docker/swarm/stack/docker.yml

parameters:
  _param:
    docker_image_registry: registry:2
    docker_image_visualizer: dockersamples/visualizer
    docker_stack_registry_replicas: 3
  docker:
    client:
      stack:
        docker:
          service:
            registry:
              environment:
                REGISTRY_HTTP_SECRET: ${_param:docker_registry_http_secret}
              deploy:
                replicas: ${_param:docker_stack_registry_replicas}
                restart_policy:
                  condition: any
              image: ${_param:docker_image_registry}
              ports:
                - 15000:5000
              volumes:
                - /srv/volumes/registry:/var/lib/registry
            visualizer:
              deploy:
                restart_policy:
                  condition: any
                placement:
                  constraints:
                    - "node.role == manager"
              image: ${_param:docker_image_visualizer}
              ports:
                - 18090:8080
              volumes:
                - /var/run/docker.sock:/var/run/docker.sock