services:
  reverse-proxy:
    image: traefik
    command:
      - --api.insecure=true
      - --providers.docker
      - --entrypoints.app.address=:80
      - --providers.docker.exposedbydefault=false
      - --providers.docker.constraints=Label(`custom.label`,`blog`)
    ports:
      - '8021:80'
      # The Web UI (enabled by --api.insecure=true)
      - '8022:8080'
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock

  app:
    build: .
    labels:
      - 'traefik.enable=true'
      - 'custom.label=blog'
      - 'traefik.http.routers.app.rule=PathPrefix(`/`)'
      - 'traefik.http.services.app.loadbalancer.server.port=3000'
    deploy:
      replicas: 3
    ports:
      - 3000