SWebUI 负载均衡

一、原理

SWeBUI支持WebSocket及TCP协议，目前负载主要使用WebSocket，可基于Header进行HASH，并使用后端支持多个连接。

二、NGINX

基于WebSocket进行负载

  
    upstream websocket {
    hash $http_x-client-id;
    server 192.168.2.105:2324;
    server 192.168.2.106:2324;
}

server {
        listen 2324 default_server;
        listen [::]:2324 default_server;

        location / {
                # First attempt to serve request as file, then
                # as directory, then fall back to displaying a 404.
                proxy_pass http://websocket;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header Host $host;
                proxy_set_header Smo-Uri $request_uri;
                proxy_set_header X-Real-IP $remote_addr;
        }
        location /ws {
                proxy_pass http://websocket;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection $connection_upgrade;

        }
}


      
            

三、HAProxy

基于WebSocket进行负载

  
   frontend smo
    bind :2324
    mode http
    default_backend smo_server

backend smo_server
    mode http
    balance hdr(x-client-id)
    option forwardfor
    http-request set-header X-Forwarded-Port %[dst_port]
    http-request add-header X-Forwarded-Proto https if { ssl_fc }
    option httpchk GET /
    server sweb1 192.168.2.105:2324 cookie sweb1 check
    server sweb2 192.168.2.106:2324 cookie sweb2 check