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create.go
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create.go
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package clusterrolebinding
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"
)
// Create creates clusterrolebinding from type string, []byte,
// *rbacv1.ClusterRoleBinding, rbacv1.ClusterRoleBinding, metav1.Object, runtime.Object,
// *unstructured.Unstructured, unstructured.Unstructured or map[string]interface{}.
func (h *Handler) Create(obj interface{}) (*rbacv1.ClusterRoleBinding, error) {
switch val := obj.(type) {
case string:
return h.CreateFromFile(val)
case []byte:
return h.CreateFromBytes(val)
case *rbacv1.ClusterRoleBinding:
return h.CreateFromObject(val)
case rbacv1.ClusterRoleBinding:
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 clusterrolebinding from yaml or json file.
func (h *Handler) CreateFromFile(filename string) (*rbacv1.ClusterRoleBinding, error) {
data, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
return h.CreateFromBytes(data)
}
// CreateFromBytes creates clusterrolebinding from bytes data.
func (h *Handler) CreateFromBytes(data []byte) (*rbacv1.ClusterRoleBinding, error) {
crbJson, err := yaml.ToJSON(data)
if err != nil {
return nil, err
}
crb := &rbacv1.ClusterRoleBinding{}
if err = json.Unmarshal(crbJson, crb); err != nil {
return nil, err
}
return h.createCRB(crb)
}
// CreateFromObject creates clusterrolebinding from metav1.Object or runtime.Object.
func (h *Handler) CreateFromObject(obj interface{}) (*rbacv1.ClusterRoleBinding, error) {
crb, ok := obj.(*rbacv1.ClusterRoleBinding)
if !ok {
return nil, fmt.Errorf("object type is not *rbacv1.ClusterRoleBinding")
}
return h.createCRB(crb)
}
// CreateFromUnstructured creates clusterrolebinding from *unstructured.Unstructured.
func (h *Handler) CreateFromUnstructured(u *unstructured.Unstructured) (*rbacv1.ClusterRoleBinding, error) {
crb := &rbacv1.ClusterRoleBinding{}
err := runtime.DefaultUnstructuredConverter.FromUnstructured(u.UnstructuredContent(), crb)
if err != nil {
return nil, err
}
return h.createCRB(crb)
}
// CreateFromMap creates clusterrolebinding from map[string]interface{}.
func (h *Handler) CreateFromMap(u map[string]interface{}) (*rbacv1.ClusterRoleBinding, error) {
crb := &rbacv1.ClusterRoleBinding{}
err := runtime.DefaultUnstructuredConverter.FromUnstructured(u, crb)
if err != nil {
return nil, err
}
return h.createCRB(crb)
}
// createCRB
func (h *Handler) createCRB(crb *rbacv1.ClusterRoleBinding) (*rbacv1.ClusterRoleBinding, error) {
crb.ResourceVersion = ""
crb.UID = ""
return h.clientset.RbacV1().ClusterRoleBindings().Create(h.ctx, crb, h.Options.CreateOptions)
}