Varnish Cache: Specific Domain only NOT ALL

Question

I need help. Is possible to cache a specific domain only, since I want not all domain to be cache, I want example.com only. Can I ask for configuration for it.. thanks in advance. I am using Varnish Cache 4.

I only have this

/etc/varnish/default.vcl

 backend marketics {
   .host = "127.0.0.1";
   .port = "7080";
 }

where my apache port is 7080 .

Answer 1

You need to return pass for the other domains :

sub vcl_recv {
  if (! req.host == "example.com") {
    return (pass);
  }
  #else failover to the default behaviour
}

pass tells Varnish not to look into its cache, it will always fetch the content from the backend.