mirror of
https://github.com/ceph/ceph-csi.git
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82 lines
2.7 KiB
Go
82 lines
2.7 KiB
Go
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/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package rest
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import (
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"k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/util/uuid"
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)
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// WipeObjectMetaSystemFields erases fields that are managed by the system on ObjectMeta.
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func WipeObjectMetaSystemFields(meta metav1.Object) {
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meta.SetCreationTimestamp(metav1.Time{})
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meta.SetUID("")
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meta.SetDeletionTimestamp(nil)
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meta.SetDeletionGracePeriodSeconds(nil)
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meta.SetSelfLink("")
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}
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// FillObjectMetaSystemFields populates fields that are managed by the system on ObjectMeta.
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func FillObjectMetaSystemFields(meta metav1.Object) {
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meta.SetCreationTimestamp(metav1.Now())
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meta.SetUID(uuid.NewUUID())
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}
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// EnsureObjectNamespaceMatchesRequestNamespace returns an error if obj.Namespace and requestNamespace
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// are both populated and do not match. If either is unpopulated, it modifies obj as needed to ensure
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// obj.GetNamespace() == requestNamespace.
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func EnsureObjectNamespaceMatchesRequestNamespace(requestNamespace string, obj metav1.Object) error {
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objNamespace := obj.GetNamespace()
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switch {
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case objNamespace == requestNamespace:
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// already matches, no-op
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return nil
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case objNamespace == metav1.NamespaceNone:
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// unset, default to request namespace
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obj.SetNamespace(requestNamespace)
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return nil
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case requestNamespace == metav1.NamespaceNone:
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// cluster-scoped, clear namespace
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obj.SetNamespace(metav1.NamespaceNone)
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return nil
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default:
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// mismatch, error
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return errors.NewBadRequest("the namespace of the provided object does not match the namespace sent on the request")
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}
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}
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// ExpectedNamespaceForScope returns the expected namespace for a resource, given the request namespace and resource scope.
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func ExpectedNamespaceForScope(requestNamespace string, namespaceScoped bool) string {
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if namespaceScoped {
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return requestNamespace
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}
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return ""
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}
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// ExpectedNamespaceForResource returns the expected namespace for a resource, given the request namespace.
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func ExpectedNamespaceForResource(requestNamespace string, resource schema.GroupVersionResource) string {
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if resource.Resource == "namespaces" && resource.Group == "" {
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return ""
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}
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return requestNamespace
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}
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