version: '3'
services:
 micro-hcnet-website-13:
  image: 172.18.0.1:5000/hcnet-website-12:0.0.1-SNAPSHOT
  restart: on-failure
  ports:
  - 8311:8211
~   

version: '3'
services:
 micro-hcnet-website-13:
  image: 172.18.0.1:5000/hcnet-website-12:0.0.1-SNAPSHOT
  restart: on-failure
  ports:
  - 8211:8211
~  

apache:          # apache 服务
    image: rhel7:v1  # 父镜像名称
    expose:
        - 80   # 暴露端口
    volumes:     # 挂载卷
        - ./web/:/var/www/html

nginx:          # nginx 服务
    image: nginx   # 父镜像
    expose:    
        - 80   # 暴露端口

haproxy:         # haproxy 服务
    image: haproxy  # 父镜像
    volumes:     # 挂载卷
        - ./haproxy:/usr/local/etc/haproxy
    links:      # 关联容器
        - apache
        - nginx
    ports:      # 端口映射
        - "8080:80"
    expose:      # 暴露的服务端口
        - 80

global   # 全局配置，日志信息
    log 127.0.0.1 local0
    log 127.0.0.1 local1 notice
defaults
    log global
    option httplog
    option dontlognull
    timeout connect 5000ms
    timeout client 50000ms
    timeout server 50000ms
    stats uri /status
frontend balancer
    bind 0.0.0.0:80      # 监听端口
    default_backend web_backends  # 默认后后端
backend web_backends
    balance roundrobin
    server weba apache:80 check  # 后端a apache 与 .yml 文件中的 links 中的内容对应
    server webb nginx:80 check

[root@foundation21 compose]# ls
docker-compose.yml haproxy web
[root@foundation21 compose]# pwd
/tmp/docker/compose
# 查看文件隶属关系
[root@foundation21 compose]# tree
.
├── docker-compose.yml
├── haproxy
│  └── haproxy.cfg
└── web
  └── index.html

2 directories, 3 files