第一次使用nginx.
我有一个nodejs WebSocket服务器监听ws：// service_name：3600.
我正在使用docker-compose：

version: "2"
services:
   # stuff

   service_name:
      image: imagename
      ports:
        - 3600:3600
      links:
        # stuff
        - proxy

   proxy:
     image: image-from-nginx-with-custom-config
     ports:
       - 80:80
       - 443:443
       - 8443:8443

我的配置：

// stuff 

server {
    listen          8443;
    server_name     localhost;
    ssl on;

    ssl_certificate      /etc/nginx/certs/crt.pem;
    ssl_certificate_key  /etc/nginx/certs/key.pem;

    keepalive_timeout    60;

    proxy_next_upstream error timeout invalid_header http_500 http_502 http_503;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto https;

    location / {
        proxy_pass ws://service_name:3600;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }
}

我在启动时获得了/etc/nginx/conf.d/default.conf中的nginx：[emerg]无效的URL前缀.
所以nginx不承认ws,我该怎么办？

解决方法:

在nginx中,你仍然需要在你的网址中使用http作为协议而不是ws.

proxy_pass http://service_name:3600;

浏览器需要ws和wss协议,在下面添加的服务器端通过http处理websockets

proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";