Using Varnish with WordPress (#wcilm)
- 2. the_content(); Introduction @tiffanyakuchta WARNING: There will be several references to popular culture, a bitmoji and some memes in this talk...also a dragon and a bunny. I apologize in advance regret nothing... #WCILM
- 4. This is the best. Code. Ever. @tiffanyakuchta
- 6. OPTIMIZE Follow the Google Pagespeed instructions. Tune your environment. Add resources. Add query and object caching. Code review. @tiffanyakuchta
- 9. TIME TO FIRST BYTE @tiffanyakuchta
- 10. OPTIMIZE Follow the Google Pagespeed instructions. Tune your environment. Add resources. Add query and object caching. Code review. @tiffanyakuchta
- 12. WORDPRESS CACHING RESOURCES W3 Total Cache WP Super Cache WP Rocket WordPress Super Ultra Awesome Cache for Smartypantses @tiffanyakuchta LMGTFY
- 13. @tiffanyakuchta
- 14. VARNISH IS A REVERSE PROXY @tiffanyakuchta NORMAL WITH VARNISH
- 15. @tiffanyakuchta
- 16. LET’S JUMP RIGHT IN Install & configure Varnish on the server. Customize VCL. Cache invalidation & purge requests. @tiffanyakuchta https://www.varnish-software.com/wiki/content/tutorials/wordpress/wp_step_by_step.html
- 17. Install and configure Varnish on your server. @tiffanyakuchta
- 18. INSTALL & CONFIG @tiffanyakuchta Varnish:80 Backend:8080 https://www.varnish-software.com/wiki/content/tutorials/varnish/varnish_ubuntu.html#step-3-configure-apache2-to-work-with-varnish
- 19. VARNISH DEFAULTS Only attempt to cache GET and HEAD request Never cache request with cookies / authorization Never cache response with set-cookie Only cache safe responses (200, 203, 300, 301, 302, 307, 404, 410,418) @tiffanyakuchta
- 21. MAKE VARNISH AWARE OF WORDPRESS @tiffanyakuchta Ignore WordPress cookies. Exclude some URLs. Ignore POST and AJAX requests. Don’t cache automation tasks (wp-cron). https://www.varnish-software.com/wiki/content/tutorials/wordpress/wp_step_by_step.html https://www.varnish-software.com/wiki/content/tutorials/wordpress/wp_vcl.html
- 22. OTHER THINGS YOU CONTROL WITH VCL @tiffanyakuchta Time to Live. Handling of purge requests. & so much more. https://www.varnish-software.com/wiki/content/tutorials/varnish/vcl.html
- 25. IT’S PLUGIN TIME! @tiffanyakuchta Varnish HTTP Purge https://wordpress.org/plugins/varnish-http-purge/ Support for Varnish 3.x
- 26. MAKE VARNISH AWARE OF WORDPRESS @tiffanyakuchta Ignore WordPress cookies. Exclude some URLs. Ignore POST and AJAX requests. Don’t cache automation tasks (wp-cron).
- 27. USE CASES Some things should never be cached. You need to cache some things more aggressively than others. You need to cache per-user (or per-group) content. @tiffanyakuchta
- 28. STRATEGIES AJAX Move logic to the frontend Edge Side Includes @tiffanyakuchta
- 32. REMINDERS Randomized things. User-specific tracking and analytics data. Reliability of scheduled tasks. Logs? @tiffanyakuchta
- 34. @tiffanyakuchta
- 35. SSL/TLS You must terminate. HAProxy, Pound, Hitch. HTTP_X_FORWARDED_PROTO Detect the header, then set the variable, so is_ssl() works. @tiffanyakuchta
- 37. Performance is great, but will it scale? @tiffanyakuchta
- 38. @tiffanyakuchta
- 39. GRACE MODE Allows Varnish to serve stale content to some users while new content is being generated by the backend. @tiffanyakuchta https://varnish-cache.org/docs/trunk/users-guide/vcl-grace.html
- 44. CREDITS Assorted gifs from giphy.com Retro 80s image generated by Retrowave: https://m.photofunia.com/effects/retro-wave All logos and brand images (Varnish, WordPress, anything else I used by accident) property of their respective owners. @tiffanyakuchta