Docker changes (#31)

Reviewed-on: #31
Co-authored-by: phoenix <kundeng00@pm.me>
Co-committed-by: phoenix <kundeng00@pm.me>

docker-compose.yaml

@@ -2,43 +2,32 @@ version: '3.8' # Use a recent version
 
 services:
   # Your Rust Application Service
-  app:
+  auth_api:
     build: . # Tells docker-compose to build the Dockerfile in the current directory
     container_name: icarus_auth # Optional: Give the container a specific name
     ports:
       # Map host port 8000 to container port 3000 (adjust as needed)
-      # Format: "HOST_PORT:CONTAINER_PORT"
       - "8000:3000"
-    environment:
-      # Pass environment variables to your Rust application
-      # RUST_LOG: info # Example: Set log level
-      # IMPORTANT: Configure DATABASE_URL to connect to the 'db' service
-      # The hostname 'db' matches the service name defined below.
-      DATABASE_URL: postgresql://icarus_op:password@db:5432/icarus_auth
-      # Add any other environment variables your app needs
-      # APP_HOST: 0.0.0.0
-      # APP_PORT: 3000
+    env_file:
+      - .env
     depends_on:
-      db:
+      auth_db:
         condition: service_healthy # Wait for the DB to be healthy before starting the app
     restart: unless-stopped # Optional: Restart policy
 
   # PostgreSQL Database Service
-  db:
+  auth_db:
     image: postgres:17.4-alpine # Use an official Postgres image (Alpine variant is smaller)
     container_name: icarus_auth_db # Optional: Give the container a specific name
     environment:
       # These MUST match the user, password, and database name in the DATABASE_URL above
-      POSTGRES_USER: icarus_op
-      POSTGRES_PASSWORD: password
-      POSTGRES_DB: icarus_auth
+      POSTGRES_USER: ${POSTGRES_USER:-icarus_op}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-password}
+      POSTGRES_DB: ${POSTGRES_DB:-icarus_auth}
     volumes:
       # Persist database data using a named volume
       - postgres_data:/var/lib/postgresql/data
     ports: []
-      # Optional: Expose port 5432 ONLY if you need to connect directly from your host machine (e.g., for debugging)
-      # - "5432:5432"
-      # pass:
     healthcheck:
         # Checks if Postgres is ready to accept connections
         test: ["CMD-SHELL", "pg_isready -U $$POSTGRES_USER -d $$POSTGRES_DB"]