mirror of
https://github.com/ceph/ceph-csi.git
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128 lines
3.7 KiB
Go
128 lines
3.7 KiB
Go
/*
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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 manifest
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import (
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"fmt"
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"io/ioutil"
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apps "k8s.io/api/apps/v1"
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"k8s.io/api/core/v1"
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extensions "k8s.io/api/extensions/v1beta1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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utilyaml "k8s.io/apimachinery/pkg/util/yaml"
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"k8s.io/kubernetes/cmd/kubeadm/app/util"
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"k8s.io/kubernetes/pkg/api/legacyscheme"
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"k8s.io/kubernetes/test/e2e/generated"
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)
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// PodFromManifest reads a .json/yaml file and returns the pod in it.
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func PodFromManifest(filename string) (*v1.Pod, error) {
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var pod v1.Pod
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data := generated.ReadOrDie(filename)
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json, err := utilyaml.ToJSON(data)
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if err != nil {
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return nil, err
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}
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if err := runtime.DecodeInto(legacyscheme.Codecs.UniversalDecoder(), json, &pod); err != nil {
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return nil, err
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}
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return &pod, nil
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}
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// RcFromManifest reads a .json/yaml file and returns the rc in it.
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func RcFromManifest(fileName string) (*v1.ReplicationController, error) {
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var controller v1.ReplicationController
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data := generated.ReadOrDie(fileName)
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json, err := utilyaml.ToJSON(data)
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if err != nil {
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return nil, err
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}
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if err := runtime.DecodeInto(legacyscheme.Codecs.UniversalDecoder(), json, &controller); err != nil {
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return nil, err
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}
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return &controller, nil
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}
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// SvcFromManifest reads a .json/yaml file and returns the service in it.
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func SvcFromManifest(fileName string) (*v1.Service, error) {
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var svc v1.Service
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data := generated.ReadOrDie(fileName)
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json, err := utilyaml.ToJSON(data)
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if err != nil {
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return nil, err
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}
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if err := runtime.DecodeInto(legacyscheme.Codecs.UniversalDecoder(), json, &svc); err != nil {
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return nil, err
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}
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return &svc, nil
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}
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// IngressFromManifest reads a .json/yaml file and returns the ingress in it.
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func IngressFromManifest(fileName string) (*extensions.Ingress, error) {
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var ing extensions.Ingress
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data := generated.ReadOrDie(fileName)
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json, err := utilyaml.ToJSON(data)
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if err != nil {
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return nil, err
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}
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if err := runtime.DecodeInto(legacyscheme.Codecs.UniversalDecoder(), json, &ing); err != nil {
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return nil, err
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}
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return &ing, nil
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}
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// IngressToManifest generates a yaml file in the given path with the given ingress.
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// Assumes that a directory exists at the given path.
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func IngressToManifest(ing *extensions.Ingress, path string) error {
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serialized, err := util.MarshalToYaml(ing, extensions.SchemeGroupVersion)
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if err != nil {
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return fmt.Errorf("failed to marshal ingress %v to YAML: %v", ing, err)
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}
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if err := ioutil.WriteFile(path, serialized, 0600); err != nil {
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return fmt.Errorf("error in writing ingress to file: %s", err)
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}
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return nil
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}
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// StatefulSetFromManifest returns a StatefulSet from a manifest stored in fileName in the Namespace indicated by ns.
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func StatefulSetFromManifest(fileName, ns string) (*apps.StatefulSet, error) {
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var ss apps.StatefulSet
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data := generated.ReadOrDie(fileName)
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json, err := utilyaml.ToJSON(data)
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if err != nil {
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return nil, err
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}
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if err := runtime.DecodeInto(legacyscheme.Codecs.UniversalDecoder(), json, &ss); err != nil {
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return nil, err
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}
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ss.Namespace = ns
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if ss.Spec.Selector == nil {
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ss.Spec.Selector = &metav1.LabelSelector{
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MatchLabels: ss.Spec.Template.Labels,
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}
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}
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return &ss, nil
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}
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