docker-compose.yml

version: "3.9" # specify docker-compose version

services: # defines a group of containers
  client: # name of the react container
    build: # specify build configuration
      context: ./client # path of the Dockerfile
    ports: # expose ports, host:container
      - 3000:5173
    volumes: # specifies volumes to mount, host:container
      - ./client/src:/app/client/src
      - ./client/public:/app/client/public
      - dist:/app/client/dist
    command: npm run dev # start the vite dev server

  server: # name of the node container
    build:
      context: ./server
    ports:
      - 1337:1337
    restart: always # restart container if it crashes
    volumes:
      - ./server/src:/app/server/src
      - dist:/app/client/dist
    environment: # environment variables for the container
      - DB_HOST=db
      - DB_PORT=5432
      - DB_NAME=devdb
      - DB_USER=devuser
      - DB_PASSWORD=changeme
      - HOST=0.0.0.0
      - PORT=1337
    depends_on: # wait for the postgres container to be "ready" before starting the node container
      - db
    command: npm run dev # override default command in Dockerfile

  db: # name of the postgres container
    image: postgres:13 # specify image to build container from, alpine is a lightweight linux distro
    volumes:
      - db-data:/var/lib/postgresql/data
    ports:
      - 5432:5432
    environment:
      - POSTGRES_DB=devdb
      - POSTGRES_USER=devuser
      - POSTGRES_PASSWORD=changeme

volumes: # specify volumes to be created
  dist: # name of the client volume, nothing else needs to be specified
  db-data: # name of the database volume