I am building a Varnish reverse proxy which will balance between 2 servers with different files. Server 1 contains 500 folders ranging from 000 - 499. Server 2 had 500 folders ranging from 500 - 999.
The senario is exactly the same as Squid Regular Expression Folder Range
I'm struggling with the Regular expression as we can get to 500 - 999 but not 000 to 499
My config file is as follows for Varnish 3.0.2 which currently goes to folder 500 - 999 without issues on the second box but nothing on the first box.
# access control list for "purge": open to only localhost and other local nodes
acl purge {
"localhost";
}
backend default {
.host = "localhost";
.port = "80";
}
backend images02 {
.host = "images02.test.local";
.port = "80";
.probe = { .url = "/server_status.php"; .interval = 5s; .timeout = 1s; .window = 5;.threshold = 3; }
}
backend images03 {
.host = "images03.test.local";
.port = "80";
.probe = { .url = "/server_status.php"; .interval = 5s; .timeout = 1s; .window = 5;.threshold = 3; }
}
sub vcl_recv {
# Serve objects up to 2 minutes past their expiry if the backend
# is slow to respond.
set req.grace = 120s;
# This uses the ACL action called "purge". Basically if a request to
# PURGE the cache comes from anywhere other than localhost, ignore it.
if (req.request == "PURGE")
{if (!client.ip ~ purge)
{error 405 "Not allowed.";}
return(lookup);}
if (req.http.host ~ "[0-4]{1}[0-9]{1}[0-9]{1}" )
{ set req.backend = images02; }
else
{ set req.backend = images03; }
return(lookup);
}