version: '3.7'
# Any top-level key starting with x- in a Docker Compose file will be
# ignored
x-backend: &backend  # yaml anchor definition
  image: ${APP_IMAGE}:${APP_TAG}
  volumes:
    - media_root:/app/media
    - xapian_index:/app/xapian_index
  environment:
    # PAPERMERGE__<section>__<variable>
    - PAPERMERGE__MAIN__SECRET_KEY=${SECRET_KEY}
    - PAPERMERGE__DATABASE__TYPE=postgres
    - PAPERMERGE__DATABASE__USER=${DB_USER}
    - PAPERMERGE__DATABASE__NAME=${DB_NAME}
    - PAPERMERGE__DATABASE__PASSWORD=${DB_PASSWORD}
    - PAPERMERGE__DATABASE__HOST=${DB_HOST}
    - PAPERMERGE__REDIS__HOST=${REDIS_HOST}
    - PAPERMERGE__REDIS__PORT=${REDIS_PORT}
    - PAPERMERGE__MAIN__TIMEZONE=${TIMEZONE}
    # path where xapian index data is stored
    - PAPERMERGE__SEARCH__PATH=/app/xapian_index
    - DJANGO_SUPERUSER_USERNAME=${SUPERUSER_USERNAME}
    - DJANGO_SUPERUSER_EMAIL=${SUPERUSER_EMAIL}
    - DJANGO_SUPERUSER_PASSWORD=${SUPERUSER_PASSWORD}
    - DJANGO_SETTINGS_MODULE=config.settings
services:
  worker: # celery worker
    <<: *backend
    command: worker
  ws_server:  # websockets server / daphne
    <<: *backend
    command: ws_server
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.ws_server.rule=Host(`${USE_HOSTNAME}`) && PathPrefix(`/ws/`)"
  backend:  # rest api backend / uwsgi
    <<: *backend
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.backend.rule=Host(`${USE_HOSTNAME}`) && PathPrefix(`/api/`)"
  db:
    image: postgres:14.4
    volumes:
      - postgres_data:/var/lib/postgresql/data/
    environment:
      - POSTGRES_USER=${DB_USER}
      - POSTGRES_DB=${DB_NAME}
      - POSTGRES_PASSWORD=${DB_PASSWORD}
  redis:
    image: 'redis:6'
    ports:
      - '6379:6379'
    volumes:
      - redis_data:/data
  traefik:
    image: "traefik:v2.6"
    command:
      #- "--log.level=DEBUG"
      - "--api.insecure=true"
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=false"
      - "--entrypoints.web.address=:80"
    ports:
      - "80:80"
      - "8080:8080"
    volumes:
      - "/var/run/docker.sock:/var/run/docker.sock:ro"
  frontend: # emberjs
    image: ${PAPERMERGE_JS_IMAGE}:${PAPERMERGE_JS_TAG}
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.traefik.rule=Host(`${USE_HOSTNAME}`) && PathPrefix(`/`)"
volumes:
  postgres_data:
  media_root:
  xapian_index:
  redis_data: