performance - Varnish: cache only specific domain

Question

I have been Googling aggressively, but without luck.

I'm using Varnish with great results, but I would like to host multiple websites on a single server (Apache), without Varnish caching all of them.

Can I specify what websites by URL to cache?

Thanks

Answer 1

（评论后编辑）它是req.http.host，所以在你的vcl文件（例如default.vcl）中：

sub vcl_recv {
  # dont cache foo.com or bar.com - optional www
   if (req.http.host ~ "(www\.)?(foo|bar)\.com") {
     pass;
   }
  # cache foobar.com - optional www
   if (req.http.host ~ "(www\.)?foobar\.com") {
     lookup;
   }
}

在 varnish3-vcl 中：

sub vcl_recv {
  # dont cache foo.com or bar.com - optional www
   if (req.http.host ~ "(www\.)?(foo|bar)\.com") {
     return(pass);
   }
  # cache foobar.com - optional www
   if (req.http.host ~ "(www\.)?foobar\.com") {
     return(lookup);
   }
}

Answer 2

是的，

在 vcl_recv 中，您只需匹配您不想缓存的主机并传递它们。像这样的东西（未经测试）：

vcl_recv {
   # dont cache foo.com or bar.com - optional www
   if (req.host ~ "(www)?(foo|bar).com") {
     return(pass);
   }
}

Answer 3

对于清漆 4

用哈希替换查找

默认.vcl：

sub vcl_recv {
  # dont cache foo.com or bar.com - optional www
   if (req.http.host ~ "(www\.)?(foo|bar)\.com") {
     return(pass);
   }
  # cache foobar.com - optional www
   if (req.http.host ~ "(www\.)?foobar\.com") {
     return(hash);
   }
}