我正在尝试使用 Varnish 向未登录的用户显示我网站的缓存版本。我可以完美地检测用户是否已登录或已退出，但如果没有扩展程序，我无法缓存页面。
没有文件扩展名，因为 nginx 正在将 URL 重写为 php 脚本（因此缓存 .php 不起作用）。
例如我希望 varnish 缓存：example.com example.com/forum/ example.com/contact/
我努力了
if (req.request == "GET" && req.url ~ "^/") {
return(lookup);
}
if (req.request == "GET" && req.url ~ "") {
return(lookup);
}
if (req.request == "GET" && req.url ~ "/") {
return(lookup);
}
但似乎没有什么作用...有什么帮助吗？
编辑：
每当我进入没有扩展的页面时，它仍然会给我 X-Cache：MISS......
当前的 VCL 是...
# This is a basic VCL configuration file for varnish. See the vcl(7)
# man page for details on VCL syntax and semantics.
#
# Default backend definition. Set this to point to your content
# server.
#
backend default {
.host = "127.0.0.1";
.port = "8080";
}
/* Only permit cluster to purge files from cache */
acl purge {
"localhost";
}
sub vcl_recv {
/* Before anything else we need to fix gzip compression */
if (req.http.Accept-Encoding) {
if (req.url ~ "\.(jpg|png|gif|gz|tgz|bz2|tbz|mp3|ogg)$") {
# No point in compressing these
remove req.http.Accept-Encoding;
} else if (req.http.Accept-Encoding ~ "gzip") {
set req.http.Accept-Encoding = "gzip";
} else if (req.http.Accept-Encoding ~ "deflate") {
set req.http.Accept-Encoding = "deflate";
} else {
# unknown algorithm
remove req.http.Accept-Encoding;
}
}
if (req.request == "PURGE") {
if (!client.ip ~ purge) {
error 405 "Not allowed.";
}
/* Always purge by URL rather than going via vcl_hash
as it hashes other factors which break purging */
purge_url(req.url);
error 200 "Purged";
}
#Remove cookies,remove queries and cache everything from content.gazamo-cdn.com
if (req.http.host == "content.gazamo-cdn.com") {
remove req.http.Cookie;
set req.url = regsub(req.url, "\?.*$", "");
}
#Atherys specific, if not logged in = cache; if logged in = pass
if (req.http.host == "atherys.com" || req.http.host == "www.atherys.com") {
if (req.http.Cookie ~ "xf_cache=1" && req.request == "GET") {
return(lookup);
if (req.request == "GET" && req.url ~ "^/") {
return(lookup);
}
}
}
# always cache these items:
if (req.request == "GET" && req.url ~ "\.(js|css)") {
remove req.http.Cookie;
return(lookup);
}
## images
if (req.request == "GET" && req.url ~ "\.(gif|jpg|jpeg|bmp|png|tiff|tif|ico|img|tga|wmf)$") {
remove req.http.Cookie;
return(lookup);
}
## various other content pages
if (req.request == "GET" && req.url ~ "\.(css|html)$") {
remove req.http.Cookie;
return(lookup);
}
## multimedia
if (req.request == "GET" && req.url ~ "\.(svg|swf|ico|mp3|mp4|m4a|ogg|mov|avi|wmv)$") {
remove req.http.Cookie;
return(lookup);
}
## various other content pages
if (req.request == "GET" && req.url ~ "\.(css|html)$") {
remove req.http.Cookie;
return(lookup);
}
## multimedia
if (req.request == "GET" && req.url ~ "\.(svg|swf|ico|mp3|mp4|m4a|ogg|mov|avi|wmv)$") {
remove req.http.Cookie;
return(lookup);
}
## xml
if (req.request == "GET" && req.url ~ "\.(xml)$") {
remove req.http.Cookie;
return(lookup);
}
#Do not cache
if (req.request != "GET" && req.request != "HEAD") {
return(pipe);
}
if (req.http.Authenticate || req.http.Authorization) {
return(pass);
}
### don't cache authenticated sessions
#if (req.http.Cookie && req.http.Cookie ~ "authtoken=") {
# return(pipe);
#}
}
sub vcl_deliver {
if (obj.hits > 0) {
set resp.http.X-Cache = "HIT";
} else {
set resp.http.X-Cache = "MISS";
}
}
另外，varnishlog：
0 CLI - Rd ping
0 CLI - Wr 200 PONG 1354732729 1.0
0 CLI - Rd ping
0 CLI - Wr 200 PONG 1354732732 1.0
12 SessionOpen c 86.50.90.54 62847 :80
12 ReqStart c 86.50.90.54 62847 1225125294
12 RxRequest c GET
12 RxURL c /forum/
12 RxProtocol c HTTP/1.1
12 RxHeader c Host: www.atherys.com
12 RxHeader c User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:16.0) Gecko/20100101 Firefox/16.0
12 RxHeader c Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
12 RxHeader c Accept-Language: fi-fi,fi;q=0.8,en-us;q=0.5,en;q=0.3
12 RxHeader c Accept-Encoding: gzip, deflate
12 RxHeader c Connection: keep-alive
12 RxHeader c Referer: http://www.atherys.com/forum/
12 RxHeader c Cookie: xf_session=xxxxxxxxxxxxxxxx; xf_cache=1
12 RxHeader c If-Modified-Since: Wed, 05 Dec 2012 18:27:16 GMT
12 VCL_call c recv
12 VCL_return c lookup
12 VCL_call c hash
12 VCL_return c hash
12 VCL_call c miss
12 VCL_return c fetch
14 BackendClose - default
14 BackendOpen b default 127.0.0.1 59671 127.0.0.1 8080
12 Backend c 14 default default
14 TxRequest b GET
14 TxURL b /forum/
14 TxProtocol b HTTP/1.1
14 TxHeader b Host: www.atherys.com
14 TxHeader b User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:16.0) Gecko/20100101 Firefox/16.0
14 TxHeader b Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
14 TxHeader b Accept-Language: fi-fi,fi;q=0.8,en-us;q=0.5,en;q=0.3
14 TxHeader b Referer: http://www.atherys.com/forum/
14 TxHeader b Cookie: xf_session=xxxxxxxxx; xf_cache=1
14 TxHeader b Accept-Encoding: gzip
14 TxHeader b X-Varnish: 1225125294
14 RxProtocol b HTTP/1.1
14 RxStatus b 200
14 RxResponse b OK
14 RxHeader b Server: nginx
14 RxHeader b Date: Wed, 05 Dec 2012 18:38:54 GMT
14 RxHeader b Content-Type: text/html; charset=UTF-8
14 RxHeader b Content-Length: 16013
14 RxHeader b Connection: keep-alive
14 RxHeader b Expires: Thu, 19 Nov 1981 08:52:00 GMT
14 RxHeader b Cache-control: private, max-age=0
14 RxHeader b Last-Modified: Wed, 05 Dec 2012 18:38:54 GMT
14 RxHeader b Content-Encoding: gzip
14 RxHeader b Vary: Accept-Encoding
12 TTL c 1225125294 RFC 0 1354732734 0 0 0 0
12 VCL_call c fetch
12 VCL_return c deliver
12 ObjProtocol c HTTP/1.1
12 ObjStatus c 200
12 ObjResponse c OK
12 ObjHeader c Server: nginx
12 ObjHeader c Date: Wed, 05 Dec 2012 18:38:54 GMT
12 ObjHeader c Content-Type: text/html; charset=UTF-8
12 ObjHeader c Expires: Thu, 19 Nov 1981 08:52:00 GMT
12 ObjHeader c Cache-control: private, max-age=0
12 ObjHeader c Last-Modified: Wed, 05 Dec 2012 18:38:54 GMT
12 ObjHeader c Content-Encoding: gzip
12 ObjHeader c Vary: Accept-Encoding
14 Length b 16013
14 BackendReuse b default
0 CLI - Rd ping
0 CLI - Wr 200 PONG 1354732735 1.0
12 VCL_call c deliver
12 VCL_return c deliver
12 TxProtocol c HTTP/1.1
12 TxStatus c 200
12 TxResponse c OK
12 TxHeader c Server: nginx
12 TxHeader c Content-Type: text/html; charset=UTF-8
12 TxHeader c Expires: Thu, 19 Nov 1981 08:52:00 GMT
12 TxHeader c Cache-control: private, max-age=0
12 TxHeader c Last-Modified: Wed, 05 Dec 2012 18:38:54 GMT
12 TxHeader c Content-Encoding: gzip
12 TxHeader c Vary: Accept-Encoding
12 TxHeader c Content-Length: 16013
12 TxHeader c Date: Wed, 05 Dec 2012 18:38:54 GMT
12 TxHeader c X-Varnish: 1225125294
12 TxHeader c Age: 0
12 TxHeader c Via: 1.1 varnish
12 TxHeader c Connection: keep-alive
12 TxHeader c X-Cache: MISS
12 Length c 16013
12 ReqEnd c 1225125294 1354732734.723051310 1354732735.044378281 0.000048399 0.204994202 0.116332769
12 Debug c "herding"
12 ReqStart c 86.50.90.54 62847 1225125295
12 RxRequest c GET
12 RxURL c /cron.php?1354732734
12 RxProtocol c HTTP/1.1
12 RxHeader c Host: www.atherys.com
12 RxHeader c User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:16.0) Gecko/20100101 Firefox/16.0
12 RxHeader c Accept: image/png,image/*;q=0.8,*/*;q=0.5
12 RxHeader c Accept-Language: fi-fi,fi;q=0.8,en-us;q=0.5,en;q=0.3
12 RxHeader c Accept-Encoding: gzip, deflate
12 RxHeader c Connection: keep-alive
12 RxHeader c Referer: http://www.atherys.com/forum/
12 RxHeader c Cookie: xf_session=xxxxxx; xf_cache=1
12 VCL_call c recv
12 VCL_return c lookup
12 VCL_call c hash
12 VCL_return c hash
12 VCL_call c miss
12 VCL_return c fetch
12 Backend c 14 default default
答案1
虽然在回答这个问题之前我确实有几个疑问，但我没有权利评论，所以就放在这里。
首先，从以上三条规则中，您只需要一条规则，即这条规则：
if (req.request == "GET" && req.url ~ "^/") {
return(lookup);
}
上述规则应该放在vcl_recv部分。
一旦你把这个规则放在那里，你就需要 vcl_fetch 部分中的另一个条目，如下所示：
if (req.url ~ "^/") {
set beresp.ttl = 7d;
}
这将定义 URL 的 ttl 并启用接下来 7 天的 URL 缓存。
如果它不起作用，如果您可以在这里发布您的 default.vcl 文件就太好了，同时，如果您的网站是公开的，那么就发布到该网站的链接，这样我们就可以进一步查看并弄清楚发生了什么。
答案2
这是一个相当复杂的设置，我的印象是它已经发展到非常笨重和难以理解的地步。
我看到的要点：
- 在 vcl_recv 中进行 varnish 查找似乎不是问题
- 您显示的示例请求指示 Vary 标头。默认情况下（因为您没有指定 vcl_fetch），这应该会导致 varnish 不将对象插入缓存中。
我建议先将配置缩减为较小的版本，然后看看是否可以让它缓存您正在讨论的一些示例页面。如果可以，请尝试避免使用 Vary 标头和 Cookies。