CDN Cache Invalidator

• Tags: cache, flush, expire, purge, invalidate, cloudfront, modified
• Requires at least: 3.5.1
• Tested up to: 4.1.1
• Stable tag: 4.1.1
• License: GPLv2
• License URI: http://www.gnu.org/licenses/gpl-2.0.html

Flush recently modified posts from CloudFront cache.

Description

A plugin to invalidate recently updated pages from CDNs. Currently only Amazon Web Services CloudFront is supported. The posts that were modified since the last flush will automatically be added to a list of candidate URLs, and will be expanded to include their parents and any user hooked expansions.

Installation

1. Upload plugin-name.php to the /wp-content/plugins/cdn-cache-invalidator directory
2. Activate the plugin through the 'Plugins' menu in WordPress
3. Sign in as the Administrator and go to Settings->CloudFront
4. Enter your AWS Key ID and it's secret.
5. Enter the CloudFront distribution ID. It's displayed in the ID column and starts with a capital letter E.
6. Click save settings. If everything worked, the distribution domain name should be now displayed underneath the distribution ID input box.

Frequently asked questions

How do I clear URLs from cache?

After plugin configuration a new menu item called "Clear Cache" with a globe icon will appear. The URLs related to the recently changed pages and posts will be populated in the text area. Alternatively, URLs can be added there manually as well. Clicking the Submit button will create an invalidation request with CloudFront.

Removal

1. Remove the plugin directory "/wp-content/plugins/cdn-cache-invalidator"
2. Clean the settings saved in the MySQL database: DELETE FROM wp_options WHERE option_name LIKE 'cdn_cache_invalidator_%';

Screenshots

1. screenshot-1.png
2. screenshot-2.png

Changelog

Version 0.5 (29-03-2015)

• Initial release with AWS CloudFront support