docker compose with ngrok and postgresql database

 services:

  db:

    image: postgres:14 # Use a specific version of Postgres

    environment:

      POSTGRES_USER: myuser

      POSTGRES_PASSWORD: mypassword

      POSTGRES_DB: mydatabase

    volumes:

      - postgres_data:/var/lib/postgresql/data # Persist data

    ports:

      - "5432:5432" # Optional: expose port to host for local tools like pgAdmin

  pgadmin:

    image: dpage/pgadmin4

    environment:

      PGADMIN_DEFAULT_EMAIL: admin@example.com

      PGADMIN_DEFAULT_PASSWORD: strong_password

    ports:

      - "5050:80" # Map host port 5050 to container port 80  access via http://localhost:5050

    networks:

      - app-network

    depends_on:

      - db # Ensure pgAdmin starts after the database

  nodejs-app:

    build: .

    ports:

      - "3000:3000" # Expose Node.js port

    networks:

      - app-network

    restart: unless-stopped

    depends_on:

      - db # Ensure db starts first

  ngrok:

    image: ngrok/ngrok:latest

    environment:

      NGROK_AUTHTOKEN: ${NGROK_AUTHTOKEN} # Pass authtoken as an environment variable

    command:

      - "http"

      - "nodejs-app:3000" # Target your application service and its port

      - "--hostname=${NGROK_DOMAIN}" # Use the reserved domain

    ports:

      - "4040:4040" # ngrok web UI

    networks:

      - app-network

    restart: unless-stopped

networks:

  app-network:

    driver: bridge

volumes:

  postgres_data: