# CI/CD Pipeline with QEMU

This helps in setting up a Continuous Integration and Continuous Deployment (CI/CD) pipeline using QEMU. The pipeline is triggered on pull requests to the main branch and involves running tests in a QEMU virtual machine.

## Pipeline Steps

### 1. Triggering the Pipeline

The pipeline is triggered by a pull request to the main branch.

```yaml
on:
  pull_request:
    branches:
      - main
```

### 2. Job: `qemu-test`

The `qemu-test` job runs on the latest Ubuntu environment.

```yaml
jobs:
  qemu-test:
    runs-on: ubuntu-latest
```

### 3. Steps

#### Step 1: Checkout Code

This step checks out the code from the repository.

```yaml
- name: Checkout code
  uses: actions/checkout@v2
```

#### Step 2: Install QEMU

This step installs QEMU on the runner.

```yaml
- name: Install QEMU
  run: |
    sudo apt-get update
    sudo apt-get install -y qemu-system-x86
```

#### Step 3: Download QEMU VM Image

This step downloads the QEMU VM image from a specified source.

```yaml
- name: Download QEMU VM Image
  run: |
    curl -L -o your_image.qcow2 http://example.com/path/to/your/image.qcow2
```

#### Step 4: Run QEMU Simulation

This step runs the QEMU virtual machine with the downloaded image.

```yaml
- name: Run QEMU simulation
  run: |
    qemu-system-x86_64 -hda your_image.qcow2 -m 2048 -smp 2 -net nic -net user,hostfwd=tcp::2222-:22 -nographic
```

#### Step 5: Run Tests

This step runs the tests within the QEMU VM. Replace the placeholder with your actual test commands.

```yaml
- name: Run Tests
  run: |
    # Add commands to run your tests within the QEMU VM
```

#### Step 6: Collect Results

This step collects and uploads the test results to your dashboard. Replace the placeholder with your actual commands for collecting results.

```yaml
- name: Collect Results
  run: |
    # Add commands to collect and upload test results to your dashboard
```

## Notes

- Ensure the QEMU VM image is accessible and the URL is correct.
- Modify the test and result collection commands according to your specific requirements.
- The `hostfwd=tcp::2222-:22` option forwards port 2222 on the host to port 22 in the VM, which can be used for SSH access.

## Conclusion

This CI/CD pipeline sets up an environment to test code changes using QEMU, providing a robust way to ensure code quality before merging changes into the main branch.