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k8sutil.go
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k8sutil.go
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// Copyright 2018 The vault-operator 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 k8sutil
import (
"fmt"
"strings"
api "github.com/coreos/vault-operator/pkg/apis/vault/v1alpha1"
"k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
// CascadeDeleteBackground returns a background delete policy option which causes the garbage collector to delete the dependents in the background.
func CascadeDeleteBackground() *metav1.DeleteOptions {
return &metav1.DeleteOptions{
PropagationPolicy: func() *metav1.DeletionPropagation {
background := metav1.DeletePropagationBackground
return &background
}(),
}
}
// PodDNSName constructs the dns name on which a pod can be addressed
func PodDNSName(p v1.Pod) string {
podIP := strings.Replace(p.Status.PodIP, ".", "-", -1)
return fmt.Sprintf("%s.%s.pod", podIP, p.Namespace)
}
// AddOwnerRefToObject appends the desired OwnerReference to the object
func AddOwnerRefToObject(o metav1.Object, r metav1.OwnerReference) {
o.SetOwnerReferences(append(o.GetOwnerReferences(), r))
}
// AsOwner returns an owner reference set as the vault cluster CR
func AsOwner(v *api.VaultService) metav1.OwnerReference {
trueVar := true
return metav1.OwnerReference{
APIVersion: api.SchemeGroupVersion.String(),
Kind: api.VaultServiceKind,
Name: v.Name,
UID: v.UID,
Controller: &trueVar,
}
}