Worked with a new client this week and needed to get the VCL working for their installation. They were running W3TC, but, this VCL should work for people running WP-Varnish or any plugin that allows Purging. This VCL is for Varnish 2.x.<\/p>\n
There are still some tweaks, but, this appears to be working quite well.<\/p>\n
\r\nbackend default {\r\n .host = \"127.0.0.1\";\r\n .port = \"8080\";\r\n}\r\n\r\nacl purge {\r\n \"10.0.1.100\";\r\n \"10.0.1.101\";\r\n \"10.0.1.102\";\r\n \"10.0.1.103\";\r\n \"10.0.1.104\";\r\n}\r\n\r\nsub vcl_recv {\r\n if (req.request == \"PURGE\") {\r\n if (!client.ip ~ purge) {\r\n error 405 \"Not allowed.\";\r\n }\r\n return(lookup);\r\n }\r\n\r\n if (req.http.Accept-Encoding) {\r\n#revisit this list\r\n if (req.url ~ \"\\.(gif|jpg|jpeg|swf|flv|mp3|mp4|pdf|ico|png|gz|tgz|bz2)(\\?.*|)$\") {\r\n remove req.http.Accept-Encoding;\r\n } elsif (req.http.Accept-Encoding ~ \"gzip\") {\r\n set req.http.Accept-Encoding = \"gzip\";\r\n } elsif (req.http.Accept-Encoding ~ \"deflate\") {\r\n set req.http.Accept-Encoding = \"deflate\";\r\n } else {\r\n remove req.http.Accept-Encoding;\r\n }\r\n }\r\n if (req.url ~ \"\\.(gif|jpg|jpeg|swf|css|js|flv|mp3|mp4|pdf|ico|png)(\\?.*|)$\") {\r\n unset req.http.cookie;\r\n set req.url = regsub(req.url, \"\\?.*$\", \"\");\r\n }\r\n if (req.http.cookie) {\r\n if (req.http.cookie ~ \"(wordpress_|wp-settings-)\") {\r\n return(pass);\r\n } else {\r\n unset req.http.cookie;\r\n }\r\n }\r\n}\r\n\r\nsub vcl_fetch {\r\n# this conditional can probably be left out for most installations\r\n# as it can negatively impact sites without purge support. High\r\n# traffic sites might leave it, but, it will remove the WordPress\r\n# 'bar' at the top and you won't have the post 'edit' functions onscreen.\r\n if ( (!(req.url ~ \"(wp-(login|admin)|login)\")) || (req.request == \"GET\") ) {\r\n unset beresp.http.set-cookie;\r\n# If you're not running purge support with a plugin, remove\r\n# this line.\r\n set beresp.ttl = 5m;\r\n }\r\n if (req.url ~ \"\\.(gif|jpg|jpeg|swf|css|js|flv|mp3|mp4|pdf|ico|png)(\\?.*|)$\") {\r\n set beresp.ttl = 365d;\r\n }\r\n}\r\n\r\nsub vcl_deliver {\r\n# multi-server webfarm? set a variable here so you can check\r\n# the headers to see which frontend served the request\r\n# set resp.http.X-Server = \"server-01\";\r\n if (obj.hits > 0) {\r\n set resp.http.X-Cache = \"HIT\";\r\n } else {\r\n set resp.http.X-Cache = \"MISS\";\r\n }\r\n}\r\n\r\nsub vcl_hit {\r\n if (req.request == \"PURGE\") {\r\n set obj.ttl = 0s;\r\n error 200 \"OK\";\r\n }\r\n}\r\n\r\nsub vcl_miss {\r\n if (req.request == \"PURGE\") {\r\n error 404 \"Not cached\";\r\n }\r\n}\r\n<\/pre>\n\n<\/div>\n<\/fb:like>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"Worked with a new client this week and needed to get the VCL working for their installation. They were running W3TC, but, this VCL should work for people running WP-Varnish or any plugin that allows Purging. This VCL is for Varnish 2.x. There are still some tweaks, but, this appears to be working quite well. […]<\/p>\n
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