使用nginx反向代理

user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

events {
    worker_connections 65535;
}

http {
    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
    '$status $body_bytes_sent "$http_referer" '
    '"$http_user_agent" "$http_x_forwarded_for"';

    access_log /var/log/nginx/access.log main;

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    server_tokens off;
    log_not_found off;
    types_hash_max_size 4096;
    types_hash_bucket_size 64;
    client_max_body_size 16M;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
    upstream kubesphere {
        server 192.168.66.55:30880;
        server 192.168.66.56:30880;
                server 192.168.66.57:30880;
        keepalive 300;
    }


    server {
        listen 80;
        server_name kubesphere.kinghu.cc;
        access_log /var/log/nginx/kubesphere_access.log;
        error_log /var/log/nginx/kubesphere_error.log;

        location / {
            proxy_pass http://kubesphere/;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $host;
        }


        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   /usr/share/nginx/html;
        }

    }

}