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create.go
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create.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"
)
// Create creates cronjob from type string, []byte, *batchv1.CronJob,
// batchv1.CronJob, metav1.Object, runtime.Object, *unstructured.Unstructured,
// unstructured.Unstructured or map[string]interface{}.
func (h *Handler) Create(obj interface{}) (*batchv1.CronJob, error) {
switch val := obj.(type) {
case string:
return h.CreateFromFile(val)
case []byte:
return h.CreateFromBytes(val)
case *batchv1.CronJob:
return h.CreateFromObject(val)
case batchv1.CronJob:
return h.CreateFromObject(&val)
case *unstructured.Unstructured:
return h.CreateFromUnstructured(val)
case unstructured.Unstructured:
return h.CreateFromUnstructured(&val)
case map[string]interface{}:
return h.CreateFromMap(val)
case metav1.Object, runtime.Object:
return h.CreateFromObject(val)
default:
return nil, ErrInvalidCreateType
}
}
// CreateFromFile creates cronjob from yaml or json file.
func (h *Handler) CreateFromFile(filename string) (*batchv1.CronJob, error) {
data, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
return h.CreateFromBytes(data)
}
// CreateFromBytes creates cronjob from bytes data.
func (h *Handler) CreateFromBytes(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.createCronjob(cj)
}
// CreateFromObject creates cronjob from metav1.Object or runtime.Object.
func (h *Handler) CreateFromObject(obj interface{}) (*batchv1.CronJob, error) {
cj, ok := obj.(*batchv1.CronJob)
if !ok {
return nil, fmt.Errorf("object type is not *batchv1.CronJob")
}
return h.createCronjob(cj)
}
// CreateFromUnstructured creates cronjob from *unstructured.Unstructured.
func (h *Handler) CreateFromUnstructured(u *unstructured.Unstructured) (*batchv1.CronJob, error) {
cj := &batchv1.CronJob{}
err := runtime.DefaultUnstructuredConverter.FromUnstructured(u.UnstructuredContent(), cj)
if err != nil {
return nil, err
}
return h.createCronjob(cj)
}
// CreateFromMap creates cronjob from map[string]interface{}.
func (h *Handler) CreateFromMap(u map[string]interface{}) (*batchv1.CronJob, error) {
cj := &batchv1.CronJob{}
err := runtime.DefaultUnstructuredConverter.FromUnstructured(u, cj)
if err != nil {
return nil, err
}
return h.createCronjob(cj)
}
// createCronjob
func (h *Handler) createCronjob(cj *batchv1.CronJob) (*batchv1.CronJob, error) {
namespace := cj.GetNamespace()
if len(namespace) == 0 {
namespace = h.namespace
}
cj.ResourceVersion = ""
cj.UID = ""
return h.clientset.BatchV1().CronJobs(namespace).Create(h.ctx, cj, h.Options.CreateOptions)
}