docker-compose.yml

services:
  backend:
    restart: unless-stopped
    build:
      context: backend
      dockerfile: Dockerfile
      args:
        # Services that use host files need to run with the same UID/GID as the host
        # user for these files to be accessible in both host and docker.
        # Here, `UID` and `GID` are forwarded as build args to create the user.
        # Requires `export UID=$UID` and `export GID=$GID` somewhere (~/.bashrc or ~/.zshrc).
        # See also: https://github.com/docker/compose/issues/2380
        UID: $UID
        GID: $GID

    entrypoint: ./docker-entrypoint.sh
    command: flask run
    depends_on:
      - postgresql
    volumes:
      - ./backend:/backend
    ports:
      - "5000:5000"
    environment:
      FLASK_APP: /backend/app/app.py
      FLASK_RUN_HOST: 0.0.0.0
      FLASK_CONFIG: local
      SQLALCHEMY_DATABASE_URI: 'postgresql://testuser:testpw@postgresql:5432/forum'
      SQLALCHEMY_TEST_DATABASE_URI: 'postgresql://testuser:testpw@postgresql:5432/forumtest'

  frontend:
    restart: unless-stopped
    build:
      context: frontend
      dockerfile: Dockerfile
      args:
        - UID=$UID
        - GID=$GID
    user: "node"
    command: /bin/bash -c "yarn install && yarn serve"
    depends_on:
      - backend
    volumes:
      - ./frontend:/frontend
    ports:
      - "8080:8080"

  postgresql:
    image: postgres:13
    user: "${UID}:${GID}"
    environment:
      POSTGRES_USER: testuser
      POSTGRES_PASSWORD: testpw
    ports:
      - "5432:5432"
    volumes:
      - ./data/postgresql:/var/lib/postgresql/data