/
util.go
64 lines (55 loc) · 1.72 KB
/
util.go
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package controllers
import (
"fmt"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/meta"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime"
)
func GetPodFromTemplate(template *corev1.PodTemplateSpec, parentObject runtime.Object, namespace string) *corev1.Pod {
desiredLabels := getPodsLabelSet(template)
desiredFinalizers := getPodsFinalizers(template)
desiredAnnotations := getPodsAnnotationSet(template)
pod := &corev1.Pod{
ObjectMeta: metav1.ObjectMeta{
Namespace: namespace,
Labels: desiredLabels,
Finalizers: desiredFinalizers,
Annotations: desiredAnnotations,
},
}
pod.Spec = *template.Spec.DeepCopy()
return pod
}
func getPodsLabelSet(template *corev1.PodTemplateSpec) labels.Set {
desiredLabels := make(labels.Set)
for k, v := range template.Labels {
desiredLabels[k] = v
}
return desiredLabels
}
func getPodsFinalizers(template *corev1.PodTemplateSpec) []string {
desiredFinalizers := make([]string, len(template.Finalizers))
copy(desiredFinalizers, template.Finalizers)
return desiredFinalizers
}
func getPodsAnnotationSet(template *corev1.PodTemplateSpec) labels.Set {
desiredAnnotations := make(labels.Set)
for k, v := range template.Annotations {
desiredAnnotations[k] = v
}
return desiredAnnotations
}
func GetFirstPodName(parentObject runtime.Object) string {
accessor, _ := meta.Accessor(parentObject)
name := fmt.Sprintf("%s-0", accessor.GetName())
return name
}
// RemoveString removes the element at position i from a string array without preserving
// the order.
// https://stackoverflow.com/a/37335777/4430124
func RemoveString(s []string, i int) []string {
s[i] = s[len(s)-1]
return s[:len(s)-1]
}