docker-compose.labels.yml

version: "3"

services:
  shepherd:
    image: containrrr/shepherd
    environment:
      # Beware YAML gotchas regarding quoting:
      # With KEY: 'VALUE', quotes are part of yaml syntax and thus get stripped
      # but with KEY='VALUE', they are part of the value and stay there,
      # causing problems!
      SLEEP_TIME: "1d"
      TZ: "US/Eastern"
      VERBOSE: "true"
      IGNORELIST_SERVICES: "label=shepherd.autodeploy=false"
      FILTER_SERVICES: "label=shepherd.autodeploy=true"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    deploy:
      placement:
        constraints:
          - node.role == manager

  # Explicitly enable shepherd for this service
  updating-app:
    image: hello-world
    deploy:
      labels:
        - shepherd.autodeploy=true

  # Explicitly disable shepherd for this service
  not-updating-app:
    image: hello-world
    deploy:
      labels:
        - shepherd.autodeploy=false

  # Implicitly disable shepherd for this service
  # because of FILTER_SERVICES above
  another-not-updating-app:
    image: hello-world