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decoder.go
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decoder.go
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// Copyright 2019 Cruise LLC
//
// 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
// https://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 resource
import (
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/serializer"
)
var (
runtimeScheme = runtime.NewScheme()
codecs = serializer.NewCodecFactory(runtimeScheme)
)
type object interface {
metav1.Object
runtime.Object
}
func decodeObject(raw []byte, object object) error {
deserializer := codecs.UniversalDeserializer()
if _, _, err := deserializer.Decode(raw, nil, object); err != nil {
return err
}
return nil
}
// GetResourceName attempts to get the best name for a resource
func GetResourceName(meta metav1.ObjectMeta) (name string) {
// Attempt to get the owner controller's resource name.
// This name is the high level resource that the user is working with.
for _, owner := range meta.OwnerReferences {
if owner.Controller != nil && *owner.Controller == true {
if len(owner.Name) > 0 {
name = owner.Name
return
}
}
}
// Attempt to get the object's name
if len(meta.Name) > 0 {
name = meta.Name
return
}
// Attempt to get the name label
if val, ok := meta.Labels["name"]; ok {
name = val
return
}
return
}