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create.go
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create.go
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package daemonset
import (
"encoding/json"
"fmt"
"io/ioutil"
appsv1 "k8s.io/api/apps/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 daemonset from type string, []byte, *appsv1.DaemonSet,
// appsv1.DaemonSet, metav1.Object, runtime.Object, *unstructured.Unstructured,
// unstructured.Unstructured or map[string]interface{}.
func (h *Handler) Create(obj interface{}) (*appsv1.DaemonSet, error) {
switch val := obj.(type) {
case string:
return h.CreateFromFile(val)
case []byte:
return h.CreateFromBytes(val)
case *appsv1.DaemonSet:
return h.CreateFromObject(val)
case appsv1.DaemonSet:
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 daemonset from yaml or json file.
func (h *Handler) CreateFromFile(filename string) (*appsv1.DaemonSet, error) {
data, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
return h.CreateFromBytes(data)
}
// CreateFromBytes creates daemonset from bytes data.
func (h *Handler) CreateFromBytes(data []byte) (*appsv1.DaemonSet, error) {
dsJson, err := yaml.ToJSON(data)
if err != nil {
return nil, err
}
ds := &appsv1.DaemonSet{}
if err = json.Unmarshal(dsJson, ds); err != nil {
return nil, err
}
return h.createDaemonset(ds)
}
// CreateFromObject creates daemonset from metav1.Object or runtime.Object.
func (h *Handler) CreateFromObject(obj interface{}) (*appsv1.DaemonSet, error) {
ds, ok := obj.(*appsv1.DaemonSet)
if !ok {
return nil, fmt.Errorf("object type is not *appsv1.DaemonSet")
}
return h.createDaemonset(ds)
}
// CreateFromUnstructured creates daemonset from *unstructured.Unstructured.
func (h *Handler) CreateFromUnstructured(u *unstructured.Unstructured) (*appsv1.DaemonSet, error) {
ds := &appsv1.DaemonSet{}
err := runtime.DefaultUnstructuredConverter.FromUnstructured(u.UnstructuredContent(), ds)
if err != nil {
return nil, err
}
return h.createDaemonset(ds)
}
// CreateFromMap creates daemonset from map[string]interface{}.
func (h *Handler) CreateFromMap(u map[string]interface{}) (*appsv1.DaemonSet, error) {
ds := &appsv1.DaemonSet{}
err := runtime.DefaultUnstructuredConverter.FromUnstructured(u, ds)
if err != nil {
return nil, err
}
return h.createDaemonset(ds)
}
// createDaemonset
func (h *Handler) createDaemonset(ds *appsv1.DaemonSet) (*appsv1.DaemonSet, error) {
namespace := ds.GetNamespace()
if len(namespace) == 0 {
namespace = h.namespace
}
ds.ResourceVersion = ""
ds.UID = ""
return h.clientset.AppsV1().DaemonSets(namespace).Create(h.ctx, ds, h.Options.CreateOptions)
}