caching - Varnish 仅缓存特定的URL路径

Question

我正在尝试使用 Varnish 来缓存2个网站:

http://services.gradle.org

http://nodejs.org/dist/

我配置了2个DNS条目:nodejs-proxy和gradle-proxy

在我的浏览器中，如果我访问 http://gradle-proxy，我将被重定向到services.gradle.org的 Varnish 缓存网站。因此，这部分工作。

但是，我该如何配置它，以便我的 Varnish 机仅在进入 http://nodejs.org/dist/时才缓存并显示 http://nodejs-proxy？

我的default.vcl配置是:

backend gradle {
    .host = "207.223.250.8";
    .port = "80";
    .connect_timeout = 6000s;
    .first_byte_timeout = 6000s;
    .between_bytes_timeout = 6000s;
}

sub vcl_recv {
    # Happens before we check if we have this in cache already.
    #
    # Typically you clean up the request here, removing cookies you don't need,
    # rewriting the request, etc.

   if (req.http.host == "gradle-proxy.corp.appdynamics.com") {
      set req.backend_hint = gradle;
   }

    if (! req.url ~ "^/dist/") {
        return(pass);
    }
    return(lookup);

}

谢谢

Answer 1

嗯，我得到了rm的帮助:

if (! req.url ~ "^/dist/") {
    return(pass);
}
return(lookup);

并添加:

sub vcl_recv {
    if (req.http.host == "nodejs-proxy") {
            set req.http.host = "nodejs.org";
            set req.url = regsub(req.url, "^", "/dist");
    }
}

backend nodejs {
    .host = "165.225.133.150";
    .port = "80";
    .connect_timeout = 6000s;
    .first_byte_timeout = 6000s;
    .between_bytes_timeout = 6000s;
}