nginx

nginx代理websocket
1、非默认端口情况下。协议头Host需带上端口proxy_set_header Host $host:$server_port;
1、streamlit要求协议头Origin、Host一致（注：两者格式不同）。
2、协议版本要求proxy_http_version 1.1;

map $http_upgrade $connection_upgrade {
        default          upgrade;
        ''               close;
}
server {
        listen 10.10.18.178:8501;
        server_name _;
        location / {
                proxy_pass http://10.10.18.178:8501/;

                proxy_http_version  1.1;
                proxy_set_header  Host  www.example.com:$server_port;
                proxy_set_header  Origin  http://www.example.com:$server_port; # streamlit要求
                proxy_set_header  x-forwarded-proto  $scheme;
                proxy_set_header  x-real-ip  $remote_addr;
                proxy_set_header  x-forwarded-for  $remote_addr;
                proxy_set_header  Upgrade  $http_upgrade;
                proxy_set_header  Connection  $connection_upgrade;
        }
}