Update to kube v1.17

Signed-off-by: Humble Chirammal <hchiramm@redhat.com>

vendor/k8s.io/apiserver/pkg/admission/errors.go

@@ -0,0 +1,72 @@
+/*
+Copyright 2015 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 (
+	apierrors "k8s.io/apimachinery/pkg/api/errors"
+	"k8s.io/apimachinery/pkg/api/meta"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	utilerrors "k8s.io/apimachinery/pkg/util/errors"
+)
+
+func extractResourceName(a Attributes) (name string, resource schema.GroupResource, err error) {
+	resource = a.GetResource().GroupResource()
+
+	if len(a.GetName()) > 0 {
+		return a.GetName(), resource, nil
+	}
+
+	name = "Unknown"
+	obj := a.GetObject()
+	if obj != nil {
+		accessor, err := meta.Accessor(obj)
+		if err != nil {
+			// not all object have ObjectMeta.  If we don't, return a name with a slash (always illegal)
+			return "Unknown/errorGettingName", resource, nil
+		}
+
+		// this is necessary because name object name generation has not occurred yet
+		if len(accessor.GetName()) > 0 {
+			name = accessor.GetName()
+		} else if len(accessor.GetGenerateName()) > 0 {
+			name = accessor.GetGenerateName()
+		}
+	}
+	return name, resource, nil
+}
+
+// NewForbidden is a utility function to return a well-formatted admission control error response
+func NewForbidden(a Attributes, internalError error) error {
+	// do not double wrap an error of same type
+	if apierrors.IsForbidden(internalError) {
+		return internalError
+	}
+	name, resource, err := extractResourceName(a)
+	if err != nil {
+		return apierrors.NewInternalError(utilerrors.NewAggregate([]error{internalError, err}))
+	}
+	return apierrors.NewForbidden(resource, name, internalError)
+}
+
+// NewNotFound is a utility function to return a well-formatted admission control error response
+func NewNotFound(a Attributes) error {
+	name, resource, err := extractResourceName(a)
+	if err != nil {
+		return apierrors.NewInternalError(err)
+	}
+	return apierrors.NewNotFound(resource, name)
+}