配置文件【四层代理】

nginx

graph LR A[nginx.conf] B[global] C[http] C1[upstream] C2[server] C21[location] C211[if] D[stream] D1[upstream] D2[server] A -.->|worker进程配置| B A -.->|http服务配置| C C -.-> C1 C -.-> C2 C2 -.-> C21 C21 -.-> C211 D -.-> D1 D -.-> D2 A -.- |4层反向代理|D subgraph 反向代理和http服务 C1 C2 end subgraph 7层服务配置 C end subgraph 4层反向代理 D1 D2 end subgraph 4层服务配置 D end subgraph 全局配置 B end subgraph 主配置文件 A end

四层代理

_{nginx 在1.9 版本后开始支持 4层代理}

user  nginx;
worker_processes  1;

events {
    worker_connections  1024;
}
stream {
        log_format main '$remote_addr [$time_local] '
             '$protocol $status $bytes_sent $bytes_received '
             '$session_time "$upstream_addr" '
             '"$upstream_bytes_sent" "$upstream_bytes_received" "$upstream_connect_time"';
        upstream mysql {
                server 172.16.100.10:3306 weight=1 max_fails=3 fail_timeout=30s;
                server 172.16.100.11:3306 weight=1 max_fails=3 fail_timeout=30s;
                server 172.16.100.12:3306 weight=1 max_fails=3 fail_timeout=30s;
        }
        server {
                listen 3306;
                proxy_connect_timeout 2s;
                proxy_timeout 900s;
                proxy_pass mysql;
                access_log  /dev/stdout main;
          }
}