UPSTREAM: <carry>: kube-apiserver: add our immortal namespaces directly to admission plugin

OpenShift-Rebase-Source: dd3aeca

Author: deads2k

staging/src/k8s.io/apiserver/pkg/admission/plugin/namespace/lifecycle/admission.go

@@ -54,7 +54,16 @@ const (
 // Register registers a plugin
 func Register(plugins *admission.Plugins) {
 	plugins.Register(PluginName, func(config io.Reader) (admission.Interface, error) {
-		return NewLifecycle(sets.NewString(metav1.NamespaceDefault, metav1.NamespaceSystem, metav1.NamespacePublic))
+		return NewLifecycle(sets.NewString(metav1.NamespaceDefault, metav1.NamespaceSystem, metav1.NamespacePublic,
+			// user specified configuration that cannot be rebuilt
+			"openshift-config",
+			// cluster generated configuration that cannot be rebuilt (etcd encryption keys)
+			"openshift-config-managed",
+			// the CVO which is the root we use to rebuild all the rest
+			"openshift-cluster-version",
+			// contains a namespaced list of all nodes in the cluster (yeah, weird.  they do it for multi-tenant management I think?)
+			"openshift-machine-api",
+		))
 	})
 }