML formatting standards.

 appVersion: "1.16.0"
+
🧰 Tools
🪛 yamllint (1.35.1)

[error] 24-24: no new line character at the end of file

(new-line-at-end-of-file)

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Reviewing files that changed from the base of the PR and between 5ce21df and 56b2a47.

📒 Files selected for processing (20)
  • helm/README.md (1 hunks)
  • helm/bankapp/Chart.yaml (1 hunks)
  • helm/bankapp/templates/NOTES.txt (1 hunks)
  • helm/bankapp/templates/configMap.yml (1 hunks)
  • helm/bankapp/templates/deployment.yml (1 hunks)
  • helm/bankapp/templates/hpa.yaml (1 hunks)
  • helm/bankapp/templates/ingress.yml (1 hunks)
  • helm/bankapp/templates/mysqlService.yml (1 hunks)
  • helm/bankapp/templates/mysqlStatefulSet.yml (1 hunks)
  • helm/bankapp/templates/namespace.yml (1 hunks)
  • helm/bankapp/templates/persistentVolume.yml (1 hunks)
  • helm/bankapp/templates/persistentVolumeClaim.yml (1 hunks)
  • helm/bankapp/templates/secrets.yml (1 hunks)
  • helm/bankapp/templates/service.yml (1 hunks)
  • helm/bankapp/templates/vpa.yaml (1 hunks)
  • helm/bankapp/values.yaml (1 hunks)
  • k8s/README.md (1 hunks)
  • k8s/hpa.yaml (1 hunks)
  • k8s/hpa_vpa.md (1 hunks)
  • k8s/vpa.yaml (1 hunks)
✅ Files skipped from review due to trivial changes (2)
  • helm/bankapp/templates/NOTES.txt
  • k8s/README.md
🧰 Additional context used
🪛 yamllint (1.35.1)
k8s/vpa.yaml

[error] 12-12: no new line character at the end of file

(new-line-at-end-of-file)

helm/bankapp/templates/mysqlService.yml

[error] 15-15: no new line character at the end of file

(new-line-at-end-of-file)

helm/bankapp/templates/ingress.yml

[error] 10-10: trailing spaces

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helm/bankapp/templates/secrets.yml

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helm/bankapp/templates/configMap.yml

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helm/bankapp/templates/service.yml

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helm/bankapp/templates/mysqlStatefulSet.yml

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helm/bankapp/templates/vpa.yaml

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helm/bankapp/templates/deployment.yml

[error] 31-31: trailing spaces

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helm/bankapp/templates/persistentVolume.yml

[warning] 10-10: too many spaces after colon

(colons)


[error] 4-4: syntax error: expected , but found ''

(syntax)

helm/bankapp/values.yaml

[error] 1-1: trailing spaces

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[warning] 8-8: wrong indentation: expected 4 but found 6

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[error] 54-54: trailing spaces

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helm/bankapp/Chart.yaml

[error] 24-24: no new line character at the end of file

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helm/bankapp/templates/namespace.yml

[error] 8-8: no new line character at the end of file

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[error] 8-8: trailing spaces

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🪛 LanguageTool
k8s/hpa_vpa.md

[uncategorized] ~5-~5: Possible missing comma found.
Context: ...etrics and configuration defined on HPA spec it scale-out (increases the number of i...

(AI_HYDRA_LEO_MISSING_COMMA)


[grammar] ~50-~50: The word “scale-up” is a noun. The verb is spelled with a space.
Context: ...` ## 2. Vertical Pod Autoscaler - It scale-up and scale down the request of resources...

(NOUN_VERB_CONFUSION)


[uncategorized] ~50-~50: This verb does not appear to agree with the subject. Consider using a different form.
Context: ...rtical Pod Autoscaler - It scale-up and scale down the request of resources (CPU, mem...

(AI_EN_LECTOR_REPLACEMENT_VERB_AGREEMENT)


[uncategorized] ~50-~50: The preposition “for” seems more likely in this position.
Context: ... It scale-up and scale down the request of resources (CPU, memory) depending on th...

(AI_EN_LECTOR_REPLACEMENT_PREPOSITION)

helm/README.md

[style] ~9-~9: To make your writing flow more naturally, try moving the adverb ‘already’ closer to the verb ‘installed’.
Context: ...NOTE** This Helm chart assumes that you already have installed Ingress Cotroller, Metrics Server and V...

(PERF_TENS_ADV_PLACEMENT)


[uncategorized] ~42-~42: You might be missing the article “the” here.
Context: ...iple environments by changing values in values.yaml file ```bash helm install b...

(AI_EN_LECTOR_MISSING_DETERMINER_THE)

🪛 Markdownlint (0.35.0)
k8s/hpa_vpa.md

9-9: Expected: h3; Actual: h4
Heading levels should only increment by one level at a time

(MD001, heading-increment)


55-55: Expected: h3; Actual: h4
Heading levels should only increment by one level at a time

(MD001, heading-increment)


14-14: Punctuation: '.'
Trailing punctuation in heading

(MD026, no-trailing-punctuation)


33-33: Punctuation: '.'
Trailing punctuation in heading

(MD026, no-trailing-punctuation)


42-42: Punctuation: '.'
Trailing punctuation in heading

(MD026, no-trailing-punctuation)


55-55: Punctuation: '.'
Trailing punctuation in heading

(MD026, no-trailing-punctuation)

🔇 Additional comments (7)
helm/bankapp/templates/ingress.yml (2)

1-2: LGTM! Correct API version for Kubernetes Ingress

The configuration uses the stable networking.k8s.io/v1 API version, which is appropriate for modern Kubernetes clusters.


9-19: 🛠️ Refactor suggestion

Add TLS configuration and improve host settings

The current configuration has several areas for improvement:

  1. Missing TLS configuration for secure HTTPS access
  2. The comment "# add" on line 10 suggests incomplete configuration
  3. Service port configuration could be more robust

Add TLS configuration and improve the specification:

 spec:
+  tls:
+  - hosts:
+    - {{ required "A valid host is required!" .Values.ingress.host }}
+    secretName: {{ .Values.ingress.tls.secretName }}
   rules:
-  - host: bankapp.local # add
+  - host: {{ required "A valid host is required!" .Values.ingress.host }}
     http:
       paths:
       - path: /
         pathType: Prefix
         backend:
           service:
             name: "{{ .Values.app_deployment.name }}-service"
             port:
-              number: {{ default "8080" .Values.bankapp_svc.port}} 
+              number: {{ required "A service port is required!" .Values.bankapp_svc.port }}

Let's verify if TLS secrets are properly configured:

🧰 Tools
🪛 yamllint (1.35.1)

[error] 10-10: trailing spaces

(trailing-spaces)


[error] 19-19: trailing spaces

(trailing-spaces)

helm/bankapp/templates/persistentVolumeClaim.yml (2)

14-14: Verify storage class availability

The storageClassName: manual might not exist in all Kubernetes clusters. Consider making it configurable or using cluster's default storage class.

-  storageClassName: manual
+  storageClassName: {{ default "manual" .Values.db_statefulset.storageClassName }}

13-13: 🛠️ Refactor suggestion

Validate storage request value

The storage request uses a direct template variable without validation. Consider adding a default value or validation to prevent deployment failures.

-      storage:  {{ .Values.db_statefulset.storage }}
+      storage: {{ default "1Gi" .Values.db_statefulset.storage }}
helm/bankapp/values.yaml (1)

19-22: 🛠️ Refactor suggestion

Review resource limits for banking application

The current resource limits might be too restrictive for a banking application:

  • CPU limit of 800m might cause throttling under load
  • Memory limit of 700Mi might be insufficient for JVM-based application

Consider adjusting the resources:

-  cpu_req: 80m
-  cpu_limit: 800m
-  mem_req: 150Mi
-  mem_limit: 700Mi
+  cpu_req: 500m
+  cpu_limit: 2000m
+  mem_req: 512Mi
+  mem_limit: 2Gi
helm/bankapp/templates/deployment.yml (1)

55-61: Verify resource limits alignment with VPA

The static resource limits might conflict with VPA settings. Ensure:

  1. The limits are appropriate for your application's needs
  2. They align with VPA's recommendations
  3. Consider adding requests.ephemeral-storage and limits.ephemeral-storage
✅ Verification successful

Resource limits are properly configured alongside VPA

The configuration is correct and well-aligned with VPA:

  • VPA is configured in "Auto" mode, which allows dynamic resource adjustment
  • The current static limits (CPU: 800m, Memory: 700Mi) serve as initial values and upper bounds
  • The requests (CPU: 80m, Memory: 150Mi) provide reasonable starting points for VPA to adjust from

No changes needed as:

  1. VPA will automatically adjust resource requests within these limits
  2. The limits are set at reasonable values for a Spring Boot application
  3. Ephemeral storage limits aren't critical for this stateless application
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check if VPA recommendations align with current limits
kubectl get vpa -n bankapp-namespace -o yaml | grep -A 10 recommendation

Length of output: 172


Script:

#!/bin/bash
# Let's check if VPA is configured in the Helm chart
fd "vpa" --type f

# Also check for any VPA-related configurations in values.yaml
rg -i "vpa|verticalPodAutoscaler" 

# Check the full deployment template for any VPA annotations or configurations
cat helm/bankapp/templates/deployment.yml

Length of output: 3475


Script:

#!/bin/bash
# Let's check the VPA configuration in the Helm chart
cat helm/bankapp/templates/vpa.yaml

# Also check the values.yaml for the resource limits configuration
cat helm/bankapp/values.yaml

Length of output: 1519

helm/bankapp/Chart.yaml (1)

5-13: LGTM! Correct chart type declaration with good documentation.

The chart is properly configured as an application type with helpful explanatory comments.

Comment on lines +3 to +7
metadata:
name: "{{ .Values.app_deployment.name }}-ingress"
namespace: {{ default "bankapp-namespace" .Values.namespace }}
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /
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🛠️ Refactor suggestion

Add security annotations and improve namespace handling

While the basic configuration is functional, consider adding these security-related annotations:

  • kubernetes.io/ingress.class: "nginx"
  • nginx.ingress.kubernetes.io/ssl-redirect: "true"
  • nginx.ingress.kubernetes.io/force-ssl-redirect: "true"

Also, consider making the namespace a required value instead of using a default.

Apply these changes:

 metadata:
   name: "{{ .Values.app_deployment.name }}-ingress"
-  namespace: {{ default "bankapp-namespace" .Values.namespace }}
+  namespace: {{ required "A namespace is required!" .Values.namespace }}
   annotations:
     nginx.ingress.kubernetes.io/rewrite-target: /
+    kubernetes.io/ingress.class: "nginx"
+    nginx.ingress.kubernetes.io/ssl-redirect: "true"
+    nginx.ingress.kubernetes.io/force-ssl-redirect: "true"
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
metadata:
name: "{{ .Values.app_deployment.name }}-ingress"
namespace: {{ default "bankapp-namespace" .Values.namespace }}
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /
metadata:
name: "{{ .Values.app_deployment.name }}-ingress"
namespace: {{ required "A namespace is required!" .Values.namespace }}
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /
kubernetes.io/ingress.class: "nginx"
nginx.ingress.kubernetes.io/ssl-redirect: "true"
nginx.ingress.kubernetes.io/force-ssl-redirect: "true"

k8s/vpa.yaml Outdated
Comment on lines 6 to 12
spec:
targetRef:
apiVersion: apps/v1
kind: Deployment
name: bankapp-deployment
updatePolicy:
updateMode: "Auto" # Options: "Off", "Initial", "Auto" No newline at end of file
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💡 Codebase verification

VPA configuration needs resource bounds and production-safe update mode

  1. The VPA configuration lacks resource constraints while the application deployment already has well-defined resource limits (CPU: 80m-800m, Memory: 150Mi-700Mi). Add these as VPA constraints:
spec:
  resourcePolicy:
    containerPolicies:
    - containerName: '*'
      minAllowed:
        cpu: "80m"
        memory: "150Mi"
      maxAllowed:
        cpu: "800m"
        memory: "700Mi"
  1. The "Auto" update mode is set in both k8s/vpa.yaml and the Helm template. For production safety, consider using "Initial" mode first to evaluate VPA's recommendations without automatic pod restarts, especially since you already have HPA configured with specific replica bounds (1-5).
🔗 Analysis chain

Consider adding resource constraints and reviewing update mode

  1. The VPA configuration lacks resource constraints which could lead to unbounded scaling. Consider adding resourcePolicy to set min/max bounds:
spec:
  resourcePolicy:
    containerPolicies:
    - containerName: '*'
      minAllowed:
        cpu: "100m"
        memory: "128Mi"
      maxAllowed:
        cpu: "1"
        memory: "1Gi"
  1. The "Auto" update mode will automatically restart pods to apply new resource recommendations. Consider using "Initial" mode in production initially to evaluate VPA's recommendations without automatic pod restarts.
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check if there are any existing VPA resources and their modes
kubectl get vpa -A -o=jsonpath='{range .items[*]}{.metadata.name}{"\t"}{.spec.updatePolicy.updateMode}{"\n"}{end}'

Length of output: 214


Script:

#!/bin/bash
# Let's check for other VPA configurations in the repository
fd -e yaml -e yml | xargs rg -l "kind:\s*VerticalPodAutoscaler" 

# Also check for any resource constraints in existing deployments
fd -e yaml -e yml | xargs rg "resources:" -A 5

Length of output: 1626


Script:

#!/bin/bash
# Let's check the content of both VPA files to compare configurations
cat k8s/vpa.yaml
cat helm/bankapp/templates/vpa.yaml

# Let's also check the deployment resource settings in values.yaml
fd values.yaml | xargs cat

Length of output: 1826

🧰 Tools
🪛 yamllint (1.35.1)

[error] 12-12: no new line character at the end of file

(new-line-at-end-of-file)

Comment on lines +1 to +9
apiVersion: v1
kind: Secret
metadata:
name: {{ .Values.secret.name }}
namespace: {{ default "bankapp-namespace" .Values.namespace }}
type: Opaque
data:
MYSQL_ROOT_PASSWORD: {{ .Values.secret.data.MYSQL_ROOT_PASSWORD | b64enc | quote }}
SPRING_DATASOURCE_PASSWORD: {{ .Values.secret.data.SPRING_DATASOURCE_PASSWORD | b64enc | quote }}
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💡 Codebase verification

🛠️ Refactor suggestion

Critical security concerns identified in secrets configuration

  1. Hardcoded plaintext passwords in values.yaml (Test@123) pose a significant security risk
  2. Secret template lacks immutability setting as suggested
  3. Secret is referenced with hardcoded name mysql-secret in StatefulSet and Deployment instead of using the templated value {{ .Values.secret.name }}

Recommendations:

  • Remove plaintext passwords from values.yaml and use external secret management
  • Add immutable field to prevent runtime modifications
  • Use consistent templated secret name reference: {{ .Values.secret.name }}
  • Add appropriate labels and annotations for better secret management
🔗 Analysis chain

Enhance secret security configuration

Consider these security improvements:

  1. Add immutable: true to prevent accidental updates
  2. Add labels for better resource management
  3. Consider using external secret management solutions (e.g., HashiCorp Vault, AWS Secrets Manager)
apiVersion: v1
kind: Secret
metadata:
  name: {{ .Values.secret.name }}
  namespace: {{ default "bankapp-namespace" .Values.namespace }}
  labels:
    app: bankapp
    component: database
  annotations:
    description: "Database credentials for bankapp"
type: Opaque
immutable: true
data:
  MYSQL_ROOT_PASSWORD: {{ .Values.secret.data.MYSQL_ROOT_PASSWORD | b64enc | quote }}
  SPRING_DATASOURCE_PASSWORD: {{ .Values.secret.data.SPRING_DATASOURCE_PASSWORD | b64enc | quote }}

The previous command with kubectl wasn't appropriate as we're dealing with Helm templates, not a running cluster. Let's examine the Helm chart configuration to verify the security concerns and validate the suggested improvements.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check for existing secrets and their configuration
kubectl get secrets -n bankapp-namespace -o=jsonpath='{range .items[*]}{.metadata.name}{"\t"}{.immutable}{"\n"}{end}'

Length of output: 217


Script:

#!/bin/bash
# Let's verify the Helm chart structure and values
fd -t f values.yaml -x cat {}

# Also check if there are any other secret configurations in the Helm chart
fd -t f -e yaml -e yml . helm/bankapp/templates/ -x cat {}

Length of output: 9504

🧰 Tools
🪛 yamllint (1.35.1)

[error] 4-4: trailing spaces

(trailing-spaces)

Comment on lines +1 to +12
apiVersion: autoscaling.k8s.io/v1
kind: VerticalPodAutoscaler
metadata:
name: "{{ .Values.app_deployment.name }}-vpa"
namespace: {{ default "bankapp-namespace" .Values.namespace }}
spec:
targetRef:
apiVersion: apps/v1
kind: Deployment
name: {{ .Values.app_deployment.name }}
updatePolicy:
updateMode: "Auto" # Options: "Off", "Initial", "Auto" No newline at end of file
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💡 Codebase verification

⚠️ Potential issue

Remove duplicate VPA configuration in k8s/vpa.yaml

The verification confirms that there are two VPA configurations:

  • k8s/vpa.yaml: Static configuration with hardcoded values
  • helm/bankapp/templates/vpa.yaml: Helm-templated version with configurable values

The Helm-templated version is more flexible and maintainable as it:

  • Uses configurable values for deployment name via .Values.app_deployment.name
  • Allows namespace configuration with a default fallback
  • Maintains the same functionality as the static version

Action items:

  • Remove the static configuration file k8s/vpa.yaml
  • Document in README or deployment guide that VPA is managed through Helm
🔗 Analysis chain

Review duplicate VPA configuration

This appears to be a duplicate of k8s/vpa.yaml with Helm templating. Consider:

  1. Removing the non-templated version (k8s/vpa.yaml)
  2. Adding documentation about which version should be used
  3. Adding resource constraints as mentioned in the previous VPA review

Let me verify the content of both files to confirm if they are indeed duplicates.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check for potential VPA duplicates
echo "Checking for VPA configurations in repository..."
find . -type f -exec grep -l "kind: VerticalPodAutoscaler" {} \;

Length of output: 225


Script:

#!/bin/bash
echo "Content of k8s/vpa.yaml:"
cat k8s/vpa.yaml
echo -e "\nContent of helm/bankapp/templates/vpa.yaml:"
cat helm/bankapp/templates/vpa.yaml

Length of output: 876

🧰 Tools
🪛 yamllint (1.35.1)

[error] 12-12: no new line character at the end of file

(new-line-at-end-of-file)

Comment on lines 4 to 5
name: bankapp-hpa
namespace: bankapp-namespace
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🛠️ Refactor suggestion

Make namespace and name configurable

The namespace and name are hardcoded. Consider making them configurable for better reusability across environments.

-  name: bankapp-hpa
-  namespace: bankapp-namespace
+  name: {{ .Release.Name }}-hpa
+  namespace: {{ .Values.namespace | default "bankapp-namespace" }}
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
name: bankapp-hpa
namespace: bankapp-namespace
name: {{ .Release.Name }}-hpa
namespace: {{ .Values.namespace | default "bankapp-namespace" }}

Comment on lines +36 to +45
## Run the SpringBoot Bankapp using helm
Install Bankapp from helm chart.
```bash
helm install bankapp bankapp/
```

You can install it for multiple environments by changing values in `values.yaml` file
```bash
helm install bankapp-dev bankapp/ --set namespace=dev-namespace --set bankapp_svc.nodePort=30081
```
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🛠️ Refactor suggestion

Enhance deployment documentation

The deployment section needs more detailed information about:

  • Values that can be customized
  • Post-installation verification steps
  • Troubleshooting guide

Would you like me to help generate a more comprehensive deployment guide?

🧰 Tools
🪛 LanguageTool

[uncategorized] ~42-~42: You might be missing the article “the” here.
Context: ...iple environments by changing values in values.yaml file ```bash helm install b...

(AI_EN_LECTOR_MISSING_DETERMINER_THE)

Comment on lines 62 to 66
accessModes:
- ReadWriteOnce
resources:
requests:
storage: {{ .Values.db_statefulset.storage }}
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🛠️ Refactor suggestion

Specify storage class and size requirements

The current volume claim template lacks:

  • StorageClass specification
  • Minimum storage requirements
      accessModes:
        - ReadWriteOnce
+     storageClassName: standard
      resources:
        requests:
-         storage:  {{ .Values.db_statefulset.storage }}
+         storage: {{ .Values.db_statefulset.storage }}
+     minStorage: "1Gi"

Committable suggestion skipped: line range outside the PR's diff.

🧰 Tools
🪛 yamllint (1.35.1)

[warning] 63-63: wrong indentation: expected 6 but found 8

(indentation)


[warning] 66-66: too many spaces after colon

(colons)

Comment on lines +19 to +21
- name: "wait-for-{{ .Values.db_statefulset.name }}"
image: busybox:1.28
command: ['sh', '-c', 'until nc -z {{ .Values.db_statefulset.name }}-0.{{ .Values.db_statefulset.name }}-headless 3306; do echo waiting for mysql; sleep 5; done;']
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🛠️ Refactor suggestion

Enhance init container reliability

The current init container implementation has several potential issues:

  1. Using a fixed busybox version (1.28) which might be outdated
  2. No timeout mechanism for the MySQL wait
  3. Simple nc check might not guarantee MySQL is ready to accept connections
      initContainers:
      - name: "wait-for-{{ .Values.db_statefulset.name }}"
-       image: busybox:1.28
+       image: busybox:latest
-       command: ['sh', '-c', 'until nc -z {{ .Values.db_statefulset.name }}-0.{{ .Values.db_statefulset.name }}-headless 3306; do echo waiting for mysql; sleep 5; done;']
+       command: ['sh', '-c', 'timeout 300 sh -c "until mysqladmin ping -h{{ .Values.db_statefulset.name }}-0.{{ .Values.db_statefulset.name }}-headless --silent; do echo waiting for mysql; sleep 5; done"']

Committable suggestion skipped: line range outside the PR's diff.

k8s/hpa_vpa.md Outdated
Comment on lines 16 to 23
```bash
kubectl edit deployments.apps -n kube-system metrics-server

# add these two enteries at: spec.template.spec.containers[0].args
# - --kubelet-insecure-tls
# - --kubelet-preferred-address-types=InternalIP,Hostname,ExternalIP

```
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⚠️ Potential issue

Security warning: TLS disabled in metrics-server

Disabling TLS in metrics-server (--kubelet-insecure-tls) poses security risks. Instead:

  1. Configure proper certificates
  2. Use kubelet certificate authentication

Comment on lines +15 to +24
# This is the chart version. This version number should be incremented each time you make changes
# to the chart and its templates, including the app version.
# Versions are expected to follow Semantic Versioning (https://semver.org/)
version: 0.1.0

# This is the version number of the application being deployed. This version number should be
# incremented each time you make changes to the application. Versions are not expected to
# follow Semantic Versioning. They should reflect the version the application is using.
# It is recommended to use it with quotes.
appVersion: "1.16.0" No newline at end of file
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💡 Codebase verification

Update appVersion in Chart.yaml to match application version

The appVersion "1.16.0" in Chart.yaml doesn't match your Spring Boot application version. Your application version is "0.0.1-SNAPSHOT" as defined in pom.xml. Please update the appVersion in Chart.yaml to "0.0.1-SNAPSHOT" to maintain consistency.

🔗 Analysis chain

Verify if appVersion matches the Spring Boot application version.

The appVersion "1.16.0" seems to be a default value. Please ensure it matches your Spring Boot application's actual version.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for Spring Boot version in pom.xml or build.gradle
echo "Checking for Spring Boot version in build files..."
fd -e xml -e gradle . -x grep -l "spring-boot"

# Also check Docker image tags that might indicate the app version
echo "Checking for version references in Dockerfile or docker-compose..."
fd "Docker|docker" -x grep -l "version"

Length of output: 371


Script:

#!/bin/bash
# Check Spring Boot version in pom.xml
echo "Spring Boot version from pom.xml:"
cat pom.xml | grep -A 2 "<parent>"

# Check current application version in pom.xml
echo -e "\nApplication version from pom.xml:"
cat pom.xml | grep -A 1 "<version>" | grep -v "<parent>"

# Check Docker image details
echo -e "\nDocker image details from docker-compose.yml:"
cat docker-compose.yml | grep -A 3 "image:"

Length of output: 991

🧰 Tools
🪛 yamllint (1.35.1)

[error] 24-24: no new line character at the end of file

(new-line-at-end-of-file)

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Actionable comments posted: 2

🧹 Nitpick comments (5)
README-K8S.md (5)

25-25: Specify AMI type for consistency.

Consider specifying the AMI type (e.g., Ubuntu 22.04 LTS) to ensure users follow consistent setup instructions.


58-61: Consider specifying managed node groups and VPC configuration.

The EKS cluster creation command could be enhanced with additional parameters:

eksctl create cluster --name=bankapp \
                      --region=us-west-1 \
                      --version=1.30 \
-                     --without-nodegroup
+                     --without-nodegroup \
+                     --vpc-public-subnets=subnet-xxx,subnet-yyy \
+                     --vpc-private-subnets=subnet-aaa,subnet-bbb \
+                     --with-oidc \
+                     --managed

87-99: Consider version pinning for Jenkins installation.

The Jenkins installation script should specify a version to ensure reproducible deployments.

sudo wget -O /usr/share/keyrings/jenkins-keyring.asc \
-  https://pkg.jenkins.io/debian-stable/jenkins.io-2023.key
+  https://pkg.jenkins.io/debian-stable/jenkins.io-2023.key
+JENKINS_VERSION="2.426.2"
+sudo apt-get install jenkins=${JENKINS_VERSION} -y

391-393: Security consideration: NodePort exposure in production.

Exposing Prometheus and Grafana directly via NodePort in production is not recommended. Consider using an ingress controller with proper authentication.


194-194: Fix grammatical issues in documentation.

Several grammatical issues need to be addressed:

  • Line 194: Use "an app password" instead of "a app password"
  • Line 199: Change "is create" to "is created"
  • Line 247: Add a comma after "While adding github credentials"

Also applies to: 199-199, 247-247

🧰 Tools
🪛 LanguageTool

[misspelling] ~194-~194: Use “an” instead of ‘a’ if the following word starts with a vowel sound, e.g. ‘an article’, ‘an hour’.
Context: ...or App password and create a app password for jenkins ![image]...

(EN_A_VS_AN)

🪛 Markdownlint (0.37.0)

194-194: Expected: 0; Actual: 2
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(MD007, ul-indent)

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📒 Files selected for processing (1)
  • README-K8S.md (1 hunks)
🧰 Additional context used
🪛 LanguageTool
README-K8S.md

[grammar] ~190-~190: ‘2 step’ is missing a hyphen.
Context: ...y > [!Important] > Make sure 2 step verification must be on ![image](htt...

(STARS_AND_STEPS)


[misspelling] ~194-~194: Use “an” instead of ‘a’ if the following word starts with a vowel sound, e.g. ‘an article’, ‘an hour’.
Context: ...or App password and create a app password for jenkins ![image]...

(EN_A_VS_AN)


[grammar] ~199-~199: Consider using either the past participle “created” or the present participle “creating” here.
Context: ...5c6fc) # - Once, app password is create and go back to jenkins Manage Jen...

(BEEN_PART_AGREEMENT)


[uncategorized] ~247-~247: Possible missing comma found.
Context: ...cdaef4) > [!Note] > While adding github credentials add Personal Access Token in the passwo...

(AI_HYDRA_LEO_MISSING_COMMA)


[style] ~428-~428: Using many exclamation marks might seem excessive (in this case: 23 exclamation marks for a text that’s 7534 characters long)
Context: ... # - Now, view the Dashboard in Grafana image ![image](https://github.com/user-attachme...

(EN_EXCESSIVE_EXCLAMATION)

🪛 Markdownlint (0.37.0)
README-K8S.md

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🔇 Additional comments (2)
README-K8S.md (2)

1-13: LGTM! Well-structured introduction and tech stack overview.

The introduction clearly outlines the purpose and technology stack used in the project.

🧰 Tools
🪛 Markdownlint (0.37.0)

3-3: Punctuation: ':'
Trailing punctuation in heading

(MD026, no-trailing-punctuation)


72-81: Security consideration: Restrict SSH access in production.

The nodegroup configuration allows SSH access (--ssh-access), which should be restricted in production environments.

✅ Verification successful

Security consideration: Restrict SSH access in production.

This appears to be a tutorial/documentation for setting up an EKS cluster, where SSH access is enabled for learning and debugging purposes. However, the security concern raised in the review comment is valid for production environments. The documentation shows:

  • SSH access is explicitly enabled with --ssh-access flag
  • SSH public key configuration is required
  • Multiple security group ports are opened as part of the setup

Since this is documentation for a learning environment rather than production configuration, I recommend:

  • Add a warning note about SSH access being for development/learning only
  • Include a security best practice section mentioning that SSH access should be disabled in production
  • Suggest using AWS Systems Manager Session Manager as a secure alternative for node access in production
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check if SSH ports are exposed in security groups
aws ec2 describe-security-groups --region us-west-1 --filters Name=group-name,Values='*eks*' --query 'SecurityGroups[*].{GroupName:GroupName,IpPermissions:IpPermissions[?FromPort==`22`]}' --output json

Length of output: 297


Script:

#!/bin/bash
# Let's check if there are any other security-related configurations or documentation
rg -i "ssh|security|access" README-K8S.md

# Also check for any other EKS or nodegroup configurations
rg -i "eksctl create nodegroup|eks cluster" -A 5 -B 5

Length of output: 5779

Comment on lines +373 to +375
```bash
helm install stable prometheus-community/kube-prometheus-stack -n prometheus
```
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🛠️ Refactor suggestion

Consider resource limits for Prometheus installation.

The Prometheus installation should specify resource limits to prevent potential resource exhaustion.

-helm install stable prometheus-community/kube-prometheus-stack -n prometheus
+helm install stable prometheus-community/kube-prometheus-stack -n prometheus \
+  --set prometheus.prometheusSpec.resources.limits.cpu="1000m" \
+  --set prometheus.prometheusSpec.resources.limits.memory="2Gi" \
+  --set prometheus.prometheusSpec.resources.requests.cpu="200m" \
+  --set prometheus.prometheusSpec.resources.requests.memory="1Gi"

#
- <b>Provide permission to docker socket so that docker build and push command do not fail</b>
```bash
chmod 777 /var/run/docker.sock
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⚠️ Potential issue

Security risk: Overly permissive Docker socket permissions.

Setting 777 permissions on the Docker socket is a security risk. Consider adding the Jenkins user to the Docker group instead.

-chmod 777 /var/run/docker.sock
+usermod -aG docker jenkins
+systemctl restart jenkins

Committable suggestion skipped: line range outside the PR's diff.

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Actionable comments posted: 12

🔭 Outside diff range comments (2)
GitOps/Jenkinsfile (2)

Line range hint 49-67: Improve Git operations with parameterization

The Git operations contain several hardcoded values:

  1. Repository URL
  2. Branch name "DevOps"
  3. Commit message

Consider parameterizing these values for better flexibility and reuse.

- git push https://github.com/DevMadhup/Springboot-BankApp.git DevOps
+ git push ${GIT_URL} ${GIT_BRANCH}

Line range hint 73-94: Security: Remove hardcoded email addresses

The email configuration contains hardcoded email addresses. This should be moved to Jenkins credentials or environment variables.

Consider using Jenkins credentials for email configuration:

- from: '8007930568pandey@gmail.com',
+ from: "${EMAIL_FROM}",
- to: '8007930568pandey@gmail.com',
+ to: "${EMAIL_TO}",
🧹 Nitpick comments (12)
Jenkinsfile (1)

66-66: Consider parameterizing the Docker username

The Docker username "madhupdevops" is hardcoded in both the build and push stages. Consider moving this to a parameter or environment variable for better maintainability.

- docker_build("bankapp","${params.DOCKER_TAG}","madhupdevops")
+ docker_build("bankapp","${params.DOCKER_TAG}","${params.DOCKER_USER}")

- docker_push("bankapp","${params.DOCKER_TAG}","madhupdevops")
+ docker_push("bankapp","${params.DOCKER_TAG}","${params.DOCKER_USER}")

Also applies to: 74-74

GitOps/Jenkinsfile (1)

40-40: Consider using a more robust manifest update method

The current sed command might be fragile if the image format changes. Consider using yq or a similar YAML-aware tool for more reliable updates.

- sed -i -e 's|madhupdevops/bankapp:.*|madhupdevops/bankapp:${params.DOCKER_TAG}|g' bankapp-deployment.yaml
+ yq e ".spec.template.spec.containers[0].image = \"madhupdevops/bankapp:${params.DOCKER_TAG}\"" -i bankapp-deployment.yaml
SSL-Encryption/README.md (3)

1-7: Add prerequisites and complete system update commands

Consider adding:

  • System requirements (e.g., Ubuntu version)
  • Prerequisites (e.g., running application, domain ownership)
  • The complete system update commands
 ## How to convert an application from HTTP to HTTPS
+
+### Prerequisites
+- Ubuntu 20.04 or later
+- A running application on port 8080
+- A registered domain name with DNS configured
 
 ### Steps:
 - Update the system
 ```bash
 sudo apt update
+sudo apt upgrade -y

<details>
<summary>🧰 Tools</summary>

<details>
<summary>🪛 Markdownlint (0.37.0)</summary>

3-3: Punctuation: ':'
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</details>

</details>

---

`54-68`: **Add backup and troubleshooting steps**

Include:
- Configuration backup step
- Common error resolution steps
- Log file locations for troubleshooting

```diff
+# Backup existing configuration
+sudo cp /etc/nginx/nginx.conf /etc/nginx/nginx.conf.backup
+
 # Create a symbolic link
 sudo ln -s /etc/nginx/sites-available/bankapp /etc/nginx/sites-enabled/
 
 # Test Nginx Configuration
 sudo nginx -t
 
+# Troubleshooting
+# Check error logs if issues occur:
+# sudo tail -f /var/log/nginx/error.log
+
 # Restart Nginx
 sudo systemctl restart nginx
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1-81: Fix markdown formatting issues

The document has several markdown formatting issues:

  • Replace # separators with horizontal rules (---)
  • Remove trailing colon from heading
  • Use proper link formatting for URLs
-### Steps:
+### Steps
 
 - Update the system
 ```bash
 sudo apt update

-#
+---

-http://junoon.trainwithshubham.com
+Access your application


<details>
<summary>🧰 Tools</summary>

<details>
<summary>🪛 LanguageTool</summary>

[uncategorized] ~72-~72: Possible missing article found.
Context: ...plication through Nginx. # - Now, apply SSL certificate to the Domain. ```bash sudo...

(AI_HYDRA_LEO_MISSING_AN)

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</details>

</details>

</blockquote></details>
<details>
<summary>kubernetes/bankapp-service.yaml (1)</summary><blockquote>

`8-14`: **Specify service type and add standard Kubernetes labels**

The service configuration could be more explicit and follow Kubernetes best practices.

Consider these improvements:
```diff
 spec:
+  type: ClusterIP
   selector:
     app: bankapp-deploy
+    tier: backend
   ports:
   - protocol: TCP
     port: 8080
     targetPort: 8080
+    name: http

Also, add recommended Kubernetes labels in metadata:

   labels:
     app: bankapp
+    app.kubernetes.io/name: bankapp
+    app.kubernetes.io/component: backend
+    app.kubernetes.io/part-of: banking-system
Ingress.md (2)

1-34: Add security best practices and troubleshooting section

The documentation provides good basic setup instructions but could be enhanced with:

  1. Security best practices
  2. Troubleshooting guide
  3. Configuration examples

Add these sections to the documentation:

## Security Best Practices

1. Enable TLS
   ```bash
   # Generate TLS certificate
   kubectl create secret tls ingress-tls --cert=path/to/cert.crt --key=path/to/key.key
  1. Configure CORS and Security Headers
    annotations:
      nginx.ingress.kubernetes.io/enable-cors: "true"
      nginx.ingress.kubernetes.io/cors-allow-methods: "PUT, GET, POST, OPTIONS"
      nginx.ingress.kubernetes.io/ssl-redirect: "true"

Troubleshooting Guide

  1. Check Ingress Controller Logs

    kubectl logs -n ingress-nginx deploy/ingress-nginx-controller
  2. Verify Ingress Resource

    kubectl describe ingress <ingress-name>

Example Configuration

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: bankapp-ingress
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  ingressClassName: nginx
  tls:
  - hosts:
    - bankapp.example.com
    secretName: ingress-tls
  rules:
  - host: bankapp.example.com
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: bankapp-service
            port:
              number: 8080

<details>
<summary>🧰 Tools</summary>

<details>
<summary>🪛 Markdownlint (0.37.0)</summary>

5-5: Expected: 0; Actual: 2
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---

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---

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</details>

</details>

---

`5-5`: **Fix markdown formatting**

The unordered list items should not be indented with spaces for better compatibility across markdown processors.


```diff
-  - Create a service account for the NGINX Ingress Controller and assign it the necessary permissions.
+- Create a service account for the NGINX Ingress Controller and assign it the necessary permissions.

-  - After applying the YAML file, verify that the NGINX Ingress Controller is installed and running.
+- After applying the YAML file, verify that the NGINX Ingress Controller is installed and running.

-  - If you want to access the Ingress controller externally (e.g., via LoadBalancer)
+- If you want to access the Ingress controller externally (e.g., via LoadBalancer)

Also applies to: 19-19, 28-28

🧰 Tools
🪛 Markdownlint (0.37.0)

5-5: Expected: 0; Actual: 2
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(MD007, ul-indent)

kubernetes/README.md (4)

1-2: Enhance documentation with version information and prerequisites.

Consider adding:

  • NGINX Ingress Controller version information
  • Kubernetes version compatibility
  • Prerequisites (e.g., kubectl access, cluster requirements)
  • Table of contents for better navigation

7-15: Consider making the deployment instructions more robust and informative.

  1. Using a raw GitHub URL poses risks:

    • The URL might change or become unavailable
    • Version control is not explicit
    • No offline fallback
  2. The resource list could be more informative by explaining:

    • The purpose of each resource
    • How to verify each component
    • Common troubleshooting steps

Consider adding:

 kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/main/deploy/static/provider/cloud/deploy.yaml
+
+# Alternative: Download and inspect the YAML first
+wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/main/deploy/static/provider/cloud/deploy.yaml
+kubectl apply -f deploy.yaml

27-34: Add security considerations and alternative exposure methods.

The current section lacks important security context and alternatives:

  1. Security considerations:

    • Exposing the ingress controller directly to the internet has security implications
    • Consider mentioning recommended security practices (TLS, network policies)
  2. Cloud-specific considerations:

    • LoadBalancer implementation varies by cloud provider
    • Cost implications of using LoadBalancer services
  3. Alternative exposure methods:

    • NodePort for development/testing
    • Internal LoadBalancer for private networks

Consider adding a security warning:

 This will expose the NGINX Ingress Controller via a LoadBalancer, allowing you to access your applications from outside the cluster.
+
+⚠️ Security Note:
+- Ensure proper network policies are in place
+- Configure TLS for production workloads
+- Consider using internal load balancers for private services
+
+Alternative Exposure Methods:
+```bash
+# Using NodePort
+kubectl patch svc ingress-nginx-controller -n ingress-nginx -p '{"spec": {"type": "NodePort"}}'
+
+# Using internal load balancer (cloud-specific)
+kubectl annotate svc ingress-nginx-controller -n ingress-nginx service.beta.kubernetes.io/aws-load-balancer-internal="true"
+```
🧰 Tools
🪛 Markdownlint (0.37.0)

28-28: Expected: 0; Actual: 2
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(MD007, ul-indent)


5-5: Fix markdown list indentation for better readability.

The unordered lists have inconsistent indentation. According to markdownlint:

  • Lists should have 0 space indentation
  • Current indentation is 2 spaces

Apply these formatting changes:

-  - Create a service account for the NGINX Ingress Controller...
+- Create a service account for the NGINX Ingress Controller...

-  - After applying the YAML file, verify that...
+- After applying the YAML file, verify that...

-  - If you want to access the Ingress controller externally...
+- If you want to access the Ingress controller externally...

Also applies to: 19-19, 28-28

🧰 Tools
🪛 Markdownlint (0.37.0)

5-5: Expected: 0; Actual: 2
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(MD007, ul-indent)

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 8fdab90 and 7ee83b1.

📒 Files selected for processing (13)
  • GitOps/Jenkinsfile (2 hunks)
  • Ingress.md (1 hunks)
  • Jenkinsfile (2 hunks)
  • SSL-Encryption/README.md (1 hunks)
  • kubernetes/README.md (1 hunks)
  • kubernetes/bankapp-deployment.yaml (1 hunks)
  • kubernetes/bankapp-namespace.yaml (1 hunks)
  • kubernetes/bankapp-service.yaml (1 hunks)
  • kubernetes/configmap.yaml (1 hunks)
  • kubernetes/ingress.yaml (1 hunks)
  • kubernetes/mysql-deployment.yaml (1 hunks)
  • kubernetes/mysql-service.yaml (1 hunks)
  • kubernetes/secrets.yaml (1 hunks)
✅ Files skipped from review due to trivial changes (3)
  • kubernetes/bankapp-namespace.yaml
  • kubernetes/mysql-service.yaml
  • kubernetes/configmap.yaml
🧰 Additional context used
🪛 yamllint (1.35.1)
kubernetes/bankapp-service.yaml

[error] 15-15: trailing spaces

(trailing-spaces)

kubernetes/secrets.yaml

[error] 10-10: trailing spaces

(trailing-spaces)

🪛 LanguageTool
SSL-Encryption/README.md

[uncategorized] ~72-~72: Possible missing article found.
Context: ...plication through Nginx. # - Now, apply SSL certificate to the Domain. ```bash sudo...

(AI_HYDRA_LEO_MISSING_AN)

🪛 Markdownlint (0.37.0)
SSL-Encryption/README.md

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kubernetes/README.md

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🪛 Gitleaks (8.21.2)
kubernetes/secrets.yaml

2-8: Possible Kubernetes Secret detected, posing a risk of leaking credentials/tokens from your deployments

(kubernetes-secret-yaml)

🔇 Additional comments (3)
Jenkinsfile (1)

50-50: LGTM! Project name standardization

The change from "BankApp" to "bankapp" aligns with Kubernetes naming conventions which prefer lowercase.

GitOps/Jenkinsfile (1)

38-41: Verify the kubernetes directory path

The pipeline assumes the existence of a 'kubernetes' directory and 'bankapp-deployment.yaml' file. Ensure these paths are correct in the repository.

✅ Verification successful

Path verification successful

The 'kubernetes/bankapp-deployment.yaml' file exists in the repository as expected by the pipeline configuration.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Verify the existence of kubernetes manifest
fd -t f "bankapp-deployment.yaml" kubernetes/

Length of output: 80

kubernetes/ingress.yaml (1)

1-20: Verify domain ownership and DNS configuration

Ensure that the domain junoon.trainwithshubham.com is properly configured and owned by your organization.

Comment on lines 36 to 52
server {
listen 80;
server_name junoon.trainwithshubham.com; # Replace with your domain

location / {
proxy_pass http://localhost:8080; # Replace port with your application port
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}

location ~ /\. {
deny all;
}
}
```
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🛠️ Refactor suggestion

Enhance server block configuration with security headers and placeholders

The server block configuration should:

  • Include additional security headers
  • Use placeholders instead of specific domains
  • Add SSL-related configurations
 server {
     listen 80;
-    server_name junoon.trainwithshubham.com; # Replace with your domain
+    server_name example.com; # Replace with your domain
 
     location / {
         proxy_pass http://localhost:8080; # Replace port with your application port
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header X-Forwarded-Proto $scheme;
+        
+        # Security headers
+        add_header X-Frame-Options "SAMEORIGIN";
+        add_header X-XSS-Protection "1; mode=block";
+        add_header X-Content-Type-Options "nosniff";
+        add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
     }
 
     location ~ /\. {
         deny all;
     }
+    
+    # SSL configuration will be added by certbot
 }
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
server {
listen 80;
server_name junoon.trainwithshubham.com; # Replace with your domain
location / {
proxy_pass http://localhost:8080; # Replace port with your application port
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
location ~ /\. {
deny all;
}
}
```
server {
listen 80;
server_name example.com; # Replace with your domain
location / {
proxy_pass http://localhost:8080; # Replace port with your application port
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
# Security headers
add_header X-Frame-Options "SAMEORIGIN";
add_header X-XSS-Protection "1; mode=block";
add_header X-Content-Type-Options "nosniff";
add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
}
location ~ /\. {
deny all;
}
# SSL configuration will be added by certbot
}

Comment on lines 70 to 81
- Open your web browser and navigate to http://junoon.trainwithshubham.com. Replace junoon.trainwithshubham.com with your actual domain. You should now be able to access an application through Nginx.
#
- Now, apply SSL certificate to the Domain.
```bash
sudo apt install python3-certbot-nginx
```
```bash
certbot --version
```
```bash
certbot --nginx -d junoon.trainwithshubham.com
```
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🛠️ Refactor suggestion

Complete SSL certificate management instructions

Add:

  • Certificate renewal setup
  • Certificate validation steps
  • Use placeholder domain names
-http://junoon.trainwithshubham.com
+http://example.com

 # Install certbot
 sudo apt install python3-certbot-nginx
 
 # Verify installation
 certbot --version
 
-certbot --nginx -d junoon.trainwithshubham.com
+# Replace example.com with your domain
+certbot --nginx -d example.com
+
+# Verify SSL certificate
+curl -vI https://example.com
+
+# Set up automatic renewal
+sudo systemctl status certbot.timer
+
+# Test automatic renewal
+sudo certbot renew --dry-run
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
- Open your web browser and navigate to http://junoon.trainwithshubham.com. Replace junoon.trainwithshubham.com with your actual domain. You should now be able to access an application through Nginx.
#
- Now, apply SSL certificate to the Domain.
```bash
sudo apt install python3-certbot-nginx
```
```bash
certbot --version
```
```bash
certbot --nginx -d junoon.trainwithshubham.com
```
- Open your web browser and navigate to http://example.com. Replace example.com with your actual domain. You should now be able to access an application through Nginx.
#
- Now, apply SSL certificate to the Domain.
🧰 Tools
🪛 LanguageTool

[uncategorized] ~72-~72: Possible missing article found.
Context: ...plication through Nginx. # - Now, apply SSL certificate to the Domain. ```bash sudo...

(AI_HYDRA_LEO_MISSING_AN)

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71-71: null
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(MD024, no-duplicate-heading)


70-70: null
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Comment on lines 9 to 22
- Install Nginx using the following command:
```bash
sudo apt install nginx
```
#
- Once the installation is complete, start the Nginx service:
```bash
sudo service nginx start
```
#
- Enable Nginx to Start on Boot
```bash
sudo systemctl enable nginx
```
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🛠️ Refactor suggestion

Add firewall configuration and service verification steps

The Nginx setup should include:

  • Firewall configuration to allow HTTP/HTTPS traffic
  • Service status verification
 sudo apt install nginx
+
+# Verify Nginx installation
+nginx -v
+
+# Configure firewall
+sudo ufw allow 'Nginx Full'
+sudo ufw status

Committable suggestion skipped: line range outside the PR's diff.

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Multiple headings with the same content

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18-18: null
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(MD024, no-duplicate-heading)

Comment on lines 8 to 9
MYSQL_ROOT_PASSWORD: VGVzdEAxMjM= # Base64 for "Test@123"
SPRING_DATASOURCE_PASSWORD: VGVzdEAxMjM= # Base64 for "Test@123"
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⚠️ Potential issue

Critical: Remove hardcoded credentials from version control

Storing sensitive credentials in version control, even if base64 encoded, poses a significant security risk. Base64 encoding is easily reversible and should not be used for securing sensitive data.

Recommendations:

  1. Remove hardcoded values and use external secret management solutions (e.g., HashiCorp Vault, AWS Secrets Manager)
  2. Use Kubernetes External Secrets operator or similar tools to manage secrets
  3. Document the process for secret management in your team's runbook

Example implementation using external secrets:

apiVersion: external-secrets.io/v1beta1
kind: ExternalSecret
metadata:
  name: mysql-secret
  namespace: bankapp-namespace
spec:
  refreshInterval: "15m"
  secretStoreRef:
    name: vault-backend
    kind: SecretStore
  target:
    name: mysql-secret
  data:
    - secretKey: MYSQL_ROOT_PASSWORD
      remoteRef:
        key: banking/mysql
        property: root-password
    - secretKey: SPRING_DATASOURCE_PASSWORD
      remoteRef:
        key: banking/mysql
        property: app-password

Comment on lines 1 to 6
apiVersion: v1
kind: Secret
metadata:
name: mysql-secret
namespace: bankapp-namespace
type: Opaque
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🛠️ Refactor suggestion

Add metadata labels and annotations for secret management

The secret lacks important metadata for management and tracking.

Add the following labels and annotations:

 apiVersion: v1
 kind: Secret
 metadata:
   name: mysql-secret
   namespace: bankapp-namespace
+  labels:
+    app: bankapp
+    component: database
+  annotations:
+    secret-rotation: "enabled"
+    last-rotated: "2024-12-01"
 type: Opaque
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
apiVersion: v1
kind: Secret
metadata:
name: mysql-secret
namespace: bankapp-namespace
type: Opaque
apiVersion: v1
kind: Secret
metadata:
name: mysql-secret
namespace: bankapp-namespace
labels:
app: bankapp
component: database
annotations:
secret-rotation: "enabled"
last-rotated: "2024-12-01"
type: Opaque

Comment on lines 24 to 27
- name: MYSQL_ROOT_PASSWORD
value: Test@123
- name: MYSQL_DATABASE
value: BankDB
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⚠️ Potential issue

Move sensitive data to Kubernetes Secrets

Storing passwords and database names directly in the deployment manifest is a security risk. These should be stored in Kubernetes Secrets.

Create a Secret for MySQL credentials and reference it in the deployment:

# mysql-secret.yaml
apiVersion: v1
kind: Secret
metadata:
  name: mysql-secret
  namespace: bankapp-namespace
type: Opaque
data:
  MYSQL_ROOT_PASSWORD: <base64-encoded-password>
  MYSQL_DATABASE: <base64-encoded-database-name>

Then update the deployment:

        env:
        - name: MYSQL_ROOT_PASSWORD
-         value: Test@123
+         valueFrom:
+           secretKeyRef:
+             name: mysql-secret
+             key: MYSQL_ROOT_PASSWORD
        - name: MYSQL_DATABASE
-         value: BankDB
+         valueFrom:
+           secretKeyRef:
+             name: mysql-secret
+             key: MYSQL_DATABASE

Comment on lines 1 to 27
apiVersion: apps/v1
kind: Deployment
metadata:
name: mysql
namespace: bankapp-namespace
labels:
app: mysql
spec:
replicas: 1
selector:
matchLabels:
app: mysql
template:
metadata:
labels:
app: mysql
spec:
containers:
- name: mysql
image: mysql:latest
ports:
- containerPort: 3306
env:
- name: MYSQL_ROOT_PASSWORD
value: Test@123
- name: MYSQL_DATABASE
value: BankDB
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⚠️ Potential issue

Add essential production configurations

The deployment is missing several crucial configurations needed for production:

  1. Persistent storage for data
  2. Resource limits
  3. Health checks
  4. Security context

Here's a comprehensive fix:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: mysql
  namespace: bankapp-namespace
  labels:
    app: mysql
spec:
  replicas: 1
  selector:
    matchLabels:
      app: mysql
  template:
    metadata:
      labels:
        app: mysql
    spec:
+     securityContext:
+       fsGroup: 999
      containers:
      - name: mysql
        image: mysql:8.0
        ports:
        - containerPort: 3306
+       resources:
+         requests:
+           memory: "512Mi"
+           cpu: "250m"
+         limits:
+           memory: "1Gi"
+           cpu: "500m"
+       livenessProbe:
+         tcpSocket:
+           port: 3306
+         initialDelaySeconds: 30
+         periodSeconds: 10
+       readinessProbe:
+         tcpSocket:
+           port: 3306
+         initialDelaySeconds: 5
+         periodSeconds: 2
        env:
        # ... (env vars from previous comment)
+       volumeMounts:
+       - name: mysql-persistent-storage
+         mountPath: /var/lib/mysql
+     volumes:
+     - name: mysql-persistent-storage
+       persistentVolumeClaim:
+         claimName: mysql-pvc

Also create a PVC:

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: mysql-pvc
  namespace: bankapp-namespace
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 10Gi

spec:
containers:
- name: mysql
image: mysql:latest
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⚠️ Potential issue

Avoid using 'latest' tag for production deployments

Using the latest tag is not recommended as it:

  • Makes rollbacks difficult
  • Can lead to unexpected behavior when the image updates
  • Makes it hard to track which version is deployed

Specify an explicit version:

- image: mysql:latest
+ image: mysql:8.0
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
image: mysql:latest
image: mysql:8.0

Comment on lines 1 to 43
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: bankapp-deploy
name: bankapp-deploy
namespace: bankapp-namespace
spec:
replicas: 2
selector:
matchLabels:
app: bankapp-deploy
template:
metadata:
labels:
app: bankapp-deploy
spec:
containers:
- image: madhupdevops/bankapp:v8
name: bankapp
ports:
- containerPort: 8080
env:
- name: SPRING_DATASOURCE_URL
valueFrom:
configMapKeyRef:
name: bankapp-config
key: SPRING_DATASOURCE_URL
- name: SPRING_DATASOURCE_USERNAME
valueFrom:
configMapKeyRef:
name: bankapp-config
key: SPRING_DATASOURCE_USERNAME
- name: MYSQL_DATABASE
valueFrom:
configMapKeyRef:
name: bankapp-config
key: MYSQL_DATABASE
- name: SPRING_DATASOURCE_PASSWORD
valueFrom:
secretKeyRef:
name: mysql-secret
key: SPRING_DATASOURCE_PASSWORD
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🛠️ Refactor suggestion

Add production readiness configurations

While the configuration management is well done using ConfigMap and Secrets, the deployment is missing essential production configurations:

  1. Resource limits
  2. Health checks
  3. Pod disruption budget for high availability

Add the following configurations:

    spec:
      containers:
      - image: madhupdevops/bankapp:v8
        name: bankapp
+       resources:
+         requests:
+           memory: "512Mi"
+           cpu: "250m"
+         limits:
+           memory: "1Gi"
+           cpu: "500m"
+       livenessProbe:
+         httpGet:
+           path: /actuator/health
+           port: 8080
+         initialDelaySeconds: 30
+         periodSeconds: 10
+       readinessProbe:
+         httpGet:
+           path: /actuator/health
+           port: 8080
+         initialDelaySeconds: 5
+         periodSeconds: 2
        ports:
        - containerPort: 8080

Also add a PodDisruptionBudget:

apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
  name: bankapp-pdb
  namespace: bankapp-namespace
spec:
  minAvailable: 1
  selector:
    matchLabels:
      app: bankapp-deploy

Comment on lines 18 to 24
2) Verify Ingress Controller Installation
- After applying the YAML file, verify that the NGINX Ingress Controller is installed and running.
```bash
kubectl get pods -n ingress-nginx
```
This should show the ingress-nginx-controller pods running.

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🛠️ Refactor suggestion

Enhance verification steps with more detailed checks and troubleshooting.

The current verification step only checks pod status. Consider adding:

  • Expected output examples
  • Additional verification commands
  • Troubleshooting steps for common issues

Add these verification steps:

 kubectl get pods -n ingress-nginx
+
+# Verify the controller service
+kubectl get svc -n ingress-nginx
+
+# Check controller logs
+kubectl logs -n ingress-nginx deploy/ingress-nginx-controller
+
+# Verify ingress class
+kubectl get ingressclass
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
2) Verify Ingress Controller Installation
- After applying the YAML file, verify that the NGINX Ingress Controller is installed and running.
```bash
kubectl get pods -n ingress-nginx
```
This should show the ingress-nginx-controller pods running.
2) Verify Ingress Controller Installation
- After applying the YAML file, verify that the NGINX Ingress Controller is installed and running.
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19-19: Expected: 0; Actual: 2
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Actionable comments posted: 0

🧹 Nitpick comments (2)
kubernetes/persistent-volume-claim.yaml (2)

3-5: Consider adding labels for better resource management.

While the basic configuration is correct, consider adding labels to help with resource management and monitoring.

 metadata:
   name: mysql-pvc
   namespace: bankapp-namespace
+  labels:
+    app: bankapp
+    tier: database

1-12: LGTM! The PVC configuration is well-structured.

The PVC configuration follows best practices:

  • ReadWriteOnce access mode is appropriate for MySQL
  • Storage request is explicitly defined
  • Namespace isolation is properly configured

Consider implementing:

  1. Storage monitoring to track usage and plan for scaling
  2. Backup strategy for the persistent volume
📜 Review details

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Review profile: CHILL
Plan: Pro

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Reviewing files that changed from the base of the PR and between 7ee83b1 and 993b7c3.

📒 Files selected for processing (1)
  • kubernetes/persistent-volume-claim.yaml (1 hunks)
🔇 Additional comments (1)
kubernetes/persistent-volume-claim.yaml (1)

7-12: Verify storage class availability in your cluster.

The configuration looks good, but ensure that:

  1. The 'standard' storage class exists in your target cluster
  2. 10Gi storage capacity is sufficient for your database growth projections

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Actionable comments posted: 9

🧹 Nitpick comments (3)
README.md (3)

7-16: Enhance the tech stack section with version information.

The tech stack section provides a good overview but could be more helpful with specific version requirements or compatibility information.

Consider adding version information like this:

 ## Tech stack used in this project:
-GitHub (Code)
-Docker (Containerization)
+GitHub (Code Repository)
+Docker CE 24.x (Containerization)
-Jenkins (CI)
+Jenkins 2.x (CI Server)
-OWASP (Dependency check)
+OWASP Dependency Check 8.x
🧰 Tools
🪛 Markdownlint (0.37.0)

7-7: Punctuation: ':'
Trailing punctuation in heading

(MD026, no-trailing-punctuation)


62-66: Security consideration for EKS cluster configuration.

The EKS cluster configuration exposes potential security concerns:

  1. No specification of private subnets
  2. SSH access enabled without clear security group rules
  3. Node group configuration allows direct internet access

Consider adding:

  • VPC configuration with private subnets
  • Security group specifications
  • Node group security best practices
  • IAM roles and policies documentation

Also applies to: 76-86


Line range hint 1-444: Documentation quality improvements needed.

Several formatting and grammar issues need attention:

  1. Add hyphen in "2-step verification" (line 194)
  2. Use "an" instead of "a" before "app password" (line 198)
  3. Fix verb tense in "password is create" to "password is created" (line 203)
  4. Add missing commas in various locations
  5. Standardize heading formatting

Would you like me to generate a script to automatically fix these formatting issues?

🧰 Tools
🪛 LanguageTool

[grammar] ~194-~194: ‘2 step’ is missing a hyphen.
Context: ...y > [!Important] > Make sure 2 step verification must be on ![image](htt...

(STARS_AND_STEPS)


[misspelling] ~198-~198: Use “an” instead of ‘a’ if the following word starts with a vowel sound, e.g. ‘an article’, ‘an hour’.
Context: ...or App password and create a app password for jenkins ![image]...

(EN_A_VS_AN)


[grammar] ~203-~203: Consider using either the past participle “created” or the present participle “creating” here.
Context: ...5c6fc) # - Once, app password is create and go back to jenkins Manage Jen...

(BEEN_PART_AGREEMENT)


[uncategorized] ~251-~251: Possible missing comma found.
Context: ...cdaef4) > [!Note] > While adding github credentials add Personal Access Token in the passwo...

(AI_HYDRA_LEO_MISSING_COMMA)


[uncategorized] ~396-~396: Possible missing comma found.
Context: ...ge it from Cluster IP to NodePort after changing make sure you save the file and open th...

(AI_HYDRA_LEO_MISSING_COMMA)


[style] ~432-~432: Using many exclamation marks might seem excessive (in this case: 23 exclamation marks for a text that’s 7631 characters long)
Context: ... # - Now, view the Dashboard in Grafana image ![image](https://github.com/user-attachme...

(EN_EXCESSIVE_EXCLAMATION)

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📒 Files selected for processing (3)
  • README.md (1 hunks)
  • kubernetes/mysql-deployment.yaml (1 hunks)
  • kubernetes/persistent-volume.yaml (1 hunks)
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README.md

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Context: ...y
> [!Important] > Make sure 2 step verification must be on ![image](htt...

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Context: ...or App password and create a app password for jenkins ![image]...

(EN_A_VS_AN)


[grammar] ~203-~203: Consider using either the past participle “created” or the present participle “creating” here.
Context: ...5c6fc) # - Once, app password is create and go back to jenkins Manage Jen...

(BEEN_PART_AGREEMENT)


[uncategorized] ~251-~251: Possible missing comma found.
Context: ...cdaef4) > [!Note] > While adding github credentials add Personal Access Token in the passwo...

(AI_HYDRA_LEO_MISSING_COMMA)


[uncategorized] ~396-~396: Possible missing comma found.
Context: ...ge it from Cluster IP to NodePort after changing make sure you save the file and open th...

(AI_HYDRA_LEO_MISSING_COMMA)


[style] ~432-~432: Using many exclamation marks might seem excessive (in this case: 23 exclamation marks for a text that’s 7631 characters long)
Context: ... # - Now, view the Dashboard in Grafana image ![image](https://github.com/user-attachme...

(EN_EXCESSIVE_EXCLAMATION)

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🔇 Additional comments (3)
kubernetes/mysql-deployment.yaml (3)

20-20: Avoid using 'latest' tag for production deployments


24-27: Move sensitive data to Kubernetes Secrets


28-34: ⚠️ Potential issue

Fix volume mount name mismatch

The volume mount name doesn't match between the mount and the volume definition, which could cause confusion in maintenance.

Apply this fix:

       volumeMounts:
-      - name: mysql-pv-storage
+      - name: mysql-persistent-storage
         mountPath: /var/lib/mysql
     volumes:
-    - name: mysql-pv-storage
+    - name: mysql-persistent-storage
       persistentVolumeClaim:
         claimName: mysql-pvc

Likely invalid or redundant comment.

Comment on lines +29 to +32
- <b>Create 1 Master machine on AWS (t2.medium) and 29 GB of storage.</b>
#
### STEPS TO IMPLEMENT THE PROJECT
- **<p id="Docker">Deployment using Docker</p>**
- Clone the repository
- <b>Open the below ports in security group</b>
![image](https://github.com/user-attachments/assets/4e5ecd37-fe2e-4e4b-a6ba-14c7b62715a3)
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🛠️ Refactor suggestion

Add specific EC2 instance requirements.

The EC2 instance setup instructions should include more specific requirements.

Add the following details:

  • Minimum CPU and RAM requirements
  • Required free disk space for Docker images
  • Recommended OS version
  • Required open ports in a table format
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Comment on lines +105 to +107
- After installing Jenkins, change the default port of jenkins from 8080 to 8081. Because our bankapp application will be running on 8080.
- Open /usr/lib/systemd/system/jenkins.service file and change JENKINS_PORT environment variable
![image](https://github.com/user-attachments/assets/6320ae49-82d4-4ae3-9811-bd6f06778483)
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🛠️ Refactor suggestion

Add validation steps for Jenkins port change.

The Jenkins port change instructions should include validation steps.

Add these verification steps:

# Verify Jenkins is listening on the new port
sudo netstat -tlpn | grep 8081

# Test Jenkins accessibility
curl -I http://localhost:8081

Comment on lines +189 to +214
- <b id="Mail">Go to your Jenkins Master EC2 instance and allow 465 port number for SMTPS</b>
#
- <b>Now, we need to generate an application password from our gmail account to authenticate with jenkins</b>
- <b>Open gmail and go to <mark>Manage your Google Account --> Security</mark></b>
> [!Important]
> Make sure 2 step verification must be on

![image](https://github.com/user-attachments/assets/5ab9dc9d-dcce-4f9d-9908-01095f1253cb)

- <b>Search for <mark>App password</mark> and create a app password for jenkins</b>
![image](https://github.com/user-attachments/assets/701752da-7703-4685-8f06-fe1f65dd1b9c)
![image](https://github.com/user-attachments/assets/adc8d8c0-8be4-4319-9042-4115abb5c6fc)

#
- <b> Once, app password is create and go back to jenkins <mark>Manage Jenkins --> Credentials</mark> to add username and password for email notification</b>
![image](https://github.com/user-attachments/assets/2a42ec62-87c8-43c8-a034-7be0beb8824e)

#
- <b> Go back to <mark>Manage Jenkins --> System</mark> and search for <mark>Extended E-mail Notification</mark></b>
![image](https://github.com/user-attachments/assets/bac81e24-bb07-4659-a251-955966feded8)
#
- <b>Scroll down and search for <mark>E-mail Notification</mark> and setup email notification</b>
> [!Important]
> Enter your gmail password which we copied recently in password field <mark>E-mail Notification --> Advance</mark>

![image](https://github.com/user-attachments/assets/14e254fc-1400-457e-b3f4-046404b66950)
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⚠️ Potential issue

Security concern: Email configuration exposure.

The email notification setup exposes sensitive configuration details in screenshots.

Recommendations:

  1. Remove screenshots containing email addresses or sensitive data
  2. Use placeholder values in examples
  3. Add a security warning about storing credentials
  4. Document the use of Jenkins Credentials store for sensitive data
🧰 Tools
🪛 LanguageTool

[grammar] ~194-~194: ‘2 step’ is missing a hyphen.
Context: ...y > [!Important] > Make sure 2 step verification must be on ![image](htt...

(STARS_AND_STEPS)


[misspelling] ~198-~198: Use “an” instead of ‘a’ if the following word starts with a vowel sound, e.g. ‘an article’, ‘an hour’.
Context: ...or App password and create a app password for jenkins ![image]...

(EN_A_VS_AN)


[grammar] ~203-~203: Consider using either the past participle “created” or the present participle “creating” here.
Context: ...5c6fc) # - Once, app password is create and go back to jenkins Manage Jen...

(BEEN_PART_AGREEMENT)

🪛 Markdownlint (0.37.0)

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Comment on lines +315 to +318
- <b>Provide permission to docker socket so that docker build and push command do not fail</b>
```bash
chmod 777 /var/run/docker.sock
```
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⚠️ Potential issue

Security risk: Docker socket permissions.

Setting 777 permissions on the Docker socket is a significant security risk.

Replace with:

# Add jenkins user to docker group instead
sudo usermod -aG docker jenkins
sudo systemctl restart jenkins

Comment on lines +342 to +373
## How to monitor EKS cluster, kubernetes components and workloads using prometheus and grafana via HELM (On Master machine)
- <p id="Monitor">Install Helm Chart</p>
```bash
curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3
```
```bash
chmod 700 get_helm.sh
```
```bash
./get_helm.sh
```

#
- Add Helm Stable Charts for Your Local Client
```bash
helm repo add stable https://charts.helm.sh/stable
```

#
- Add Prometheus Helm Repository
```bash
helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
```

#
- Create Prometheus Namespace
```bash
kubectl create namespace prometheus
```
```bash
kubectl get ns
```
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🛠️ Refactor suggestion

Enhance monitoring setup documentation.

The monitoring setup section needs additional information for production readiness.

Add:

  • Resource requirements for Prometheus and Grafana
  • Retention configuration
  • Backup procedures
  • Alert configuration
  • Dashboard setup instructions
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Comment on lines +439 to +443
## Clean Up
- <b id="Clean">Delete eks cluster</b>
```bash
eksctl delete cluster --name=bankapp --region=us-west-1
```
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🛠️ Refactor suggestion

Add pre-cleanup verification steps.

The cleanup section should include verification steps before cluster deletion.

Add these steps:

# List all resources before cleanup
kubectl get all --all-namespaces

# Verify no production workloads are running
kubectl get pods --all-namespaces

# Backup any important configurations
kubectl get configmap --all-namespaces -o yaml > configmap-backup.yaml
kubectl get secret --all-namespaces -o yaml > secret-backup.yaml

Comment on lines +14 to +16
hostPath:
path: /mnt/data/mysql
type: DirectoryOrCreate
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⚠️ Potential issue

Avoid using hostPath for production workloads

Using hostPath for persistent storage in production environments is not recommended because:

  • Data persistence depends on specific node availability
  • No data replication or backup mechanisms
  • Potential security risks with host filesystem access
  • Node maintenance can cause data loss

Consider using a cloud provider's storage class or a proper storage solution like:

  • AWS EBS
  • Azure Disk
  • GCE Persistent Disk
  • NFS with proper backup solutions
-  hostPath:
-    path: /mnt/data/mysql
-    type: DirectoryOrCreate
+  # For AWS EKS
+  awsElasticBlockStore:
+    volumeID: <volume-id>
+    fsType: ext4

Committable suggestion skipped: line range outside the PR's diff.

Comment on lines +1 to +16
apiVersion: v1
kind: PersistentVolume
metadata:
name: mysql-pv
namespace: bankapp-namespace
spec:
capacity:
storage: 10Gi
volumeMode: Filesystem
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Retain # Keeps the PV after the PVC is deleted
storageClassName: standard # Make sure this matches your cluster's default storage class
hostPath:
path: /mnt/data/mysql
type: DirectoryOrCreate
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🛠️ Refactor suggestion

Add recommended PV configurations

The PV configuration is missing several important properties for better management and reliability.

Add the following configurations:

 apiVersion: v1
 kind: PersistentVolume
 metadata:
   name: mysql-pv
   namespace: bankapp-namespace
+  labels:
+    type: local
+    app: mysql
 spec:
   capacity:
     storage: 10Gi
   volumeMode: Filesystem
   accessModes:
     - ReadWriteOnce
   persistentVolumeReclaimPolicy: Retain
   storageClassName: standard
+  nodeAffinity:
+    required:
+      nodeSelectorTerms:
+      - matchExpressions:
+        - key: kubernetes.io/hostname
+          operator: In
+          values:
+          - <node-name>

Committable suggestion skipped: line range outside the PR's diff.

Comment on lines 1 to 34
apiVersion: apps/v1
kind: Deployment
metadata:
name: mysql
namespace: bankapp-namespace
labels:
app: mysql
spec:
replicas: 1
selector:
matchLabels:
app: mysql
template:
metadata:
labels:
app: mysql
spec:
containers:
- name: mysql
image: mysql:latest
ports:
- containerPort: 3306
env:
- name: MYSQL_ROOT_PASSWORD
value: Test@123
- name: MYSQL_DATABASE
value: BankDB
volumeMounts:
- name: mysql-pv-storage
mountPath: /var/lib/mysql
volumes:
- name: mysql-pv-storage
persistentVolumeClaim:
claimName: mysql-pvc
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🛠️ Refactor suggestion

Add pod anti-affinity and backup strategy

The deployment is missing crucial high-availability configurations.

Add the following configurations:

 spec:
   template:
     spec:
+      affinity:
+        podAntiAffinity:
+          preferredDuringSchedulingIgnoredDuringExecution:
+          - weight: 100
+            podAffinityTerm:
+              labelSelector:
+                matchExpressions:
+                - key: app
+                  operator: In
+                  values:
+                  - mysql
+              topologyKey: kubernetes.io/hostname
+      initContainers:
+      - name: init-mysql
+        image: mysql:8.0
+        command: ['bash', '-c', 'echo "Checking for previous mysql data"; ls -la /var/lib/mysql/']
+        volumeMounts:
+        - name: mysql-persistent-storage
+          mountPath: /var/lib/mysql

Also, consider implementing a backup strategy using tools like:

  • Velero for cluster-wide backups
  • MySQL-specific backup solutions (e.g., mysqldump in CronJob)

Would you like me to provide a sample backup CronJob configuration?

Committable suggestion skipped: line range outside the PR's diff.

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Actionable comments posted: 10

🧹 Nitpick comments (4)
kubernetes/README.md (2)

11-37: Consider production-grade EKS configurations.

The current cluster configuration has several potential issues for production use:

  1. t2.medium instances have limited resources and no burstable CPU credits for production workloads
  2. Fixed node count (2) without autoscaling limits flexibility
  3. SSH access enabled by default poses a security risk
  4. EKS version 1.31 should be verified as the latest stable version

Consider these production-ready configurations:

 eksctl create cluster --name=bankapp \
                     --region=ap-south-1 \
-                    --version=1.31 \
+                    --version=1.28 \
                     --without-nodegroup

 eksctl create nodegroup --cluster=bankapp \
                      --region=ap-south-1 \
                      --name=bankapp \
-                     --node-type=t2.medium \
+                     --node-type=t3.large \
-                     --nodes=2 \
-                     --nodes-min=2 \
-                     --nodes-max=2 \
+                     --nodes=3 \
+                     --nodes-min=3 \
+                     --nodes-max=6 \
                      --node-volume-size=29 \
-                     --ssh-access \
-                     --ssh-public-key=k8s-in-one-shot
+                     --enable-cluster-autoscaler \
+                     --asg-access

80-82: Add language specifiers to code blocks.

Add language specifiers to the code blocks for better syntax highlighting:

-  ```
+  ```plaintext
   http://<public-ip-of-worker-node>:<NodePort>
  • https://junoon.trainwithshubham.com
    


Also applies to: 222-224

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</details>

</details>

</blockquote></details>
<details>
<summary>kubernetes/mysql-deployment.yml (1)</summary><blockquote>

`9-9`: **Consider high availability setup for production**

Using a single replica for a production database could lead to availability issues. Consider implementing a MySQL cluster or replication setup for high availability.

</blockquote></details>
<details>
<summary>kubernetes/bankapp-deployment.yml (1)</summary><blockquote>

`44-55`: **Enhance probe configuration with timeout and failure thresholds**

The health check configuration needs additional parameters for better reliability:

Apply these improvements:

```diff
        readinessProbe:
          httpGet:
-            path: /actuator/health  # Update this based on your app's health endpoint
+            path: /actuator/health
             port: 8080
           initialDelaySeconds: 10
           periodSeconds: 5
+          timeoutSeconds: 3
+          failureThreshold: 3
         livenessProbe:
           httpGet:
-            path: /actuator/health  # Update this based on your app's health endpoint
+            path: /actuator/health
             port: 8080
           initialDelaySeconds: 30
           periodSeconds: 10
+          timeoutSeconds: 3
+          failureThreshold: 3
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📒 Files selected for processing (5)
  • kubernetes/README.md (1 hunks)
  • kubernetes/bankapp-deployment.yml (1 hunks)
  • kubernetes/bankapp-ingress.yml (1 hunks)
  • kubernetes/letsencrypt-clusterissuer.yaml (1 hunks)
  • kubernetes/mysql-deployment.yml (1 hunks)
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🔇 Additional comments (8)
kubernetes/README.md (1)

215-224: Enhance verification steps with comprehensive checks.

The current verification steps are basic. Add these comprehensive checks:

  1. Check application health:
# Check pod health
kubectl get pods -n bankapp-namespace -o wide

# Check service endpoints
kubectl get endpoints -n bankapp-namespace

# Verify ingress configuration
kubectl describe ingress -n bankapp-namespace

# Check certificate status
kubectl get certificates,certificaterequests -n bankapp-namespace

# View application logs
kubectl logs -n bankapp-namespace -l app=bankapp --tail=100

# Monitor resource usage
kubectl top pods -n bankapp-namespace
  1. Add monitoring setup instructions (Prometheus/Grafana)
  2. Include logging setup instructions (EFK/ELK stack)
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kubernetes/letsencrypt-clusterissuer.yaml (2)

8-8: Consider using an organizational email address

The current configuration uses what appears to be a personal email address. For production systems, it's recommended to use an organizational email address to ensure continuity of certificate notifications when team members change.


6-14: Consider adding rate limiting annotations

The ClusterIssuer configuration looks good, but consider adding rate limiting annotations to prevent potential abuse:

metadata:
  name: letsencrypt-prod
+ annotations:
+   cert-manager.io/max-concurrent-challenges: "2"
spec:
  acme:

Also, verify that cert-manager is installed in the cluster:

kubernetes/bankapp-ingress.yml (1)

8-8: Verify the requirement for 50MB request body size

The current configuration allows for large request bodies (50MB). This seems excessive for a banking application and could pose security risks. Consider reducing this limit unless there's a specific requirement.

kubernetes/mysql-deployment.yml (2)

24-33: Verify secret and configmap existence

Ensure that the referenced secrets and configmaps exist:

✅ Verification successful

Since we're in a sandbox environment without access to kubectl or a Kubernetes cluster, we should search the repository for the corresponding Kubernetes resource definitions to verify the existence of these resources.


Both the secret and configmap are properly defined in the repository

The verification shows that both resources are properly defined:

  • The mysql-secret Secret is defined in kubernetes/secrets.yaml and k8s/secrets.yml with the required MYSQL_ROOT_PASSWORD key
  • The bankapp-config ConfigMap is defined in kubernetes/configmap.yaml and k8s/configMap.yml with the required MYSQL_DATABASE key

Both resources are correctly defined in the same namespace (bankapp-namespace) as the deployment that references them.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check if the required secret exists
kubectl get secret mysql-secret -n bankapp-namespace

# Check if the required configmap exists
kubectl get configmap bankapp-config -n bankapp-namespace

# Verify the required keys exist in the configmap
kubectl get configmap bankapp-config -n bankapp-namespace -o jsonpath='{.data.MYSQL_DATABASE}'

Length of output: 505


Script:

#!/bin/bash
# Search for mysql-secret definition
echo "=== Searching for mysql-secret definition ==="
rg -l "kind:\s*Secret.*mysql-secret" --type yaml
rg "name:\s*mysql-secret" -A 5 -B 5 --type yaml

echo -e "\n=== Searching for bankapp-config definition ==="
# Search for bankapp-config ConfigMap definition
rg -l "kind:\s*ConfigMap.*bankapp-config" --type yaml
rg "name:\s*bankapp-config" -A 5 -B 5 --type yaml

Length of output: 11180


34-41: Consider backup strategy

The persistent volume setup looks good, but there's no evident backup strategy. Consider implementing periodic backups using tools like Velero or a MySQL-specific backup solution.

Also, verify the PVC configuration:

✅ Verification successful

Backup strategy recommendation is valid, PVC configuration is correct

The PVC configuration for mysql-pvc is properly defined with appropriate specifications (10Gi storage, ReadWriteOnce access mode). However, there are no backup solutions implemented in the Kubernetes configurations, making the original recommendation about implementing periodic backups valid and important for data safety.

  • The PVC is correctly referenced in the mysql-deployment.yml
  • No backup configurations (CronJobs, Velero resources, or other backup tools) were found in the YAML files
  • Consider implementing one of these solutions:
    • Velero for cluster-wide backups
    • MySQL-specific backup solution using CronJobs
    • Cloud-native backup solutions if running on cloud providers
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check if the PVC exists and its status
kubectl get pvc mysql-pvc -n bankapp-namespace

Length of output: 146


Script:

#!/bin/bash
# Let's check the PVC configuration in the repository
rg -A 5 "kind:\s*PersistentVolumeClaim" --type yaml

# Also check for any backup-related configurations
rg -i "backup|velero" --type yaml

Length of output: 1237


Script:

#!/bin/bash
# Let's check the complete PVC configuration for mysql-pvc
cat kubernetes/persistent-volume-claim.yaml

# Also check if there are any other backup-related configurations in the repository
fd . -e yaml -e yml --exec grep -l -i "backup\|cronjob\|schedule"

Length of output: 332

kubernetes/bankapp-deployment.yml (2)

56-62: Verify resource limits against application requirements

The current resource configuration needs validation:

  • Memory: 512Mi request, 1Gi limit
  • CPU: 250m request, 500m limit

Please confirm these values are sufficient based on:

  1. Application's actual resource usage patterns
  2. Load testing results
  3. Production performance requirements

Also, consider adding a HorizontalPodAutoscaler:

apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
  name: bankapp-hpa
  namespace: bankapp-namespace
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: bankapp-deploy
  minReplicas: 2
  maxReplicas: 5
  metrics:
  - type: Resource
    resource:
      name: cpu
      target:
        type: Utilization
        averageUtilization: 80

23-43: 🛠️ Refactor suggestion

Verify ConfigMap and Secret existence, consider using volumes for sensitive data

The current environment variable configuration needs verification and security improvements.

Let's verify the existence of required ConfigMap and Secret:

Consider mounting secrets as files instead of environment variables:

spec:
  containers:
  - name: bankapp
    volumeMounts:
    - name: db-creds
      mountPath: "/etc/bankapp/secrets"
      readOnly: true
  volumes:
  - name: db-creds
    secret:
      secretName: mysql-secret
✅ Verification successful

Required ConfigMap and Secret exist, but security improvements recommended

Both bankapp-config ConfigMap and mysql-secret Secret are properly defined in multiple locations:

  • ConfigMap in kubernetes/configmap.yaml, k8s/configMap.yml, and Helm templates
  • Secret in kubernetes/secrets.yaml, k8s/secrets.yml, and Helm templates

While the dependencies exist, consider these security improvements:

  • Mount database credentials as files using volumes instead of environment variables to reduce exposure
  • Use Kubernetes Secrets CSI Driver or external secrets management solutions for enhanced security
  • Implement proper RBAC policies to restrict access to these resources
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check for required ConfigMap and Secret in the manifest files
echo "Checking for ConfigMap 'bankapp-config'..."
rg -l "kind:\s+ConfigMap.*name:\s+bankapp-config" --type yaml

echo "Checking for Secret 'mysql-secret'..."
rg -l "kind:\s+Secret.*name:\s+mysql-secret" --type yaml

Length of output: 314


Script:

#!/bin/bash
# Let's try a broader search to find any ConfigMap and Secret definitions
echo "Searching for ConfigMap definitions..."
rg "kind:\s*ConfigMap" --type yaml -A 5

echo -e "\nSearching for Secret definitions..."
rg "kind:\s*Secret" --type yaml -A 5

echo -e "\nSearching for any mentions of bankapp-config..."
rg "bankapp-config" --type yaml

echo -e "\nSearching for any mentions of mysql-secret..."
rg "mysql-secret" --type yaml

Length of output: 3362

Comment on lines +65 to +82
### **Change ArgoCD Server Service Type to NodePort**
```bash
kubectl patch svc argocd-server -n argocd -p '{"spec": {"type": "NodePort"}}'
```

### **Verify the NodePort Service**
```bash
kubectl get svc -n argocd
```

### **Expose the Port on Security Groups**
- In the AWS Console, update the security group for your EKS worker nodes to allow inbound traffic on the NodePort assigned to the `argocd-server` service.

### **Access the ArgoCD Web UI**
- Open your browser and navigate to:
```
http://<public-ip-of-worker-node>:<NodePort>
```
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⚠️ Potential issue

Enhance ArgoCD security configuration.

Using NodePort to expose ArgoCD server is not recommended for production. Additionally, important security configurations are missing.

Consider these security enhancements:

  1. Use ALB Ingress instead of NodePort:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: argocd-server-ingress
  namespace: argocd
  annotations:
    kubernetes.io/ingress.class: alb
    alb.ingress.kubernetes.io/scheme: internet-facing
    alb.ingress.kubernetes.io/target-type: ip
    alb.ingress.kubernetes.io/listen-ports: '[{"HTTPS":443}]'
spec:
  rules:
    - host: argocd.yourdomain.com
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: argocd-server
                port:
                  number: 443
  1. Add resource limits to ArgoCD components:
kubectl patch deployment argocd-server -n argocd --type='json' -p='[{"op": "add", "path": "/spec/template/spec/containers/0/resources", "value": {"limits": {"memory": "1Gi", "cpu": "1000m"}, "requests": {"memory": "512Mi", "cpu": "500m"}}}]'
  1. Enable SSO integration instructions
  2. Add network policies to restrict access
🧰 Tools
🪛 Markdownlint (0.37.0)

80-80: null
Fenced code blocks should have a language specified

(MD040, fenced-code-language)

Comment on lines +93 to +111
### **Retrieve the Default Admin Password**
```bash
kubectl get secret argocd-initial-admin-secret -n argocd -o jsonpath="{.data.password}" | base64 -d
```

### **Check Available Clusters in ArgoCD**
```bash
argocd cluster list
```

### **Get the EKS Cluster Context**
```bash
kubectl config get-contexts
```

### **Add EKS Cluster to ArgoCD**
```bash
argocd cluster add <cluster-context-name> --name bankapp-eks-cluster
```
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⚠️ Potential issue

Add RBAC and security configurations for ArgoCD.

The current setup lacks critical security configurations needed for production use.

Add these security configurations:

  1. Change default admin password immediately after retrieval:
argocd account update-password
  1. Configure RBAC with project-specific roles:
apiVersion: argoproj.io/v1alpha1
kind: AppProject
metadata:
  name: bankapp-project
  namespace: argocd
spec:
  description: Banking Application Project
  sourceRepos:
    - 'git@github.com:DevMadhup/Springboot-BankApp.git'
  destinations:
    - namespace: bankapp-namespace
      server: https://kubernetes.default.svc
  roles:
    - name: developer
      description: Developer role
      policies:
        - p, proj:bankapp-project:developer, applications, get, bankapp-project/*, allow
        - p, proj:bankapp-project:developer, applications, sync, bankapp-project/*, allow
  1. Use declarative setup instead of CLI commands for cluster addition

Comment on lines +123 to +128
argocd app create bankapp \
--repo <your-git-repo-url> \
--path <path-to-manifests> \
--dest-server https://kubernetes.default.svc \
--dest-namespace bankapp-namespace
```
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🛠️ Refactor suggestion

Enhance application deployment configuration.

The current deployment configuration misses several important aspects for production readiness.

Add these configurations to your ArgoCD application:

apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  name: bankapp
  namespace: argocd
spec:
  project: bankapp-project
  source:
    repoURL: git@github.com:DevMadhup/Springboot-BankApp.git
    targetRevision: HEAD
    path: kubernetes/manifests
  destination:
    server: https://kubernetes.default.svc
    namespace: bankapp-namespace
  syncPolicy:
    automated:
      prune: true
      selfHeal: true
    syncOptions:
      - CreateNamespace=true
  ignoreDifferences:
    - group: apps
      kind: Deployment
      jsonPointers:
        - /spec/replicas

Also consider:

  1. Using Sealed Secrets or External Secrets for sensitive data
  2. Implementing health checks and readiness probes
  3. Setting up proper resource quotas

Comment on lines +144 to +162
### **Install NGINX Ingress Controller Using Helm**
```bash
helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx
helm repo update
helm install ingress-nginx ingress-nginx/ingress-nginx \
--namespace ingress-nginx --create-namespace
```

### **Verify Installation**
Check if the NGINX Ingress Controller pods are running:
```bash
kubectl get pods -n ingress-nginx
```

### **Retrieve the Load Balancer IP**
Get the external IP assigned to the NGINX Ingress Controller:
```bash
kubectl get svc -n ingress-nginx
```
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🛠️ Refactor suggestion

Enhance NGINX Ingress Controller security configuration.

The current setup lacks important security configurations for the ingress controller.

Add these security enhancements:

apiVersion: v1
kind: ConfigMap
metadata:
  name: ingress-nginx-controller
  namespace: ingress-nginx
data:
  use-forwarded-headers: "true"
  enable-modsecurity: "true"
  enable-owasp-modsecurity-crs: "true"
  ssl-protocols: "TLSv1.2 TLSv1.3"
  ssl-ciphers: "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256"
  proxy-body-size: "10m"
  proxy-connect-timeout: "10"
  proxy-read-timeout: "60"
  client-header-timeout: "60"
  client-body-timeout: "60"
  hide-headers: "Server"

Also consider:

  1. Implementing rate limiting
  2. Adding WAF rules
  3. Setting up monitoring with Prometheus metrics

Comment on lines +179 to +193
apiVersion: cert-manager.io/v1
kind: ClusterIssuer
metadata:
name: letsencrypt-prod
spec:
acme:
server: https://acme-v02.api.letsencrypt.org/directory
email: your-email@example.com
privateKeySecretRef:
name: letsencrypt-prod-key
solvers:
- http01:
ingress:
class: nginx
```
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🛠️ Refactor suggestion

Implement proper SSL/TLS configuration workflow.

The current setup jumps directly to the Let's Encrypt production environment without proper testing.

  1. First test with Let's Encrypt staging:
 spec:
   acme:
-    server: https://acme-v02.api.letsencrypt.org/directory
+    server: https://acme-staging-v02.api.letsencrypt.org/directory
     email: your-email@example.com
  1. Add proper annotations for SSL configuration:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  annotations:
    cert-manager.io/cluster-issuer: "letsencrypt-prod"
    nginx.ingress.kubernetes.io/ssl-redirect: "true"
    nginx.ingress.kubernetes.io/force-ssl-redirect: "true"
    nginx.ingress.kubernetes.io/ssl-passthrough: "true"
    nginx.ingress.kubernetes.io/backend-protocol: "HTTPS"
  1. Monitor certificate expiration and implement auto-renewal testing

Comment on lines +6 to +10
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /
nginx.ingress.kubernetes.io/proxy-body-size: "50m"
nginx.ingress.kubernetes.io/ssl-redirect: "true" # Force HTTPS
cert-manager.io/cluster-issuer: letsencrypt-prod # Use Let's Encrypt
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🛠️ Refactor suggestion

Add security-related headers

Consider adding security headers to enhance the application's security posture:

  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
    nginx.ingress.kubernetes.io/proxy-body-size: "50m"
    nginx.ingress.kubernetes.io/ssl-redirect: "true"
    cert-manager.io/cluster-issuer: letsencrypt-prod
+   nginx.ingress.kubernetes.io/configuration-snippet: |
+     more_set_headers "X-Frame-Options: DENY";
+     more_set_headers "X-Content-Type-Options: nosniff";
+     more_set_headers "X-XSS-Protection: 1; mode=block";
+   nginx.ingress.kubernetes.io/proxy-connect-timeout: "60"
+   nginx.ingress.kubernetes.io/proxy-read-timeout: "60"
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /
nginx.ingress.kubernetes.io/proxy-body-size: "50m"
nginx.ingress.kubernetes.io/ssl-redirect: "true" # Force HTTPS
cert-manager.io/cluster-issuer: letsencrypt-prod # Use Let's Encrypt
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /
nginx.ingress.kubernetes.io/proxy-body-size: "50m"
nginx.ingress.kubernetes.io/ssl-redirect: "true" # Force HTTPS
cert-manager.io/cluster-issuer: letsencrypt-prod # Use Let's Encrypt
nginx.ingress.kubernetes.io/configuration-snippet: |
more_set_headers "X-Frame-Options: DENY";
more_set_headers "X-Content-Type-Options: nosniff";
more_set_headers "X-XSS-Protection: 1; mode=block";
nginx.ingress.kubernetes.io/proxy-connect-timeout: "60"
nginx.ingress.kubernetes.io/proxy-read-timeout: "60"

Comment on lines +24 to +27
service:
name: bankapp-service
port:
number: 8080
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💡 Codebase verification

Service configuration needs adjustment

The service selector doesn't match the ingress configuration. Current issues:

  • The service exists with correct port 8080, but its selector app: bankapp-deploy matches the deployment labels
  • The service's own label is app: bankapp which doesn't match its selector

Locations needing attention:

  • kubernetes/bankapp-service.yaml: Update the service's label to app: bankapp-deploy to maintain consistency
  • kubernetes/bankapp-ingress.yml: The service reference is correct, but ensure the service is properly labeled
🔗 Analysis chain

Verify service configuration

Ensure that the referenced service exists and is properly configured:

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check if the service exists in the specified namespace
kubectl get svc bankapp-service -n bankapp-namespace

# Verify the service port configuration
kubectl get svc bankapp-service -n bankapp-namespace -o jsonpath='{.spec.ports[*].port}'

Length of output: 341


Script:

#!/bin/bash
# Let's check for the service configuration in the Kubernetes manifests
fd ".*service.*\.ya?ml$" | xargs cat

# Also check for any port 8080 configurations in yaml files
fd ".*\.ya?ml$" | xargs grep -l "port.*8080" || true

Length of output: 2235


Script:

#!/bin/bash
# Let's check the deployment configuration to ensure service selector matches
cat kubernetes/bankapp-deployment.yml

# Also check the service configuration in the same directory
cat kubernetes/bankapp-service.yaml

Length of output: 2028

Comment on lines +18 to +23
containers:
- name: mysql
image: mysql:8.0 # Use a specific, stable version for production
ports:
- containerPort: 3306
env:
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🛠️ Refactor suggestion

Add resource limits and health checks

The container specification should include resource limits and health checks:

    spec:
      containers:
      - name: mysql
        image: mysql:8.0
+       resources:
+         requests:
+           memory: "1Gi"
+           cpu: "500m"
+         limits:
+           memory: "2Gi"
+           cpu: "1000m"
+       livenessProbe:
+         tcpSocket:
+           port: 3306
+         initialDelaySeconds: 30
+         periodSeconds: 10
+       readinessProbe:
+         tcpSocket:
+           port: 3306
+         initialDelaySeconds: 5
+         periodSeconds: 2
        ports:
        - containerPort: 3306
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
containers:
- name: mysql
image: mysql:8.0 # Use a specific, stable version for production
ports:
- containerPort: 3306
env:
containers:
- name: mysql
image: mysql:8.0 # Use a specific, stable version for production
resources:
requests:
memory: "1Gi"
cpu: "500m"
limits:
memory: "2Gi"
cpu: "1000m"
livenessProbe:
tcpSocket:
port: 3306
initialDelaySeconds: 30
periodSeconds: 10
readinessProbe:
tcpSocket:
port: 3306
initialDelaySeconds: 5
periodSeconds: 2
ports:
- containerPort: 3306
env:

Comment on lines +1 to +13
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: bankapp-deploy
name: bankapp-deploy
namespace: bankapp-namespace
spec:
replicas: 2 # Keep replicas >= 2 for high availability
selector:
matchLabels:
app: bankapp-deploy
template:
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🛠️ Refactor suggestion

Add deployment strategy and PodDisruptionBudget for high availability

While the replica count of 2 provides basic HA, consider enhancing the deployment configuration:

  1. Add an explicit deployment strategy
  2. Define a PodDisruptionBudget to ensure minimum availability during node maintenance

Add the following configuration:

spec:
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxSurge: 1
      maxUnavailable: 0
---
apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
  name: bankapp-pdb
  namespace: bankapp-namespace
spec:
  minAvailable: 1
  selector:
    matchLabels:
      app: bankapp-deploy

Comment on lines 18 to 22
containers:
- name: bankapp
image: trainwithshubham/bankapp-eks:v1
ports:
- containerPort: 8080
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🛠️ Refactor suggestion

Enhance container security and image handling

The container configuration needs security improvements and better image handling practices:

  1. Add security context to run as non-root
  2. Define imagePullPolicy
  3. Consider using digest instead of tag for immutable deployments

Apply these changes:

spec:
  containers:
  - name: bankapp
    image: trainwithshubham/bankapp-eks@sha256:<digest>  # Replace with actual digest
    imagePullPolicy: IfNotPresent
    securityContext:
      runAsNonRoot: true
      runAsUser: 1000
      allowPrivilegeEscalation: false
      capabilities:
        drop:
          - ALL

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Actionable comments posted: 6

🧹 Nitpick comments (1)
kubernetes/README.md (1)

27-37: Enhance EKS cluster configuration for production readiness.

The current node group configuration needs improvements:

  1. t2.medium instances have limited resources and burst credits - consider using t3.medium or larger instance types for production
  2. Hardcoded SSH key name k8s-in-one-shot should be parameterized
  3. Missing important configurations for production deployments

Consider adding these configurations to the eksctl command:

 eksctl create nodegroup --cluster=bankapp \
                      --region=ap-south-1 \
                      --name=bankapp \
-                     --node-type=t2.medium \
+                     --node-type=t3.medium \
                      --nodes=2 \
                      --nodes-min=2 \
                      --nodes-max=2 \
                      --node-volume-size=29 \
                      --ssh-access \
-                     --ssh-public-key=k8s-in-one-shot
+                     --ssh-public-key=${SSH_KEY_NAME} \
+                     --vpc-private-subnets=subnet-1,subnet-2 \
+                     --vpc-nat-mode=HighlyAvailable \
+                     --asg-access \
+                     --external-dns-access \
+                     --full-ecr-access \
+                     --alb-ingress-access
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📒 Files selected for processing (1)
  • kubernetes/README.md (1 hunks)
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kubernetes/README.md

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222-222: null
Fenced code blocks should have a language specified

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🔇 Additional comments (1)
kubernetes/README.md (1)

152-156: 🛠️ Refactor suggestion

Enhance ingress controller verification steps.

The current verification only checks pod status.

Add these verification steps:

 kubectl get pods -n ingress-nginx
+
+# Verify the controller service
+kubectl get svc -n ingress-nginx
+
+# Check controller logs
+kubectl logs -n ingress-nginx deploy/ingress-nginx-controller
+
+# Verify ingress class
+kubectl get ingressclass
+
+# Test the controller
+curl -I http://<EXTERNAL-IP>

Likely invalid or redundant comment.

Comment on lines +221 to +224
- Open your browser and navigate to:
```
https://junoon.trainwithshubham.com
```
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🛠️ Refactor suggestion

Add comprehensive application verification steps and fix code block formatting.

The current verification lacks important checks, and code blocks are missing language specifiers.

  1. Add these verification steps:
+# Check application logs
+kubectl logs -l app=bankapp -n bankapp-namespace
+
+# Check application endpoints
+kubectl get endpoints -n bankapp-namespace
+
+# Verify application health
+curl -I https://junoon.trainwithshubham.com/health
+
 # Access the application
-https://junoon.trainwithshubham.com
+curl https://junoon.trainwithshubham.com
  1. Fix code block formatting by adding language specifiers:
-- ```
+- ```bash
   https://junoon.trainwithshubham.com

<details>
<summary>🧰 Tools</summary>

<details>
<summary>🪛 Markdownlint (0.37.0)</summary>

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</details>

<!-- This is an auto-generated comment by CodeRabbit -->

Comment on lines +240 to +243
### **Apply HPA**
```bash
kubectl apply -f bankapp-hpa.yml
```
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🛠️ Refactor suggestion

Add HPA configuration example and monitoring steps.

The current section lacks HPA configuration details and monitoring steps.

  1. Add HPA configuration example:
# bankapp-hpa.yml
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
  name: bankapp-hpa
  namespace: bankapp-namespace
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: bankapp
  minReplicas: 2
  maxReplicas: 5
  metrics:
  - type: Resource
    resource:
      name: cpu
      target:
        type: Utilization
        averageUtilization: 80
  1. Add monitoring steps:
# Monitor HPA status
kubectl get hpa -n bankapp-namespace
kubectl describe hpa bankapp-hpa -n bankapp-namespace

# Monitor scaling events
kubectl get events -n bankapp-namespace --field-selector reason=ScalingReplicaSet

# Test autoscaling
kubectl run -i --tty load-generator --rm --image=busybox:1.28 --restart=Never -- /bin/sh -c "while sleep 0.01; do wget -q -O- http://bankapp-service; done"

Comment on lines +206 to +209
### **Verify Certificate Issuance**
```bash
kubectl get certificate -n bankapp-namespace
```
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🛠️ Refactor suggestion

Add comprehensive certificate validation steps.

The current verification only checks certificate existence.

Add these validation steps:

 kubectl get certificate -n bankapp-namespace
+
+# Check certificate details
+kubectl describe certificate -n bankapp-namespace
+
+# Verify certificate manager status
+kubectl get certificaterequest -n bankapp-namespace
+kubectl get order.acme.cert-manager.io -n bankapp-namespace
+kubectl get challenge.acme.cert-manager.io -n bankapp-namespace
+
+# Test SSL/TLS configuration
+curl -vI https://junoon.trainwithshubham.com
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
### **Verify Certificate Issuance**
```bash
kubectl get certificate -n bankapp-namespace
```
### **Verify Certificate Issuance**

Comment on lines +108 to +111
### **Add EKS Cluster to ArgoCD**
```bash
argocd cluster add <cluster-context-name> --name bankapp-eks-cluster
```
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🛠️ Refactor suggestion

Enhance cluster addition with production-ready configurations.

The current cluster addition command lacks important flags for production use.

Enhance the cluster addition command:

-argocd cluster add <cluster-context-name> --name bankapp-eks-cluster
+argocd cluster add <cluster-context-name> \
+  --name bankapp-eks-cluster \
+  --namespace argocd \
+  --project default \
+  --config-management-plugin argocd-vault-plugin \
+  --helm-version v3 \
+  --system-namespace kube-system
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
### **Add EKS Cluster to ArgoCD**
```bash
argocd cluster add <cluster-context-name> --name bankapp-eks-cluster
```
### **Add EKS Cluster to ArgoCD**

Comment on lines +135 to +138
### **Monitor Application Status**
```bash
argocd app list
```
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🛠️ Refactor suggestion

Add comprehensive application health verification steps.

The current monitoring step only checks the application list.

Add these verification commands:

 argocd app list
+
+# Check application health and sync status
+argocd app get bankapp
+
+# View application logs
+argocd app logs bankapp
+
+# Check application resources
+argocd app resources bankapp
+
+# View application events
+kubectl get events -n bankapp-namespace
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
### **Monitor Application Status**
```bash
argocd app list
```
### **Monitor Application Status**

Comment on lines +59 to +63
```bash
curl --silent --location -o /usr/local/bin/argocd https://github.com/argoproj/argo-cd/releases/download/v2.4.7/argocd-linux-amd64
chmod +x /usr/local/bin/argocd
argocd version
```
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🛠️ Refactor suggestion

Verify ArgoCD CLI installation and consider version updates.

The current installation:

  1. Uses a specific version (v2.4.7) which might be outdated
  2. Lacks checksum verification for the downloaded binary

Enhance the installation steps:

-curl --silent --location -o /usr/local/bin/argocd https://github.com/argoproj/argo-cd/releases/download/v2.4.7/argocd-linux-amd64
+ARGOCD_VERSION=$(curl --silent "https://api.github.com/repos/argoproj/argo-cd/releases/latest" | grep '"tag_name"' | sed -E 's/.*"([^"]+)".*/\1/')
+curl --silent --location -o /usr/local/bin/argocd https://github.com/argoproj/argo-cd/releases/download/${ARGOCD_VERSION}/argocd-linux-amd64
+curl --silent --location -o /tmp/argocd.sha256 https://github.com/argoproj/argo-cd/releases/download/${ARGOCD_VERSION}/argocd-linux-amd64.sha256
+echo "$(cat /tmp/argocd.sha256) /usr/local/bin/argocd" | sha256sum --check
 chmod +x /usr/local/bin/argocd
 argocd version

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Actionable comments posted: 0

🔭 Outside diff range comments (1)
Jenkinsfile (1)

Line range hint 82-85: Maintain consistent naming convention

While the Docker image and SonarQube project names have been updated to lowercase "bankapp", the CD job name still uses the old "BankApp-CD" format.

Consider updating the CD job name for consistency:

-            build job: "BankApp-CD", parameters: [
+            build job: "bankapp-cd", parameters: [
♻️ Duplicate comments (1)
kubernetes/bankapp-ingress.yml (1)

6-10: 🛠️ Refactor suggestion

Enhance security and reliability configurations

  1. Add security headers as previously suggested
  2. Consider adding rate limiting to prevent DoS attacks
  3. Add timeout configurations for better reliability

Apply these additional annotations:

  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
    nginx.ingress.kubernetes.io/proxy-body-size: "50m"
    nginx.ingress.kubernetes.io/ssl-redirect: "true"
    cert-manager.io/cluster-issuer: letsencrypt-prod
+   nginx.ingress.kubernetes.io/configuration-snippet: |
+     more_set_headers "X-Frame-Options: DENY";
+     more_set_headers "X-Content-Type-Options: nosniff";
+     more_set_headers "X-XSS-Protection: 1; mode=block";
+   nginx.ingress.kubernetes.io/limit-rps: "10"
+   nginx.ingress.kubernetes.io/proxy-connect-timeout: "60"
+   nginx.ingress.kubernetes.io/proxy-read-timeout: "60"
+   nginx.ingress.kubernetes.io/proxy-send-timeout: "60"
🧹 Nitpick comments (3)
kubernetes/bankapp-hpa.yml (3)

11-12: Consider documenting scaling decisions.

While the replica range (1-5) is reasonable for basic setups, it would be beneficial to document:

  • Expected load patterns
  • Peak usage requirements
  • Cost implications of the scaling configuration

13-19: Consider enhancing metrics configuration.

The current configuration could be improved by:

  1. Adding memory-based scaling metrics
  2. Configuring behavior (scale-up/down windows) to prevent thrashing
  3. Reviewing if 40% CPU utilization is the optimal threshold for your workload

Example enhancement:

  metrics:
  - type: Resource
    resource:
      name: cpu
      target:
        type: Utilization
        averageUtilization: 40
+ - type: Resource
+   resource:
+     name: memory
+     target:
+       type: Utilization
+       averageUtilization: 80
+ behavior:
+   scaleDown:
+     stabilizationWindowSeconds: 300
+   scaleUp:
+     stabilizationWindowSeconds: 60

1-19: Consider implementing a comprehensive monitoring strategy.

Since this HPA controls the scaling of a banking application:

  1. Set up proper monitoring and alerting for scaling events
  2. Consider implementing custom metrics for business-specific scaling (e.g., transaction rate)
  3. Document the scaling behavior in your runbooks
  4. Plan for disaster recovery scenarios with scaled deployments
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 90fa99a and 9c56836.

📒 Files selected for processing (7)
  • GitOps/Jenkinsfile (5 hunks)
  • Jenkinsfile (3 hunks)
  • k8s/README.md (0 hunks)
  • k8s/configMap.yml (0 hunks)
  • k8s/ingress.yml (0 hunks)
  • kubernetes/bankapp-hpa.yml (1 hunks)
  • kubernetes/bankapp-ingress.yml (1 hunks)
💤 Files with no reviewable changes (3)
  • k8s/configMap.yml
  • k8s/ingress.yml
  • k8s/README.md
🚧 Files skipped from review as they are similar to previous changes (1)
  • GitOps/Jenkinsfile
🔇 Additional comments (8)
kubernetes/bankapp-ingress.yml (2)

1-5: LGTM! Basic Ingress configuration is correct.

The Ingress resource is properly configured with the latest API version and appropriate namespace.


11-27: Verify service configuration and TLS setup

While the Ingress configuration looks correct, please ensure:

  1. The referenced bankapp-service exists and is properly configured
  2. The bankapp-tls-secret will be properly managed by cert-manager

Let's verify the service configuration:

#!/bin/bash
# Check if the service configuration exists and matches the Ingress
fd -t f ".*service.*\.ya?ml$" | xargs grep -l "name: bankapp-service" || true

# Check if the service port configuration matches
fd -t f ".*service.*\.ya?ml$" | xargs grep -A 5 "port: 8080" || true

# Check if the deployment labels match the service selector
fd -t f ".*deployment.*\.ya?ml$" | xargs grep -A 5 "app: bankapp-deploy" || true
Jenkinsfile (3)

50-50: ⚠️ Potential issue

Verify SonarQube project configuration update

The SonarQube project key has been changed from "BankApp" to "bankapp". This change requires corresponding updates in the SonarQube server configuration.

Please ensure:

  1. The new project key "bankapp" is configured in SonarQube
  2. Quality gates and rules are properly migrated
  3. Historical analysis data is preserved if needed

66-66: ⚠️ Potential issue

Verify Docker image naming impact on deployments

The Docker image name has been changed from "BankApp" to "bankapp". This change affects both build and push stages and requires careful coordination with deployment configurations.

Required actions:

  1. Update all Kubernetes manifests and deployment configs to use the new image name
  2. Consider implementing a transition strategy to avoid deployment disruptions
  3. Update any CI/CD scripts that might be referencing the old image name

Also applies to: 74-74

✅ Verification successful

I'm broadening the search to:

  1. Case-insensitive search for both old and new image names
  2. Looking for Docker-related files
  3. Finding any kubernetes manifest files that might exist

This will help us better understand the deployment configuration landscape and verify the impact of the image name change.


Docker image name change is consistent with existing configurations

The change from "BankApp" to "bankapp" in the Jenkinsfile aligns with the existing configurations. The search results show that:

  1. All Kubernetes manifests and Helm charts already use lowercase "bankapp" in their configurations
  2. The Docker Compose file uses both "bankapp" and "Bankapp", but for container naming which is separate from image references
  3. The actual image references in deployment files (e.g., kubernetes/bankapp-deployment.yml) use lowercase naming convention

No changes to deployment configurations are required as they are already following the lowercase naming convention that this change introduces.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check for references to the old Docker image name in k8s manifests and other configs
rg -l "BankApp" --type yaml

Length of output: 27


Script:

#!/bin/bash
# Let's search for any Docker image references in yaml, json, and other config files
rg -i "bankapp|BankApp" -g "*.{yaml,yml,json,properties,xml,conf}"

# Also check for any Docker-related files
fd "Dockerfile|docker-compose"

# Search for any k8s deployment files
fd -e yaml -e yml

Length of output: 6471


26-26: Verify upstream repository synchronization strategy

The repository URL has been changed to point to a fork. Ensure there's a strategy in place to keep the fork synchronized with the upstream repository to prevent drift.

kubernetes/bankapp-hpa.yml (3)

1-2: LGTM! Using the stable API version.

The configuration uses the stable autoscaling/v2 API version, which is the recommended choice for production deployments.


3-5: Verify namespace existence.

Ensure that the bankapp-namespace exists before applying this configuration.

✅ Verification successful

Let me verify the namespace definition by checking its content:


Namespace configuration is properly defined

The bankapp-namespace is correctly defined in kubernetes/bankapp-namespace.yaml with proper apiVersion, kind, and metadata configuration. The namespace is also consistently referenced across multiple Kubernetes resources in both the kubernetes/ and helm/bankapp/templates/ directories.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Check if the namespace and related resources exist
# Check for namespace definition
echo "Checking for namespace definition..."
fd -e yml -e yaml | xargs grep -l "bankapp-namespace"

# Check for namespace creation in other K8s resources
echo "Checking for namespace references in other K8s resources..."
fd -e yml -e yaml | xargs grep -l "namespace: bankapp-namespace"

Length of output: 1494


Script:

#!/bin/bash
# Check the namespace definition file
echo "Content of namespace definition file:"
cat kubernetes/bankapp-namespace.yaml

Length of output: 229


7-10: Verify target deployment configuration.

The HPA requires the target deployment to exist and have CPU resource requests defined to function properly.

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Actionable comments posted: 1

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 9c56836 and 40cbb6c.

📒 Files selected for processing (1)
  • kubernetes/bankapp-deployment.yml (1 hunks)
🔇 Additional comments (5)
kubernetes/bankapp-deployment.yml (5)

8-12: Add deployment strategy and PodDisruptionBudget for high availability

While the replica count of 2 provides basic HA, the deployment still needs an explicit deployment strategy and PodDisruptionBudget.


18-22: Enhance container security and image handling

The container configuration needs security improvements and better image handling practices.


1-7: Verify namespace existence before deployment

The deployment targets the bankapp-namespace, but there's no guarantee this namespace exists in the cluster.

✅ Verification successful

Namespace is properly defined in the repository

The namespace bankapp-namespace is correctly defined in both:

  • kubernetes/bankapp-namespace.yaml: Direct Kubernetes manifest
  • helm/bankapp/templates/namespace.yml: Helm template with fallback to the same namespace

The deployment can safely reference this namespace as it will be created by either the direct Kubernetes manifest or the Helm chart deployment.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check if namespace definition exists in the repository
fd -e yaml -e yml | xargs grep -l "kind: Namespace.*name: bankapp-namespace"

Length of output: 78


Script:

#!/bin/bash
# Let's try a broader search to find any namespace-related configurations
fd -e yaml -e yml | xargs grep -l "bankapp-namespace"

Length of output: 880


Script:

#!/bin/bash
# Search for namespace definitions with a more flexible pattern
fd -e yaml -e yml | xargs grep -l "kind: Namespace"

Length of output: 124


Script:

#!/bin/bash
# List all YAML/YML files to ensure we're not missing anything
fd -e yaml -e yml

Length of output: 931


Script:

#!/bin/bash
# Let's check the content of the namespace files to verify they define the correct namespace
cat kubernetes/bankapp-namespace.yaml helm/bankapp/templates/namespace.yml

Length of output: 357


23-43: Verify ConfigMap and Secret references

The deployment references bankapp-config ConfigMap and mysql-secret Secret. Ensure these resources exist and contain the required keys.

✅ Verification successful

ConfigMap and Secret references are properly configured

Both bankapp-config ConfigMap and mysql-secret Secret exist in the Kubernetes manifests with all the required keys:

  • ConfigMap (kubernetes/configmap.yaml) contains:

    • MYSQL_DATABASE
    • SPRING_DATASOURCE_URL
    • SPRING_DATASOURCE_USERNAME
  • Secret (kubernetes/secrets.yaml) contains:

    • SPRING_DATASOURCE_PASSWORD

The resources are also properly templated in the Helm charts with corresponding values defined in values.yaml. All environment variables referenced in the deployment are properly mapped to their respective ConfigMap and Secret keys.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check for ConfigMap and Secret definitions
echo "Checking for ConfigMap definition..."
fd -e yaml -e yml | xargs grep -l "kind: ConfigMap.*name: bankapp-config"

echo "Checking for Secret definition..."
fd -e yaml -e yml | xargs grep -l "kind: Secret.*name: mysql-secret"

Length of output: 306


Script:

#!/bin/bash
# Let's try a different approach to find ConfigMap and Secret definitions
# First, let's find all YAML files
echo "=== Listing all YAML files ==="
fd -e yaml -e yml

echo -e "\n=== Searching for ConfigMap and Secret content ==="
# Search for ConfigMap content
echo "ConfigMap content:"
fd -e yaml -e yml | xargs grep -A 5 "kind:\s*ConfigMap" || true

# Search for Secret content
echo -e "\nSecret content:"
fd -e yaml -e yml | xargs grep -A 5 "kind:\s*Secret" || true

# Also search for references to these resources
echo -e "\n=== Searching for references to bankapp-config and mysql-secret ==="
fd -e yaml -e yml | xargs grep -l "bankapp-config\|mysql-secret" || true

Length of output: 3050


Script:

#!/bin/bash
# Let's verify the specific keys in ConfigMap and Secret
echo "=== Checking ConfigMap keys in kubernetes/configmap.yaml ==="
grep -A 10 "data:" kubernetes/configmap.yaml

echo -e "\n=== Checking Secret keys in kubernetes/secrets.yaml ==="
grep -A 10 "data:" kubernetes/secrets.yaml

# Let's also check if the values file defines these configurations
echo -e "\n=== Checking values.yaml for related configurations ==="
grep -A 10 "configmap:\|secret:" helm/bankapp/values.yaml

Length of output: 1426


56-62: Validate resource limits for Spring Boot application

The current memory limit of 1Gi might be too restrictive for a Spring Boot application, especially under load. Consider:

  1. Analyzing application memory usage patterns
  2. Adjusting limits based on actual usage metrics
  3. Account for JVM heap size and non-heap memory requirements

Comment on lines +44 to +55
# readinessProbe:
# httpGet:
# path: /actuator/health # Update this based on your app's health endpoint
# port: 8080
# initialDelaySeconds: 10
# periodSeconds: 5
# livenessProbe:
# httpGet:
# path: /actuator/health # Update this based on your app's health endpoint
# port: 8080
# initialDelaySeconds: 30
# periodSeconds: 10
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💡 Codebase verification

⚠️ Potential issue

Add Spring Boot Actuator and configure health probes

The application is a Spring Boot application but lacks both the actuator dependency and custom health endpoints. To properly implement health checks:

  1. Add the Spring Boot Actuator dependency to pom.xml:
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
  1. Uncomment and update the health probe configuration in kubernetes/bankapp-deployment.yml:
readinessProbe:
  httpGet:
    path: /actuator/health
    port: 8080
  initialDelaySeconds: 10
  periodSeconds: 5
livenessProbe:
  httpGet:
    path: /actuator/health
    port: 8080
  initialDelaySeconds: 30
  periodSeconds: 10
🔗 Analysis chain

Enable health probes and verify actuator endpoint

The health probes are commented out. These are crucial for proper pod lifecycle management in Kubernetes.

  1. Verify that the Spring Boot actuator is included in the application dependencies
  2. Uncomment and configure the probes appropriately
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check for Spring Boot actuator dependency in build files
echo "Checking for actuator dependency..."
fd pom.xml | xargs grep -l "spring-boot-starter-actuator"
fd build.gradle | xargs grep -l "spring-boot-starter-actuator"

Length of output: 201


Script:

#!/bin/bash
# Let's first check if this is a Spring Boot application by looking for Spring Boot dependencies
echo "Checking for Spring Boot dependencies..."
fd "pom\.xml|build\.gradle|build\.gradle\.kts" | xargs cat

# Also check if there's any application properties/yaml that might have actuator configuration
echo -e "\nChecking for application properties/yaml files..."
fd "application\.(properties|ya?ml)" | xargs cat

Length of output: 3275


Script:

#!/bin/bash
# Let's check if there's a custom health endpoint implementation
echo "Checking for custom health endpoint implementations..."
rg -l "HealthIndicator|/health" --type java

# Also check for any controller endpoints that might be used for health checks
echo -e "\nChecking for controller endpoints..."
ast-grep --pattern 'class $_ {
  $$$
  @GetMapping("/health")
  $$$
}'

Length of output: 326

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Actionable comments posted: 0

🧹 Nitpick comments (1)
kubernetes/bankapp-deployment.yml (1)

23-43: Consider enhancing database connection security

While the configuration properly uses ConfigMap and Secret for database credentials, consider:

  1. Adding TLS configuration for database connection
  2. Implementing connection pooling parameters
  3. Setting up retry policies for connection failures

Add these configurations to your ConfigMap:

env:
- name: SPRING_DATASOURCE_HIKARI_MAXIMUM_POOL_SIZE
  value: "10"
- name: SPRING_DATASOURCE_HIKARI_MINIMUM_IDLE
  value: "5"
- name: SPRING_DATASOURCE_SSL_ENABLED
  value: "true"
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 40cbb6c and 66c677d.

📒 Files selected for processing (2)
  • kubernetes/bankapp-deployment.yml (1 hunks)
  • kubernetes/bankapp-hpa.yml (1 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
  • kubernetes/bankapp-hpa.yml
🔇 Additional comments (5)
kubernetes/bankapp-deployment.yml (5)

1-8: LGTM! Deployment metadata and namespace configuration looks good.

The deployment is properly configured with appropriate API version, labels, and namespace isolation.


9-17: Add deployment strategy and PodDisruptionBudget for high availability

While the replica count of 2 provides basic HA, consider enhancing the deployment configuration:

  1. Add an explicit deployment strategy
  2. Define a PodDisruptionBudget to ensure minimum availability during node maintenance

18-22: Enhance container security and image handling

The container configuration needs security improvements and better image handling practices.


44-55: Add Spring Boot Actuator and configure health probes

The application lacks both the actuator dependency and custom health endpoints.


56-62: Verify resource limits for Spring Boot application

The current resource limits might need adjustment based on the application's actual requirements:

  • Memory limit of 1Gi might be tight for a Spring Boot application with multiple concurrent users
  • CPU limit of 500m might need tuning based on load testing results
✅ Verification successful

Let me gather more information about the application to better assess the resource requirements.


Resource limits are appropriate for this Spring Boot application

The current resource configuration is well-suited for this Spring Boot application based on the following findings:

  • It's a standard Spring Boot web application with JPA, Security, and Thymeleaf, which typically runs well within 1Gi memory
  • The application uses OpenJDK 17 which has improved memory management
  • HPA is configured to scale out at 40% CPU utilization, providing headroom before hitting the 500m CPU limit
  • The memory:cpu ratio (1Gi:500m) follows the recommended pattern for JVM applications

The configuration provides a good balance between resource efficiency and application performance, with room for scaling horizontally when needed.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check for any JVM or memory configuration in application properties
echo "Checking for memory configurations..."
fd "application\.(properties|ya?ml)" | xargs grep -i "xmx\|memory\|heap"

# Check for any existing resource usage patterns in previous deployments
echo "Checking for any existing HPA metrics..."
fd "bankapp.*\.ya?ml" | xargs grep -A 5 "metrics"

Length of output: 562


Script:

#!/bin/bash
# Check Spring Boot dependencies and configuration
echo "Checking Spring Boot dependencies..."
fd "pom\.xml|build\.gradle" | xargs grep -A 5 -i "spring-boot"

# Check for Docker configuration that might have JVM settings
echo "Checking Dockerfile for JVM configurations..."
fd "Dockerfile" | xargs cat

# Check HPA configuration details
echo "Checking complete HPA configuration..."
cat kubernetes/bankapp-hpa.yml

Length of output: 2971

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