nginx+gin+mysql 的docker环境部署

创建一个GO容器

//拉取镜像
docker pull alpine
//因为gin要连接mysql，必须知道mysql docker容器的IP，然后更改gin代码mysql连接的IP
docker inspect <容器名> | grep IP
//运行
docker run --name goserver -d -v /home/gin/web:/server -w /server/build/gin alpine ./main

创建一个nginx容器

docker pull  nginx:alpine

接着准备个nginx.conf配置文件

mkdir ngx
vi ngx/nginx.conf
//写入
user  nginx;
worker_processes  auto;
error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;
events {
    worker_connections  1024;
}
http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;
    keepalive_timeout  65;
    
    upstream gin  {
    //这个IP要用“docker inspect <容器名> | grep IP”查gin docker容器的IP
	   server 172.17.0.3:8080;  
	}
	server{
	   listen 80;
	   location / {
	       proxy_pass  http://gin;
	       #Proxy Settings
	       proxy_redirect     off;
	       proxy_set_header   Host             $host;
	       proxy_set_header   X-Real-IP        $remote_addr;
	       proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
	   }
	}
}

运行

docker run -d --name ngx -v /home/gin/ngx/nginx.conf:/etc/nginx/nginx.conf -p 80:80 nginx:alpine

我这里踩了个坑，报错了

[gin@gin ~]$ sudo docker start 62123fb04c90
Error response from daemon: driver failed programming external connectivity on endpoint ngx (75290bd4d15ff6befb64ee857ddf311e84eb523e3db5c501e758f00674ed05e1):  (iptables failed: iptables --wait -t nat -A DOCKER -p tcp -d 0/0 --dport 80 -j DNAT --to-destination 172.17.0.4:80 ! -i docker0: iptables: No chain/target/match by that name.
 (exit status 1))
Error: failed to start containers: 62123fb04c90

解决办法

//开放80端口（或者直接关闭iptables都可以）
sudo iptables -I INPUT -p tcp --dport 80 -j ACCEPT
//重启docker
sudo systemctl daemon-reload	//守护进程重启
sudo  systemctl restart  docker		//重启docker服务

测试成功

nginx+gin+mysql 的docker环境部署

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