Purge Varnish on Save

gistfile1.txt

function varnish_purge($post_id)
{
    $hostname = 'localhost';
	$port     = 80;
	$URL      = get_permalink( $post_id );
	$debug    = false;

    // $finalURL = sprintf(
    //     "http://%s:%d%s", $hostname, $port, $URL
    // );
    $finalURL = $URL;
   
    $curlOptionList = array(
        CURLOPT_RETURNTRANSFER    => true,
        CURLOPT_CUSTOMREQUEST     => 'PURGE',
        CURLOPT_HEADER            => true ,
        CURLOPT_NOBODY            => true,
        CURLOPT_URL               => $finalURL,
        CURLOPT_CONNECTTIMEOUT_MS => 2000
    );

    $fd = false;
    if( $debug == true ) {
        print "-- Curl debug -----\n";
        $fd = fopen("php://output", 'w+');
        $curlOptionList[CURLOPT_VERBOSE] = true;
        $curlOptionList[CURLOPT_STDERR]  = $fd;
       
    }

    $curlHandler = curl_init();
    curl_setopt_array( $curlHandler, $curlOptionList );
    curl_exec( $curlHandler );
    curl_close( $curlHandler );
    if( $fd !== false ) {
        fclose( $fd );
    }
}
add_action( 'save_post', 'varnish_purge' );

Local IP or internal address for server must in the purgers IPs ie:

acl purge {
"localhost";
"127.0.0.1";
"10.210.66.197";
}