| /* |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You 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 kubernetes |
| |
| import ( |
| "encoding/json" |
| "fmt" |
| |
| "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured" |
| "k8s.io/apimachinery/pkg/runtime" |
| "k8s.io/apimachinery/pkg/runtime/serializer" |
| "k8s.io/apimachinery/pkg/util/yaml" |
| ) |
| |
| // LoadResourceFromYaml loads a k8s resource from a yaml definition |
| func LoadResourceFromYaml(scheme *runtime.Scheme, data string) (runtime.Object, error) { |
| source := []byte(data) |
| jsonSource, err := yaml.ToJSON(source) |
| if err != nil { |
| return nil, err |
| } |
| u := unstructured.Unstructured{} |
| err = u.UnmarshalJSON(jsonSource) |
| if err != nil { |
| return nil, err |
| } |
| return RuntimeObjectFromUnstructured(scheme, &u) |
| } |
| |
| // LoadRawResourceFromYaml loads a k8s resource from a yaml definition without making assumptions on the underlying type |
| func LoadRawResourceFromYaml(data string) (runtime.Object, error) { |
| source := []byte(data) |
| jsonSource, err := yaml.ToJSON(source) |
| if err != nil { |
| return nil, err |
| } |
| var objmap map[string]interface{} |
| if err = json.Unmarshal(jsonSource, &objmap); err != nil { |
| return nil, err |
| } |
| return &unstructured.Unstructured{ |
| Object: objmap, |
| }, nil |
| } |
| |
| // RuntimeObjectFromUnstructured converts an unstructured to a runtime object |
| func RuntimeObjectFromUnstructured(scheme *runtime.Scheme, u *unstructured.Unstructured) (runtime.Object, error) { |
| gvk := u.GroupVersionKind() |
| codecs := serializer.NewCodecFactory(scheme) |
| decoder := codecs.UniversalDecoder(gvk.GroupVersion()) |
| |
| b, err := u.MarshalJSON() |
| if err != nil { |
| return nil, fmt.Errorf("error running MarshalJSON on unstructured object: %v", err) |
| } |
| ro, _, err := decoder.Decode(b, &gvk, nil) |
| if err != nil { |
| return nil, fmt.Errorf("failed to decode json data with gvk(%v): %v", gvk.String(), err) |
| } |
| return ro, nil |
| } |