websocket nginx配置

 
    upstream back_server{
        ip_hash;
        server 127.0.0.1:8000;
    }
    map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }

    upstream websocket {
        server 127.0.0.1:8001;
    }

  server {
        listen 8888 default_server;
        #listen [::]:8690 default_server ipv6only=on;

        #root /usr/share/nginx/html;
        #index index.html index.htm;


        # Make site accessible from http://localhost/
        server_name localhost;

        location /ws {
           proxy_pass http://websocket;
           proxy_http_version 1.1; 
	         proxy_set_header Host $http_host;
	        # proxy_connect_timeout 300s;
          # proxy_read_timeout 300s;
          # proxy_send_timeout 300s;
	         proxy_set_header X-Nginx-Proxy true;
	         proxy_set_header 'Access-Control-Allow-Origin' '*';
           proxy_set_header Upgrade $http_upgrade;
           proxy_set_header Connection $connection_upgrade;
        }
        location / {
            root  "/usr/local/project/dist";
            #index index.html
            try_files $uri $uri/ /index.html /index.htm; 
        }

        location /api {
                # First attempt to serve request as file, then
                # as directory, then fall back to displaying a 404.
                # Uncomment to enable naxsi on this location
                # include /etc/nginx/naxsi.rules
            proxy_set_header 'Access-Control-Allow-Origin' "*";
            proxy_set_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header Host $http_host;
	          proxy_pass http://back_server ;                                                                                                                       
        }                                                                                                                                                           
}