eZ Platform being built on top of Symfony, it uses standard HTTP cache headers. By default the Symfony reverse proxy, written in PHP, is used to handle cache, but it can be easily replaced with any other reverse proxy like Varnish.

Use of Varnish is a requirement for use in Clustering setup, for overview of clustering feature see Clustering. 

Prerequisites

• A working Varnish 3 or Varnish 4 setup.

Recommended VCL base files

For Varnish to work properly with eZ, you'll need to use one of the provided files as a basis:

• Varnish 3 VCL example
• Varnish 4 VCL example

Note: Http cache management is done with the help of FOSHttpCacheBundle. You may need to tweak your VCL further on according to FOSHttpCache documentation in order to use features supported by it.

Configure eZ Publish

Update your Virtual Host

On apache:

On nginx:

Update YML configuration