nginx proxy pass (e.g. from port 80 to 8080)

nginx_proxy

upstream http_backend {
  server 127.0.0.1:8080;
  keepalive 32;
}

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

server {
  listen 80;
  server_name example.com;
  access_log /var/log/example_com_access.log;
  error_log /var/log/example_com_error.log;

  location / {
    proxy_pass http://http_backend;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection $connection_upgrade;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_set_header X-Real-IP $remote_addr;
    more_clear_headers 'X-Frame-Options';
  }

  location /static/ {
    alias /var/www/example.com/current/static/;
    add_header Access-Control-Allow-Origin *;
    gzip_static on;
    expires max;
    add_header Cache-Control public;
    more_clear_headers 'X-Frame-Options';
  }
}