Merge pull request #43698 from sttts/sttts-non-global-admission-plugin-registry

Automatic merge from submit-queue

Non global admission plugin registry

For testing the global state is a problem. This PR turns the actual registry into a struct that must be instantiated. For the beginning, we do this in `pkg/kubeapiserver/admission`. In some follow-up (where we hunt down all globals some day), we will move this into the genericapiserver.

pkg/kubeapiserver/admission/BUILD

@@ -21,7 +21,10 @@ go_test(
 
 go_library(
     name = "go_default_library",
-    srcs = ["initializer.go"],
+    srcs = [
+        "initializer.go",
+        "registry.go",
+    ],
     tags = ["automanaged"],
     deps = [
         "//pkg/client/clientset_generated/internalclientset:go_default_library",

pkg/kubeapiserver/admission/registry.go

@@ -0,0 +1,24 @@
+/*
+Copyright 2016 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package admission
+
+import (
+	"k8s.io/apiserver/pkg/admission"
+)
+
+// Plugins is a global registry for admission plugins.
+var Plugins = admission.Plugins{}