MAGETWO-64713: [GitHub] [PR] Adds support for purging varnish cache based on an X-Pool header #4106

Author: Magento CICD

app/code/Magento/PageCache/etc/varnish4.vcl

@@ -26,10 +26,18 @@ sub vcl_recv {
         if (client.ip !~ purge) {
             return (synth(405, "Method not allowed"));
         }
-        if (!req.http.X-Magento-Tags-Pattern) {
-            return (synth(400, "X-Magento-Tags-Pattern header required"));
+        # To use the X-Pool header for purging varnish during automated deployments, make sure the X-Pool header
+        # has been added to the response in your backend server config. This is used, for example, by the
+        # capistrano-magento2 gem for purging old content from varnish during it's deploy routine.
+        if (!req.http.X-Magento-Tags-Pattern && !req.http.X-Pool) {
+            return (synth(400, "X-Magento-Tags-Pattern or X-Pool header required"));
+        }
+        if (req.http.X-Magento-Tags-Pattern) {
+          ban("obj.http.X-Magento-Tags ~ " + req.http.X-Magento-Tags-Pattern);
+        }
+        if (req.http.X-Pool) {
+          ban("obj.http.X-Pool ~ " + req.http.X-Pool);
         }
-        ban("obj.http.X-Magento-Tags ~ " + req.http.X-Magento-Tags-Pattern);
         return (synth(200, "Purged"));
     }
 

app/code/Magento/PageCache/etc/varnish5.vcl

@@ -27,10 +27,18 @@ sub vcl_recv {
         if (client.ip !~ purge) {
             return (synth(405, "Method not allowed"));
         }
-        if (!req.http.X-Magento-Tags-Pattern) {
-            return (synth(400, "X-Magento-Tags-Pattern header required"));
+        # To use the X-Pool header for purging varnish during automated deployments, make sure the X-Pool header
+        # has been added to the response in your backend server config. This is used, for example, by the
+        # capistrano-magento2 gem for purging old content from varnish during it's deploy routine.
+        if (!req.http.X-Magento-Tags-Pattern && !req.http.X-Pool) {
+            return (synth(400, "X-Magento-Tags-Pattern or X-Pool header required"));
+        }
+        if (req.http.X-Magento-Tags-Pattern) {
+          ban("obj.http.X-Magento-Tags ~ " + req.http.X-Magento-Tags-Pattern);
+        }
+        if (req.http.X-Pool) {
+          ban("obj.http.X-Pool ~ " + req.http.X-Pool);
         }
-        ban("obj.http.X-Magento-Tags ~ " + req.http.X-Magento-Tags-Pattern);
         return (synth(200, "Purged"));
     }