diff options
Diffstat (limited to 'vendor/k8s.io/kubernetes/pkg/apis/core/pods/helpers.go')
-rw-r--r-- | vendor/k8s.io/kubernetes/pkg/apis/core/pods/helpers.go | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/vendor/k8s.io/kubernetes/pkg/apis/core/pods/helpers.go b/vendor/k8s.io/kubernetes/pkg/apis/core/pods/helpers.go new file mode 100644 index 000000000..cf199cee7 --- /dev/null +++ b/vendor/k8s.io/kubernetes/pkg/apis/core/pods/helpers.go @@ -0,0 +1,63 @@ +/* +Copyright 2017 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 pods + +import ( + "fmt" + + "k8s.io/kubernetes/pkg/fieldpath" +) + +// ConvertDownwardAPIFieldLabel converts the specified downward API field label +// and its value in the pod of the specified version to the internal version, +// and returns the converted label and value. This function returns an error if +// the conversion fails. +func ConvertDownwardAPIFieldLabel(version, label, value string) (string, string, error) { + if version != "v1" { + return "", "", fmt.Errorf("unsupported pod version: %s", version) + } + + if path, _, ok := fieldpath.SplitMaybeSubscriptedPath(label); ok { + switch path { + case "metadata.annotations", "metadata.labels": + return label, value, nil + default: + return "", "", fmt.Errorf("field label does not support subscript: %s", label) + } + } + + switch label { + case "metadata.annotations", + "metadata.labels", + "metadata.name", + "metadata.namespace", + "metadata.uid", + "spec.nodeName", + "spec.restartPolicy", + "spec.serviceAccountName", + "spec.schedulerName", + "status.phase", + "status.hostIP", + "status.podIP": + return label, value, nil + // This is for backwards compatibility with old v1 clients which send spec.host + case "spec.host": + return "spec.nodeName", value, nil + default: + return "", "", fmt.Errorf("field label not supported: %s", label) + } +} |