Example Docker Stack

docker-compose.yml

version: '3.2'

services:

  proxy:
      image: containous/traefik:latest
      command: --web --docker --docker.swarmmode --docker.watch --logLevel=DEBUG
      ports:
        - 80:80
        - 8080:8080      
      volumes:
        - /var/run/docker.sock:/var/run/docker.sock
        - /dev/null:/etc/traefik/traefik.toml
      labels:
        - "traefik.enable=false"     
      deploy:
        placement:
         constraints:
           - node.role == manager
        replicas: 1   
        resources:
          limits:
           memory: 256M        
      networks:
        - backend   


  greeting-service:
      image: bennu/greeting-microservice:1.0.0
      deploy:
       replicas: 1
       resources:
        limits:
          memory: 15M            
       update_config:
        parallelism: 1
        delay: 10s
        failure_action: rollback
       labels:
        - "traefik.port=8000"
        - "traefik.backend=greeting-service"        
        - "traefik.frontend.rule=PathPrefixStrip:/v1/greeting"   
      networks:
        - backend   

networks:
  backend:         
    driver: overlay
    attachable: true
    ipam:
      driver: default
      config:
        - subnet: 10.20.0.0/16