nginx代理wss 实现websocket

# 实际websocket服务器地址
upstream wss_svr {
    server 192.168.213.182:3653 weight=1;  
}
 
# 443 ssl端口配置，实际websockets（wss）地址
server {
 
    listen 443;
    server_name 192.168.213.182;
        
    ssl on;
 
    # 自己的证书，放在与nginx.conf同一文件夹下。（若放不同文件夹注意路径问题）
    ssl_certificate dhxtest.crt;
    ssl_certificate_key dhxtest_nopass.key;
        
    ssl_session_timeout 5m;
    ssl_session_cache shared:SSL:10m;
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2 SSLv2 SSLv3;
    ssl_ciphers ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;
    ssl_prefer_server_ciphers on;
    ssl_verify_client off;
        
    location / {        
        proxy_redirect off;
        proxy_pass http://wss_svr;      # 转发
        proxy_set_header Host $host;
        proxy_set_header X-Real_IP $remote_addr;
        proxy_set_header X-Forwarded-For $remote_addr:$remote_port;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;   # 最后两行的set_header表示将http协议头升级为websocket协议
        proxy_set_header Connection upgrade;
    }
        
}

最后结果：访问 wss://127.0.0.1:443，nginx转发请求到 ws://192.168.213.182:3653，然后和3653端口的websocket服务进行通信

参考：
nginx反向代理wss，实现不修改服务器端websocket代码加密通讯请求