consul-demo-docker-compose.yml

version: '2'

#client local machine:
#  consul agent -bind=172.18.233.1 -client=0.0.0.0 -retry-join=172.18.233.20 -data-dir /tmp/data -ui -recursor=127.0.1.1
#client dns config:
#  iptables -t nat -I PREROUTING -p udp -m udp --dport 53 -j REDIRECT --to-ports 8600
#  iptables -t nat -I PREROUTING -p tcp -m tcp --dport 53 -j REDIRECT --to-ports 8600
#  iptables -t nat -I OUTPUT -d localhost -p udp -m udp --dport 53 -j REDIRECT --to-ports 8600
#  iptables -t nat -I OUTPUT -d localhost -p tcp -m tcp --dport 53 -j REDIRECT --to-ports 8600

services:
  consul1:
    hostname: consul1
    image: consul
    environment:
      CONSUL_LOCAL_CONFIG: "{\"skip_leave_on_interrupt\": true, \"leave_on_terminate\": false }"
    dns: 172.18.233.1
    command: consul agent -server -ui -client=0.0.0.0 -bind=0.0.0.0 -retry-join=consul1 -bootstrap-expect=3 -data-dir=/consul/data
    networks:
      app_net:
        ipv4_address: 172.18.233.20
    expose:
      - "8301"
      - "8301/udp"
      - "8302"
      - "8302/udp"
      - "8400"
      - "8500"
      - "8600"
      - "8600/udp"
  consul2:
    hostname: consul2
    image: consul
    environment:
      CONSUL_LOCAL_CONFIG: "{\"skip_leave_on_interrupt\": true, \"leave_on_terminate\": false }"
    dns: 172.18.233.1
    command: consul agent -server -ui -client=0.0.0.0 -bind=0.0.0.0 -retry-join=consul1 -bootstrap-expect=3 -data-dir=/consul/data
    networks:
      app_net:
        ipv4_address: 172.18.233.21
    expose:
      - "8301"
      - "8301/udp"
      - "8302"
      - "8302/udp"
      - "8400"
      - "8500"
      - "8600"
      - "8600/udp"
  consul3:
    hostname: consul3
    image: consul
    environment:
      CONSUL_LOCAL_CONFIG: "{\"skip_leave_on_interrupt\": true, \"leave_on_terminate\": false }"
    dns: 172.18.233.1
    command: consul agent -server -ui -client=0.0.0.0 -bind=0.0.0.0 -retry-join=consul1 -bootstrap-expect=3 -data-dir=/consul/data
    networks:
      app_net:
        ipv4_address: 172.18.233.22
    expose:
      - "8301"
      - "8301/udp"
      - "8302"
      - "8302/udp"
      - "8400"
      - "8500"
      - "8600"
      - "8600/udp"
  app1:
    hostname: app1
    image: tramasoli/sample-springboot-rest
    networks:
      - app_net
  app2:
    hostname: app2
    image: tramasoli/sample-springboot-rest
    networks:
      - app_net
networks:
  app_net:
    driver: bridge
    ipam:
      driver: default
      config:
        - subnet: 172.18.233.0/24
          gateway: 172.18.233.1
          ip_range: 172.18.233.64/26