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A WordPress plugin for purging Varnish cache when content is published or edited.

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WordPress Varnish

  • Contributors: pkhamre, wfelipe, eitch, linickx
  • Donate link: http://github.com/pkhamre/wp-varnish
  • Tags: cache, caching, performance, varnish, purge, speed
  • Requires at least: 2.9.2
  • Tested up to: 2.9.2
  • Stable tag: 0.3

WordPress Varnish is a simple plugin that purges new and edited content.

Description

This plugin purges your varnish cache when content is added or edited. This includes when a new post is added, a post is updated or when a comment is posted to your blog.

To keep widgets like "Recent posts", "Recent comments" and such up to date, you should consider using ESI and include them through a text widget for arbitrary text or HTML.

Installation

This section describes how to install the plugin and get it working.

  1. Upload wp-varnish/ to the /wp-content/plugins/ directory
  2. Activate the plugin through the 'Plugins' menu in WordPress

Frequently Asked Questions

Does this just work?

Yes.

But how should my varnish configuration file look like?

I have provided a simple VCL that can be used as a reference.

Does it work for Multi-Site (or WPMU)?

Yes. Activating the plugin site-wide will provide the functionality to all blogs. Configuration can be done on the blogs individually, or can be global. If you want to configure Varnish servers globally, edit wp-config.php and include these lines just before "That's all, stop editing!" message:

global $varnish_servers; $varnish_servers = array('192.168.0.1:80','192.168.0.2:80'); define('VARNISH_SHOWCFG',1);

The varnish servers array will configure multiple servers for sending the purges. If VARNISH_SHOWCFG is defined, configuration will be shown to all users who access the plugin configuration page (but they can't edit it).

Screenshots

  1. Screenshot of the adminstration interface.

Changelog

0.3

  • Added internationalization code. Included pt_BR translation.
  • Support to Multi-Site and WPMU with global configuration.
  • Fix on URL purges for multiple domains and blogs on sub-directories.
  • Code clean up on some functions.
  • Added configuration for purging all blog, page and comments navigation.

0.2

  • Added multiple servers support and timeout configuration.

0.1

  • Initial release.

Upgrade Notice

0.3

  • Varnish PURGE configuration must support regex. wp-varnish will sometimes request with regex for special purges like refreshing all blog cache and refreshing comments.

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A WordPress plugin for purging Varnish cache when content is published or edited.

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