Add class filer for k8s pipelines.

Fixes PROD-21997

Change-Id: Iaabbf2f22414163869bcbfb025cc1947fa556e0f
diff --git a/cloud-deploy-pipeline.groovy b/cloud-deploy-pipeline.groovy
index bf7e238..25892df 100644
--- a/cloud-deploy-pipeline.groovy
+++ b/cloud-deploy-pipeline.groovy
@@ -374,8 +374,8 @@
                     }
 
                     // ensure certificates are generated properly
-                    salt.runSaltProcessStep(venvPepper, "* ${extra_tgt}", 'saltutil.refresh_pillar', [], null, true)
-                    salt.enforceState(venvPepper, "* ${extra_tgt}", ['salt.minion.cert'], true)
+                    salt.runSaltProcessStep(venvPepper, "I@kubernetes:* ${extra_tgt}", 'saltutil.refresh_pillar', [], null, true)
+                    salt.enforceState(venvPepper, "I@kubernetes:* ${extra_tgt}", ['salt.minion.cert'], true)
                 }
 
                 if (common.checkContains('STACK_INSTALL', 'contrail')) {