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manifest.go
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manifest.go
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/*
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 manifest
import (
apps "k8s.io/api/apps/v1beta1"
"k8s.io/api/core/v1"
extensions "k8s.io/api/extensions/v1beta1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
utilyaml "k8s.io/apimachinery/pkg/util/yaml"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/test/e2e/generated"
)
// PodFromManifest reads a .json/yaml file and returns the pod in it.
func PodFromManifest(filename string) (*v1.Pod, error) {
var pod v1.Pod
data := generated.ReadOrDie(filename)
json, err := utilyaml.ToJSON(data)
if err != nil {
return nil, err
}
if err := runtime.DecodeInto(api.Codecs.UniversalDecoder(), json, &pod); err != nil {
return nil, err
}
return &pod, nil
}
// RcFromManifest reads a .json/yaml file and returns the rc in it.
func RcFromManifest(fileName string) (*v1.ReplicationController, error) {
var controller v1.ReplicationController
data := generated.ReadOrDie(fileName)
json, err := utilyaml.ToJSON(data)
if err != nil {
return nil, err
}
if err := runtime.DecodeInto(api.Codecs.UniversalDecoder(), json, &controller); err != nil {
return nil, err
}
return &controller, nil
}
// SvcFromManifest reads a .json/yaml file and returns the service in it.
func SvcFromManifest(fileName string) (*v1.Service, error) {
var svc v1.Service
data := generated.ReadOrDie(fileName)
json, err := utilyaml.ToJSON(data)
if err != nil {
return nil, err
}
if err := runtime.DecodeInto(api.Codecs.UniversalDecoder(), json, &svc); err != nil {
return nil, err
}
return &svc, nil
}
// IngressFromManifest reads a .json/yaml file and returns the ingress in it.
func IngressFromManifest(fileName string) (*extensions.Ingress, error) {
var ing extensions.Ingress
data := generated.ReadOrDie(fileName)
json, err := utilyaml.ToJSON(data)
if err != nil {
return nil, err
}
if err := runtime.DecodeInto(api.Codecs.UniversalDecoder(), json, &ing); err != nil {
return nil, err
}
return &ing, nil
}
// StatefulSetFromManifest returns a StatefulSet from a manifest stored in fileName in the Namespace indicated by ns.
func StatefulSetFromManifest(fileName, ns string) (*apps.StatefulSet, error) {
var ss apps.StatefulSet
data := generated.ReadOrDie(fileName)
json, err := utilyaml.ToJSON(data)
if err != nil {
return nil, err
}
if err := runtime.DecodeInto(api.Codecs.UniversalDecoder(), json, &ss); err != nil {
return nil, err
}
ss.Namespace = ns
if ss.Spec.Selector == nil {
ss.Spec.Selector = &metav1.LabelSelector{
MatchLabels: ss.Spec.Template.Labels,
}
}
return &ss, nil
}