Week 02 : Microservice Deployment with Podman

This example demonstrates a single Product Microservice built with FastAPI and PostgreSQL, running in a Podman container. The primary goal of this example is to cover fundamental Podman concepts: building an image and running a container.

1. Podman Desktop:

   • Download from: https://podman-desktop.io

2. Python 3.10+:

   • Download from: https://www.python.org/downloads/

3. PostgreSQL Database:

   • You need a local PostgreSQL server instance.
   • Recommended: Install PostgreSQL directly on your machine (e.g., via Homebrew for macOS, apt for Linux, or a standalone installer for Windows). Download from https://www.postgresql.org/download/
   • Alternative (using Podman for DB only): If you prefer not to install PostgreSQL directly, you can run a PostgreSQL container temporarily:

     podman run --name local-postgres -e POSTGRES_USER=postgres -e POSTGRES_PASSWORD=postgres -e POSTGRES_DB=products -p 5432:5432 -d postgres:15-alpine

     Remember to stop/remove it when done: podman stop local-postgres && podman rm local-postgres

4. Database Setup (Ignore thisstep )

   The Product Service expects a PostgreSQL database named products with user postgres and password postgres.

   • Start your local PostgreSQL server.

   • Create the products database: Open your PostgreSQL client (like psql in your terminal or a GUI like pgAdmin) and run the following command:

     CREATE DATABASE products;

     (If you used the Podman command to run PostgreSQL locally, this database will be created automatically by the postgres:15-alpine image due to the POSTGRES_DB environment variable.)

5. Running the Product Service (Using Podman)