参考官方文档
https://hub.docker.com/r/hyper/docker-registry-web/
1.准备好目录，下载docker-compose

mkdir /opt/harbor
cd /opt/harbor

####下载 harbor
wget https://storage.googleapis.com/harbor-releases/harbor-offline-installer-v1.6.1.tgz
tar xf harbor-offline-installer-v1.6.1.tgz

# 快速安装compose
curl -L https://get.daocloud.io/docker/compose/releases/download/1.24.0/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose

chmod +x /usr/local/bin/docker-compose
cd harbor
vim harbor.cfg
##
hostname=10.0.122.57
harbor_admin_password = Harbor12345
##

#执行安装脚本
./install.sh

#浏览器访问
10.0.122.57  

添加项目，推送镜像

#准备好一个镜像
docker tag centos7 10.0.122.57/library/busybox:v1
docker images
vim /etc/docker/daemon.json
{
 "registry-mirrors": ["https://mb8n4btz.mirror.aliyuncs.com"],
 "insecure-registries": ["https://10.0.122.57"]
}

#登录用户
docker login 10.0.122.57
Username:admin
Password:Harbor12345
Login Succeeded

#推送镜像
docker push 10.0.122.57/library/busybox:v1

编排启动镜像，参数含义可查阅官方文档

(让脚本自动拉取镜像)
mkdir /opt/my_wordpress/
cd /opt/my_wordpress/
vim docker-compose.yml

version: '3'
services:
  db:
    image: mysql:5.7
    volumes:
      - /data/db_data:/var/lib/mysql
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: somewordpress
      MYSQL_DATABASE: wordpress
      MYSQL_USER: wordpress
      MYSQL_PASSWORD: wordpress
  wordpress:
    depends_on:
      - db
    image: wordpress:latest
    volumes:
      - /data/web_data:/var/www/html
    ports:
      - "8000:80"
    restart: always
    environment:
      WORDPRESS_DB_HOST: db:3306
      WORDPRESS_DB_USER: wordpress
      WORDPRESS_DB_PASSWORD: wordpress

启动脚本

[root@docker01 my_wordpress]docker-compose up
#启动方法:docker-compose up
#后台启动方法:docker-compose up -d

浏览器访问
10.0.122.57：8000
注意: 不要选择中文,很慢
进行 wordpress 的安装即可

haproxy 代理后端 docker容器

[root@docker01 my_wordpress]# vim  docker-compose.yml
---
version: '3'
services:
  db:
    image: mysql:5.7
    volumes:
      - /data/db_data:/var/lib/mysql
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: somewordpress
      MYSQL_DATABASE: wordpress
      MYSQL_USER: wordpress
      MYSQL_PASSWORD: wordpress
  wordpress:
    depends_on:
      - db
    image: wordpress:latest
    volumes:
      - /data/web_data:/var/www/html
    ports:
      - "80"
    restart: always
    environment:
      WORDPRESS_DB_HOST: db:3306
      WORDPRESS_DB_USER: wordpress
      WORDPRESS_DB_PASSWORD: wordpress

2、同时启动两台 wordpress

[root@docker01 my_wordpress]docker-compose scale db=1 wordpress=2
WARNING: The scale command is deprecated. Use the up command with the --scale
flag instead.
Creating my_wordpress_db_1 ... done
Creating my_wordpress_wordpress_1 ... done
Creating my_wordpress_wordpress_2 ... done

3、安装 haproxy

[root@docker01 ~]# yum install haproxy -y
4、修改haproxy配置文件
关于配置文件的详细说明,参考:https://www.cnblogs.com/MacoLee/p/5853413.html

[root@docker01 ~]cp /etc/haproxy/haproxy.cfg{,.bak}
[root@docker01 ~] vim /etc/haproxy/haproxy.cfg
global
 
log         127.0.0.1 local2
   chroot    
/var/lib/haproxy
  pidfile     /var/run/haproxy.pid
  maxconn     4000
  user      
  group       haproxy
  daemon
  stats socket /var/lib/haproxy/stats level admin  #支持命令行控制
haproxy
defaults
  mode                  
http
  log                     global
  option                
httplog
  option                
dontlognull
  option http-server-close
  option forwardfor       except 127.0.0.0/8
  option                
  retries                 3
  timeout http-request  
  timeout queue           1m
  timeout connect         10s
  timeout client        
1m
  timeout server        
1m
  timeout http-keep-alive 10s
  timeout check           10s
  maxconn                 3000
redispatch
10s
listen stats
  mode http
  bind 0.0.0.0:8888
  stats enable
  stats uri     /haproxy-status
  stats auth  
admin:123456
frontend frontend_www_example_com
  bind 10.0.122.57:8000
  mode http
  option httplog
  log global
  default_backend backend_www_example_com
backend backend_www_example_com
  option forwardfor header X-REAL-IP
  option httpchk HEAD / HTTP/1.0
  balance roundrobin
  server web-node1  10.0.122.57:32768 check inter 2000 rise 6fall 4
  server web-node2  10.0.122.57:32769 check inter 2000 rise 6fall 4

5、启动 haproxy
systemctl start haproxy
systemctl enable haproxy
6、编写php测试页
放到/data/web_data下,在浏览器中访问可以查看当前访问节点信息
[root@docker01 web_data]# vim check.php
<html>
<head>
<title>PHP测试</title>
</head>
<body>
<?php echo '<p>Hello World </p>'; ?>
<?php echo "访问的服务器地址是:"."
<fontcolor=red>"._SERVER['SERVER_NAME']."
</font>"."
";
?>
</body>
</html>

7、使用浏览器访问状态页面
http://10.0.122.57:8888/haproxy-status
可以看到后端节点的监控状况,

image.png

8、安装 socat 直接操作 socket 控制 haproxy
1、安装软件
yum install socat.x86_64 -y
2、查看帮助
[root@docker01 web_data] echo "help"|socat stdio /var/lib/haproxy/stats
3、下线后端节点
echo "disable server backend_www_example_com/web-node2"|socat stdio
/var/lib/haproxy/stats
4、上线后端节点
echo "enable server backend_www_example_com/web-node3"|socat stdio
/var/lib/haproxy/stats