stack.yml

version: "3.9"

services:
  traefik:
    image: traefik:v2.7.0
    ports:
      - "80:80"
      - "8080:8080" # traefik dashboard
    command:
      - --api.insecure=true # set to 'false' on production
      - --api.dashboard=true # see https://docs.traefik.io/v2.0/operations/dashboard/#secure-mode for how to secure the dashboard
      - --api.debug=true # enable additional endpoints for debugging and profiling
      - --log.level=DEBUG # debug while we get it working, for more levels/info see https://docs.traefik.io/observability/logs/
      - --providers.docker=true
      - --providers.docker.swarmMode=true
      - --providers.docker.exposedbydefault=false
      - --providers.docker.network=proxy
      - --entrypoints.web.address=:80
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    networks:
      - proxy
    deploy:
      placement:
        constraints:
          - node.role == manager
  
  worker:
    image: lexxito/wodockersample:jetty9.4.46-jre11
    hostname: "{{.Service.Name}}-{{.Task.Slot}}"
    networks:
      - proxy
    deploy:
      replicas: 4
      labels:
        - "traefik.enable=true"
        - "traefik.http.routers.worker.rule=Host(`127.0.0.1`) || Host(`localhost`)"
        - "traefik.http.routers.worker.entrypoints=web"
        - "traefik.http.services.worker.loadbalancer.server.port=8080"
        - "traefik.http.services.worker.loadbalancer.sticky=true"
        - "traefik.http.services.worker.loadbalancer.sticky.cookie.name=StickyCookie"

networks:
  proxy:
#    external: true