Step 1 migration: add API service and dedicated PostgreSQL

docker-compose.yml

@@ -1,7 +1,38 @@
 services:
+  video-games-db:
+    image: postgres:16-alpine
+    container_name: video-games-db
+    restart: unless-stopped
+    environment:
+      - POSTGRES_DB=${VG_DB_NAME:-video_games}
+      - POSTGRES_USER=${VG_DB_USER:-video_games_user}
+      - POSTGRES_PASSWORD=${VG_DB_PASSWORD:-change_me}
+    volumes:
+      - video_games_data:/var/lib/postgresql/data
+
+  video-games-api:
+    build:
+      context: .
+      dockerfile: api/Dockerfile
+    container_name: video-games-api
+    restart: unless-stopped
+    depends_on:
+      - video-games-db
+    environment:
+      - SERVICE_NAME=video-games-api
+      - API_INTERNAL_PORT=3001
+      - DATABASE_URL=postgres://${VG_DB_USER:-video_games_user}:${VG_DB_PASSWORD:-change_me}@video-games-db:5432/${VG_DB_NAME:-video_games}
+    ports:
+      - "${API_PORT:-7002}:3001"
+
   video-games-app:
     build: .
     container_name: video-games-app
+    restart: unless-stopped
+    depends_on:
+      - video-games-api
     ports:
       - "${APP_PORT:-7001}:80"
-    restart: unless-stopped
+
+volumes:
+  video_games_data: