SWIS Varnish Integration

swis-varnish-integration.php

<?php
/*
Plugin Name: SWIS Varnish Integration
Version: 1.0.0
*/

// This enables auto-purge, but only if the X-Varnish header is also detected by SWIS.
add_filter( 'swis_varnish_cache_purge', '__return_true' );

// The default purge IP/destination is 127.0.0.1, so if your server uses a different IP or port for Varnish,
// uncomment the next line and change the IP/Port in the function below.
// add_filter( 'swis_varnish_ips', 'swis_custom_varnish_ips' );
function swis_custom_varnish_ips( $varnish_ips ) {
	return array( '127.0.0.1:6081' );
}

// Uncomment the next line to change the HTTP method used to BAN.
//add_filter( 'swis_varnish_url_purge_method', 'swis_custom_varnish_url_purge_method' );
function swis_custom_varnish_url_purge_method( $purge_method ) {
	return 'BAN';
}

// Additional filters that are available include:
// swis_varnish_full_purge_regex, the purge regex defaults to '.*'
// swis_varnish_x_purge_method_header, uses 'regex' if the above is non-empty, 'default' otherwise.