加上 map 和 相关内容就可以了。如：

map $http_upgrade $connection_upgrade {
default upgrade;
'' close;
}

server {
listen 80;
server_name ;

location / {
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_read_timeout 3600s;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $connection_upgrade;
proxy_pass http://:5032/;
}
}