Using nginx as a WebSocket Reverse Proxy
1、使用 nginx 作为 Flask-SocketIO 反向代理
可以将 nginx 用作将请求传递给应用程序的前端反向代理。但是，只有 nginx 1.4 和更新的版本支持 WebSocket 协议的代理。以下是代理 HTTP 和 WebSocket 请求的基本 nginx 配置：
server {
listen 80;
server_name _;
location / {
include proxy_params;
proxy_pass http://127.0.0.1:5000;
}
location /static {
alias <path-to-your-application>/static;
expires 30d;
}
location /socket.io {
include proxy_params;
proxy_http_version 1.1;
proxy_buffering off;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "Upgrade";
proxy_pass http://127.0.0.1:5000/socket.io;
}
}
2、下面示例添加了对多个 Socket.IO 服务器负载平衡的支持：
upstream socketio_nodes {
ip_hash;
server 127.0.0.1:5000;
server 127.0.0.1:5001;
server 127.0.0.1:5002;
# to scale the app, just add more nodes here!
}
server {
listen 80;
server_name _;
location / {
include proxy_params;
proxy_pass http://127.0.0.1:5000;
}
location /static {
alias <path-to-your-application>/static;
expires 30d;
}
location /socket.io {
include proxy_params;
proxy_http_version 1.1;
proxy_buffering off;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "Upgrade";
proxy_pass http://socketio_nodes/socket.io;
}
}
