docker-compose.yaml

version: '3'

services:
  postgres:
    container_name: 'test-postgres'
    image: 'postgres:latest'
    restart: always
    ports:
      - '15432:5432'
    networks:
      - my-network
    volumes:
      - 'pgdata:/var/lib/postgresql/data/'
    environment:
      POSTGRES_USER: /run/secrets/postgres_user
      POSTGRES_PASSWORD: /run/secrets/postgres_password
    secrets:
      - postgres_password
      - postgres_user
    expose: 
      - 5432
      
  next:
    container_name: 'test-next'
    restart: unless-stopped
    image: node:16
    command: npm run dev
    ports:
      - '3000:3000'
    volumes:
      - .:/srv/next:rw
    working_dir: /srv/next
    environment:
      DATABASE_URL: /run/secrets/postgres_url
    secrets:
      - postgres_url
    depends_on:
      - postgres
    networks:
      - my-network

secrets:
  postgres_password:
    file: ./postgres_password.txt
  postgres_user:  
    file: ./postgres_user.txt
  postgres_url:
    file: ./postgres_url.txt

volumes:
  pgdata: {}

networks:
  my-network:
    driver: bridge