docker-compose.yml

version: '3.7'

x-consul-restart-policy:
  &consul-restart-policy
  delay: 5s
  max_attempts: 5
  window: 120s

x-consul-resources:
  &consul-resources
  limits:
    memory: 500M
    cpus: '2'

services:
  consul-server-seed:
    image: consul:1.6.2
    deploy:
      replicas: 1
      placement:
        constraints:
          - node.role == manager
      resources: *consul-resources
      restart_policy: *consul-restart-policy
    volumes:
      - "{{ .Component.Params.consul.dataDir }}:/consul/data"
    command: >
      agent
        -server
        -bootstrap-expect 3
        -client 0.0.0.0
        -bind '{{ "{{ GetPrivateIP }}" }}'
        -ui

  consul-server:
    image: consul:1.6.2
    deploy:
      replicas: 2
      placement:
        constraints:
          - node.role == manager
      resources: *consul-resources
      restart_policy: *consul-restart-policy
    depends_on:
      - consul-server-seed
    volumes:
      - "{{ .Component.Params.consul.dataDir }}:/consul/data"
    ports:
      - 8500:8500
    command: >
      agent
        -server
        -retry-join consul-server-seed
        -client 0.0.0.0
        -bind '{{ "{{ GetPrivateIP }}" }}'
        -ui

  consul-client:
    image: consul:1.6.2
    deploy:
      mode: global
      placement:
        constraints:
          - node.role != manager
      resources: *consul-resources
      restart_policy: *consul-restart-policy
    depends_on:
      - consul-server
    volumes:
      - "{{ .Component.Params.consul.dataDir }}:/consul/data"
    command: >
      agent
        -retry-join consul-server
        -retry-join consul-server-seed
        -client 0.0.0.0
        -bind '{{ "{{ GetPrivateIP }}" }}'