nginx-websockets.conf

upstream blah_cluster {
  server ip;
}


server {
  server_name blah;
  access_log /srv/logs/blah.log;
  error_log /srv/logs/blah-error.log;

  location / {
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
    proxy_buffering off;
    proxy_pass http://blah_cluster/;
  }
}