Fix fake clientsets in metrics.k8s.io.

The generated fake clientsets were using the API group "metrics" instead
of "metrics.k8s.io". This patch includes a test that fails without the
fix.

The `+groupName` annotation needed to be copied to the v1alpha1 and
v1beta1 packages to fix it.

As a result, tests using this fake clientset work as expected.

Author: Jonathan Basseri

staging/src/k8s.io/metrics/BUILD

@@ -13,6 +13,7 @@ filegroup(
         "//staging/src/k8s.io/metrics/pkg/apis/external_metrics:all-srcs",
         "//staging/src/k8s.io/metrics/pkg/apis/metrics:all-srcs",
         "//staging/src/k8s.io/metrics/pkg/client/clientset/versioned:all-srcs",
+        "//staging/src/k8s.io/metrics/pkg/client/clientset_test:all-srcs",
         "//staging/src/k8s.io/metrics/pkg/client/custom_metrics:all-srcs",
         "//staging/src/k8s.io/metrics/pkg/client/external_metrics:all-srcs",
     ],

staging/src/k8s.io/metrics/pkg/apis/metrics/v1alpha1/doc.go

@@ -18,5 +18,6 @@ limitations under the License.
 // +k8s:protobuf-gen=package
 // +k8s:conversion-gen=k8s.io/metrics/pkg/apis/metrics
 // +k8s:openapi-gen=true
+// +groupName=metrics.k8s.io
 
 package v1alpha1

staging/src/k8s.io/metrics/pkg/apis/metrics/v1beta1/doc.go

@@ -18,5 +18,6 @@ limitations under the License.
 // +k8s:protobuf-gen=package
 // +k8s:conversion-gen=k8s.io/metrics/pkg/apis/metrics
 // +k8s:openapi-gen=true
+// +groupName=metrics.k8s.io
 
 package v1beta1

staging/src/k8s.io/metrics/pkg/client/clientset/versioned/typed/metrics/v1alpha1/fake/fake_nodemetrics.go

@@ -0,0 +1,24 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_test")
+
+go_test(
+    name = "go_default_test",
+    srcs = ["clientset_test.go"],
+    deps = [
+        "//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
+        "//staging/src/k8s.io/metrics/pkg/client/clientset/versioned/fake:go_default_library",
+    ],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+)