Varnish purger
This module integrates with the Purge module to invalidate content in Varnish. It allows for clearing cached content from Varnish using BAN commands and offers basic support for image bans.
What is this?
This is the Varnish purger for the Purge module.
Project name and module name
Because of some bad naming in the start - the project name is varnish_purge, but the module itself is called varnish_purger. Sorry for that, but it's hard to move namespace after you have registred one.
Varnish configuration
To work with cache tags you need to have a Varnish vcl-file that implements is, here is a suggestion for defaul.vcl for Varnish 4 and using BAN.
Supported Varnish versions
This module has nothing to do with which version of version you are using, as long as Varnish supports BANs, this module should work - so use Varnish 3 and up with this module.
Image bans
Since release of 8.x-1.7 we now have basic support for image bans with the sub module varnish_image_purge, using a VCL setting like the following:
sub vcl_recv {
if (req.method == "URIBAN") {
ban("req.http.host == " + req.http.host + " && req.url == " + req.url);
# Throw a synthetic page so the request won't go to the backend.
return (synth(200, "Ban added."));
}
}