echo 'server {
 listen 8888; # no ssl backend
 server_name _;

 location / {
 proxy_pass http://SERVERIP:7080; # apache no ssl
 proxy_set_header Host $host;
 proxy_set_header X-Real-IP $remote_addr;
 proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
 }
}

server {
 listen 8889; # ssl backend
 server_name _;

 location / {
 proxy_pass https://SERVERIP:7081; # apache ssl
 proxy_set_header Host $host;
 proxy_set_header X-Real-IP $remote_addr;
 proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
 }
}' > /etc/nginx/conf.d/varnish.conf