/
controller_utils.go
85 lines (74 loc) · 2.13 KB
/
controller_utils.go
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package utils
import (
"fmt"
appsv1 "k8s.io/api/apps/v1"
batchv1 "k8s.io/api/batch/v1"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/meta"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
)
type ControllerMetadata interface {
NewReplicaSetTemplate() corev1.PodTemplateSpec
LabelSelector() *metav1.LabelSelector
Namespace() string
Name() string
UID() types.UID
}
type ReplicaSetControllerWrapper struct {
replicaSetTemplate corev1.PodTemplateSpec
labelSelector *metav1.LabelSelector
metadata metav1.Object
}
func (w *ReplicaSetControllerWrapper) NewReplicaSetTemplate() corev1.PodTemplateSpec {
return w.replicaSetTemplate
}
func (w *ReplicaSetControllerWrapper) LabelSelector() *metav1.LabelSelector {
return w.labelSelector
}
func (w *ReplicaSetControllerWrapper) Namespace() string {
return w.metadata.GetNamespace()
}
func (w *ReplicaSetControllerWrapper) Name() string {
return w.metadata.GetName()
}
func (w *ReplicaSetControllerWrapper) UID() types.UID {
return w.metadata.GetUID()
}
func ControllerAccessor(controller interface{}) ControllerMetadata {
w := &ReplicaSetControllerWrapper{}
var err error
w.metadata, err = meta.Accessor(controller)
if err != nil {
if debug() {
fmt.Printf("ControllerAccessor for %T metadata error: %v", controller, err)
}
}
switch c := controller.(type) {
case *appsv1.Deployment:
w.replicaSetTemplate = corev1.PodTemplateSpec{
ObjectMeta: c.Spec.Template.ObjectMeta,
Spec: c.Spec.Template.Spec,
}
w.labelSelector = c.Spec.Selector
case *appsv1.StatefulSet:
w.replicaSetTemplate = corev1.PodTemplateSpec{
ObjectMeta: c.Spec.Template.ObjectMeta,
Spec: c.Spec.Template.Spec,
}
w.labelSelector = c.Spec.Selector
case *appsv1.DaemonSet:
w.replicaSetTemplate = corev1.PodTemplateSpec{
ObjectMeta: c.Spec.Template.ObjectMeta,
Spec: c.Spec.Template.Spec,
}
w.labelSelector = c.Spec.Selector
case *batchv1.Job:
w.replicaSetTemplate = corev1.PodTemplateSpec{
ObjectMeta: c.Spec.Template.ObjectMeta,
Spec: c.Spec.Template.Spec,
}
w.labelSelector = c.Spec.Selector
}
return w
}