Feature Request: Cloudflare Edge Cache Purging via Cache Tags

[joelabreo227]

This is currently in alpha/discussion.

Prior art:

• https://developers.cloudflare.com/support/third-party-software/content-management-system-cms/cloudflare-wordpress-plugin-automatic-cache-management/

[mrrobot47]

Background

We want to add support for Cloudflare edge cache purging using cache tags, similar to the approach used in pantheon-systems/pantheon-advanced-page-cache. This will allow for more granular and efficient cache purging at the CDN layer.

Implementation

• Integrate Cloudflare SDK for API access.
• Emit cache tags for posts, terms, comments, and other WordPress objects.
• Add hooks to purge Cloudflare cache on all relevant WordPress events (post update, comment, term, user, option changes, etc.).
• Add admin UI for Cloudflare settings and manual purge.
• Add WP-CLI commands for Cloudflare cache management.
• Ensure Cloudflare cache purging works independently of Nginx/Redis cache.

Acceptance Criteria

• Cloudflare cache is purged on all events where Nginx/Redis cache would be purged.
• Manual and WP-CLI purges work for Cloudflare.