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delete.go
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delete.go
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package rolebinding
import (
"encoding/json"
"fmt"
"io/ioutil"
rbacv1 "k8s.io/api/rbac/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"
)
// Delete deletes rolebinding from type string, []byte, *rbacv1.RoleBinding,
// rbacv1.RoleBinding, metav1.Object, runtime.Object, *unstructured.Unstructured,
// unstructured.Unstructured or map[string]interface{}.
//
// If passed parameter type is string, it will simply call DeleteByName instead of DeleteFromFile.
// You should always explicitly call DeleteFromFile to delete a rolebinding from file path.
func (h *Handler) Delete(obj interface{}) error {
switch val := obj.(type) {
case string:
return h.DeleteByName(val)
case []byte:
return h.DeleteFromBytes(val)
case *rbacv1.RoleBinding:
return h.DeleteFromObject(val)
case rbacv1.RoleBinding:
return h.DeleteFromObject(&val)
case *unstructured.Unstructured:
return h.DeleteFromUnstructured(val)
case unstructured.Unstructured:
return h.DeleteFromUnstructured(&val)
case map[string]interface{}:
return h.DeleteFromMap(val)
case metav1.Object, runtime.Object:
return h.DeleteFromObject(val)
default:
return ErrInvalidDeleteType
}
}
// DeleteByName deletes rolebinding by name.
func (h *Handler) DeleteByName(name string) error {
return h.clientset.RbacV1().RoleBindings(h.namespace).Delete(h.ctx, name, h.Options.DeleteOptions)
}
// DeleteFromFile deletes rolebinding from yaml or json file.
func (h *Handler) DeleteFromFile(filename string) error {
data, err := ioutil.ReadFile(filename)
if err != nil {
return err
}
return h.DeleteFromBytes(data)
}
// DeleteFromBytes deletes rolebinding from bytes data.
func (h *Handler) DeleteFromBytes(data []byte) error {
rbJson, err := yaml.ToJSON(data)
if err != nil {
return err
}
rb := &rbacv1.RoleBinding{}
if err = json.Unmarshal(rbJson, rb); err != nil {
return err
}
return h.deleteRolebinding(rb)
}
// DeleteFromObject deletes rolebinding from metav1.Object or runtime.Object.
func (h *Handler) DeleteFromObject(obj interface{}) error {
rb, ok := obj.(*rbacv1.RoleBinding)
if !ok {
return fmt.Errorf("object type is not *rbacv1.RoleBinding")
}
return h.deleteRolebinding(rb)
}
// DeleteFromUnstructured deletes rolebinding from *unstructured.Unstructured.
func (h *Handler) DeleteFromUnstructured(u *unstructured.Unstructured) error {
rb := &rbacv1.RoleBinding{}
err := runtime.DefaultUnstructuredConverter.FromUnstructured(u.UnstructuredContent(), rb)
if err != nil {
return err
}
return h.deleteRolebinding(rb)
}
// DeleteFromMap deletes rolebinding from map[string]interface{}.
func (h *Handler) DeleteFromMap(u map[string]interface{}) error {
rb := &rbacv1.RoleBinding{}
err := runtime.DefaultUnstructuredConverter.FromUnstructured(u, rb)
if err != nil {
return err
}
return h.deleteRolebinding(rb)
}
// deleteRolebinding
func (h *Handler) deleteRolebinding(rb *rbacv1.RoleBinding) error {
namespace := rb.GetNamespace()
if len(namespace) == 0 {
namespace = h.namespace
}
return h.clientset.RbacV1().RoleBindings(namespace).Delete(h.ctx, rb.Name, h.Options.DeleteOptions)
}