consul.yml

version: "3"
services:
  consul1:
    image: consul
    command: agent -server -bootstrap-expect=3 
    environment:
      - CONSUL_BIND_INTERFACE=eth0
      - CONSUL_CLIENT_INTERFACE=eth0
    volumes:
      - consul-data1:/consul/data
    deploy:
      replicas: 1
      placement:
        constraints:
          - node.hostname == vm-docker0
      restart_policy:
        condition: on-failure
    networks:
      - consul

  consul2:
    image: consul
    command: agent -server -join consul1
    environment:
      - CONSUL_BIND_INTERFACE=eth0
      - CONSUL_CLIENT_INTERFACE=eth0
    volumes:
      - consul-data2:/consul/data
    deploy:
      replicas: 1
      placement:
        constraints:
          - node.hostname == vm-docker1
      restart_policy:
        condition: on-failure
    networks:
      - consul
    depends_on:
      - consul1
  consul3:
    image: consul
    command: agent -server -join consul1
    environment:
      - CONSUL_BIND_INTERFACE=eth0
      - CONSUL_CLIENT_INTERFACE=eth0
    volumes:
      - consul-data3:/consul/data
    deploy:
      replicas: 1
      placement:
        constraints:
          - node.hostname == vm-docker2
      restart_policy:
        condition: on-failure
    depends_on:
      - consul1
    networks: 
      - consul
networks:
  consul:
    driver: overlay

volumes:
  consul-data1:
  consul-data2:
  consul-data3: