init db and docker

docker-compose.yml

@@ -0,0 +1,62 @@
+services:
+  # PostgreSQL - Primary database
+  postgres:
+    image: postgres:16-alpine
+    environment:
+      POSTGRES_USER: urlshortner
+      POSTGRES_PASSWORD: localdev
+      POSTGRES_DB: urlshortner
+    ports:
+      - "5432:5432"
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+      - ./db/init.sql:/docker-entrypoint-initdb.d/init.sql
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U urlshortner"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+  # Redis - Caching layer
+  redis:
+    image: redis:7-alpine
+    ports:
+      - "6379:6379"
+    volumes:
+      - redis_data:/data
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+  # API Server (can scale with --scale api=3)
+  api:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    environment:
+      DATABASE_URL: postgresql://urlshortner:localdev@postgres:5432/urlshortner
+      REDIS_URL: redis://redis:6379
+      MACHINE_ID: 1
+    depends_on:
+      postgres:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    ports:
+      - "8000"  # Random port mapping for scaling
+
+  # Nginx - Load balancer
+  nginx:
+    image: nginx:alpine
+    ports:
+      - "80:80"
+    volumes:
+      - ./nginx/nginx.conf:/etc/nginx/nginx.conf:ro
+    depends_on:
+      - api
+
+volumes:
+  postgres_data:
+  redis_data: