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update.go
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update.go
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package cronjob
import (
"encoding/json"
"fmt"
"io/ioutil"
batchv1 "k8s.io/api/batch/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/util/yaml"
)
// Update updates cronjob from type string, []byte, *batchv1.CronJob,
// batchv1.CronJob, metav1.Object, runtime.Object, *unstructured.Unstructured,
// unstructured.Unstructured or map[string]interface{}.
func (h *Handler) Update(obj interface{}) (*batchv1.CronJob, error) {
switch val := obj.(type) {
case string:
return h.UpdateFromFile(val)
case []byte:
return h.UpdateFromBytes(val)
case *batchv1.CronJob:
return h.UpdateFromObject(val)
case batchv1.CronJob:
return h.UpdateFromObject(&val)
case *unstructured.Unstructured:
return h.UpdateFromUnstructured(val)
case unstructured.Unstructured:
return h.UpdateFromUnstructured(&val)
case map[string]interface{}:
return h.UpdateFromMap(val)
case metav1.Object, runtime.Object:
return h.UpdateFromObject(val)
default:
return nil, ErrInvalidUpdateType
}
}
// UpdateFromFile updates cronjob from yaml or json file.
func (h *Handler) UpdateFromFile(filename string) (*batchv1.CronJob, error) {
data, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
return h.UpdateFromBytes(data)
}
// UpdateFromBytes updates cronjob from bytes data.
func (h *Handler) UpdateFromBytes(data []byte) (*batchv1.CronJob, error) {
cjJson, err := yaml.ToJSON(data)
if err != nil {
return nil, err
}
cj := &batchv1.CronJob{}
if err = json.Unmarshal(cjJson, cj); err != nil {
return nil, err
}
return h.updateCronjob(cj)
}
// UpdateFromObject updates cronjob from metav1.Object or runtime.Object.
func (h *Handler) UpdateFromObject(obj interface{}) (*batchv1.CronJob, error) {
cj, ok := obj.(*batchv1.CronJob)
if !ok {
return nil, fmt.Errorf("object type is not *batchv1.CronJob")
}
return h.updateCronjob(cj)
}
// UpdateFromUnstructured updates cronjob from *unstructured.Unstructured.
func (h *Handler) UpdateFromUnstructured(u *unstructured.Unstructured) (*batchv1.CronJob, error) {
cj := &batchv1.CronJob{}
err := runtime.DefaultUnstructuredConverter.FromUnstructured(u.UnstructuredContent(), cj)
if err != nil {
return nil, err
}
return h.updateCronjob(cj)
}
// UpdateFromMap updates cronjob from map[string]interface{}.
func (h *Handler) UpdateFromMap(u map[string]interface{}) (*batchv1.CronJob, error) {
cj := &batchv1.CronJob{}
err := runtime.DefaultUnstructuredConverter.FromUnstructured(u, cj)
if err != nil {
return nil, err
}
return h.updateCronjob(cj)
}
// updateCronjob
func (h *Handler) updateCronjob(cj *batchv1.CronJob) (*batchv1.CronJob, error) {
namespace := cj.GetNamespace()
if len(namespace) == 0 {
namespace = h.namespace
}
//// resourceVersion cann't be set, the resourceVersion field is empty.
cj.ResourceVersion = ""
cj.UID = ""
return h.clientset.BatchV1().CronJobs(namespace).Update(h.ctx, cj, h.Options.UpdateOptions)
}