mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
synced 2025-11-03 19:58:17 +00:00
118 lines
3.6 KiB
Go
118 lines
3.6 KiB
Go
/*
|
|
Copyright 2014 The Kubernetes Authors All rights reserved.
|
|
|
|
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.
|
|
*/
|
|
|
|
// A set of common functions needed by cmd/kubectl and pkg/kubectl packages.
|
|
package kubectl
|
|
|
|
import (
|
|
"strings"
|
|
|
|
"k8s.io/kubernetes/pkg/api"
|
|
"k8s.io/kubernetes/pkg/api/meta"
|
|
)
|
|
|
|
const kubectlAnnotationPrefix = "kubectl.kubernetes.io/"
|
|
|
|
type NamespaceInfo struct {
|
|
Namespace string
|
|
}
|
|
|
|
func listOfImages(spec *api.PodSpec) []string {
|
|
var images []string
|
|
for _, container := range spec.Containers {
|
|
images = append(images, container.Image)
|
|
}
|
|
return images
|
|
}
|
|
|
|
func makeImageList(spec *api.PodSpec) string {
|
|
return strings.Join(listOfImages(spec), ",")
|
|
}
|
|
|
|
// OutputVersionMapper is a RESTMapper that will prefer mappings that
|
|
// correspond to a preferred output version (if feasible)
|
|
type OutputVersionMapper struct {
|
|
meta.RESTMapper
|
|
OutputVersion string
|
|
}
|
|
|
|
// RESTMapping implements meta.RESTMapper by prepending the output version to the preferred version list.
|
|
func (m OutputVersionMapper) RESTMapping(kind string, versions ...string) (*meta.RESTMapping, error) {
|
|
preferred := []string{m.OutputVersion}
|
|
for _, version := range versions {
|
|
if len(version) > 0 {
|
|
preferred = append(preferred, version)
|
|
}
|
|
}
|
|
// if the caller wants to use the default version list, try with the preferred version, and on
|
|
// error, use the default behavior.
|
|
if len(preferred) == 1 {
|
|
if m, err := m.RESTMapper.RESTMapping(kind, preferred...); err == nil {
|
|
return m, nil
|
|
}
|
|
preferred = nil
|
|
}
|
|
return m.RESTMapper.RESTMapping(kind, preferred...)
|
|
}
|
|
|
|
// ShortcutExpander is a RESTMapper that can be used for Kubernetes
|
|
// resources.
|
|
type ShortcutExpander struct {
|
|
meta.RESTMapper
|
|
}
|
|
|
|
// VersionAndKindForResource implements meta.RESTMapper. It expands the resource first, then invokes the wrapped
|
|
// mapper.
|
|
func (e ShortcutExpander) VersionAndKindForResource(resource string) (defaultVersion, kind string, err error) {
|
|
resource = expandResourceShortcut(resource)
|
|
defaultVersion, kind, err = e.RESTMapper.VersionAndKindForResource(resource)
|
|
return defaultVersion, kind, err
|
|
}
|
|
|
|
// ResourceIsValid takes a string (kind) and checks if it's a valid resource.
|
|
// It expands the resource first, then invokes the wrapped mapper.
|
|
func (e ShortcutExpander) ResourceIsValid(resource string) bool {
|
|
return e.RESTMapper.ResourceIsValid(expandResourceShortcut(resource))
|
|
}
|
|
|
|
// expandResourceShortcut will return the expanded version of resource
|
|
// (something that a pkg/api/meta.RESTMapper can understand), if it is
|
|
// indeed a shortcut. Otherwise, will return resource unmodified.
|
|
func expandResourceShortcut(resource string) string {
|
|
shortForms := map[string]string{
|
|
// Please keep this alphabetized
|
|
"cs": "componentstatuses",
|
|
"ev": "events",
|
|
"ep": "endpoints",
|
|
"hpa": "horizontalpodautoscalers",
|
|
"limits": "limitranges",
|
|
"no": "nodes",
|
|
"ns": "namespaces",
|
|
"po": "pods",
|
|
"pv": "persistentvolumes",
|
|
"pvc": "persistentvolumeclaims",
|
|
"quota": "resourcequotas",
|
|
"rc": "replicationcontrollers",
|
|
"ds": "daemonsets",
|
|
"svc": "services",
|
|
"ing": "ingress",
|
|
}
|
|
if expanded, ok := shortForms[resource]; ok {
|
|
return expanded
|
|
}
|
|
return resource
|
|
}
|