etc/nginx/conf.d/http/reverse-proxy.conf

server {
    listen 80;
    location / {
        proxy_pass http://localhost;
    }
}

server {
    listen 7778;
    location / {
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $host;

        proxy_pass http://localhost:7778;

        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }
}

server {
    listen 7860;
    location / {
        root /usr/share/nginx/html-page;
        index index.html;
    }
}