No instructions here yet, just a bare configuration.
/etc/varnish/default.vcl
backend default {
.host = "127.0.0.1";
.port = "8080";
.connect_timeout = 600s;
.first_byte_timeout = 600s;
.between_bytes_timeout = 600s;
}
sub vcl_recv {
if (req.request != "GET" &&
req.request != "HEAD" &&
req.request != "PUT" &&
req.request != "POST" &&
req.request != "TRACE" &&
req.request != "OPTIONS" &&
req.request != "DELETE") {
// Non-RFC2616 or CONNECT which is weird.
return (pipe);
}
if (req.request != "GET" && req.request != "HEAD") {
// We only deal with GET and HEAD by default
return (pass);
}
// Remove has_js and Google Analytics cookies.
set req.http.Cookie = regsuball(req.http.Cookie, "(^|;\s*)(__[a-z]+|__utma_a2a|has_js)=[^;]*", "");
// To users: if you have additional cookies being set by your system (e.g.
// from a javascript analytics file or similar) you will need to add VCL
// at this point to strip these cookies from the req object, otherwise
// Varnish will not cache the response. This is safe for cookies that your
// backend (Drupal) doesn't process.
//
// Again, the common example is an analytics or other Javascript add-on.
// You should do this here, before the other cookie stuff, or by adding
// to the regular-expression above.
// Remove a ";" prefix, if present.
set req.http.Cookie = regsub(req.http.Cookie, "^;\s*", "");
// Remove empty cookies.
if (req.http.Cookie ~ "^\s*$") {
unset req.http.Cookie;
}
if (req.http.Authorization || req.http.Cookie) {
// Not cacheable by default
return (pass);
}
// Skip the Varnish cache for install, update, and cron
if (req.url ~ "install\.php|update\.php|cron\.php") {
return (pass);
}
// Normalize the Accept-Encoding header
// as per: http://varnish-cache.org/wiki/FAQ/Compression
if (req.http.Accept-Encoding) {
if (req.url ~ "\.(jpg|png|gif|gz|tgz|bz2|tbz|mp3|ogg)$") {
# No point in compressing these
remove req.http.Accept-Encoding;
}
elsif (req.http.Accept-Encoding ~ "gzip") {
set req.http.Accept-Encoding = "gzip";
}
else {
# Unknown or deflate algorithm
remove req.http.Accept-Encoding;
}
}
// Let's have a little grace
set req.grace = 30s;
return (lookup);
}
sub vcl_hash {
if (req.http.Cookie) {
hash_data (req.http.Cookie);
}
}
// Strip any cookies before an image/js/css is inserted into cache.
sub vcl_fetch {
if (req.url ~ "\.(png|gif|jpg|swf|css|js)$") {
// For Varnish 2.0 or earlier, replace beresp with obj:
// unset obj.http.set-cookie;
unset beresp.http.set-cookie;
}
}
// Set a header to track a cache HIT/MISS.
sub vcl_deliver {
if (obj.hits > 0) {
set resp.http.X-Varnish-Cache = "HIT";
}
else {
set resp.http.X-Varnish-Cache = "MISS";
}
}
sub vcl_error {
// Let's deliver a friendlier error page.
// You can customize this as you wish.
set obj.http.Content-Type = "text/html; charset=utf-8";
synthetic {"
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>"} + obj.status + " " + obj.response + {"</title>
<style type="text/css">
#page {width: 400px; padding: 10px; margin: 20px auto; border: 1px solid black; background-color: #FFF;}
p {margin-left:20px;}
body {background-color: #DDD; margin: auto;}
</style>
</head>
<body>
<div id="page">
<h1>Page Could Not Be Loaded</h1>
<p>We're very sorry, but the page could not be loaded properly. This should be fixed very soon, and we apologize for any inconvenience.</p>
<hr />
<h4>Debug Info:</h4>
<pre>Status: "} + obj.status + {"
Response: "} + obj.response + {"
XID: "} + req.xid + {"</pre>
</div>
</body>
</html>
"};
return(deliver);
}