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rbac.go
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rbac.go
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/**
* Copyright © 2014-2020 The SiteWhere Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package resources
import (
"context"
rbacv1 "k8s.io/api/rbac/v1"
errors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
kubernetes "k8s.io/client-go/kubernetes"
)
// CreateClusterRoleIfNotExists Create a ClusterRole if it does not exists.
func CreateClusterRoleIfNotExists(cr *rbacv1.ClusterRole, clientset kubernetes.Interface) (*rbacv1.ClusterRole, error) {
var err error
var existingCR *rbacv1.ClusterRole
existingCR, err = clientset.RbacV1().ClusterRoles().Get(
context.TODO(),
cr.ObjectMeta.Name,
metav1.GetOptions{})
if err != nil && errors.IsNotFound(err) {
result, err := clientset.RbacV1().ClusterRoles().Create(
context.TODO(),
cr,
metav1.CreateOptions{})
if err != nil {
return nil, err
}
return result, err
}
if err != nil {
return nil, err
}
return existingCR, nil
}
// DeleteClusterRoleIfExists Delete a ClusterRole if it exists.
func DeleteClusterRoleIfExists(cr *rbacv1.ClusterRole, clientset kubernetes.Interface) error {
return clientset.RbacV1().ClusterRoles().Delete(
context.TODO(),
cr.ObjectMeta.Name,
metav1.DeleteOptions{})
}
// CreateClusterRoleBindingIfNotExists Create a ClusterRoleBinding if it does not exists.
func CreateClusterRoleBindingIfNotExists(crb *rbacv1.ClusterRoleBinding, clientset kubernetes.Interface) (*rbacv1.ClusterRoleBinding, error) {
var err error
var existingCRB *rbacv1.ClusterRoleBinding
existingCRB, err = clientset.RbacV1().ClusterRoleBindings().Get(
context.TODO(),
crb.ObjectMeta.Name,
metav1.GetOptions{})
if err != nil && errors.IsNotFound(err) {
result, err := clientset.RbacV1().ClusterRoleBindings().Create(
context.TODO(),
crb,
metav1.CreateOptions{})
if err != nil {
return nil, err
}
return result, err
}
if err != nil {
return nil, err
}
return existingCRB, nil
}
// DeleteClusterRoleBindingIfExists Delete a ClusterRoleBinding if it exists.
func DeleteClusterRoleBindingIfExists(crb *rbacv1.ClusterRoleBinding, clientset kubernetes.Interface) error {
return clientset.RbacV1().ClusterRoleBindings().Delete(
context.TODO(),
crb.ObjectMeta.Name,
metav1.DeleteOptions{})
}
// CreateRoleIfNotExists Create a Role if it does not exists.
func CreateRoleIfNotExists(role *rbacv1.Role, clientset kubernetes.Interface, namespace string) (*rbacv1.Role, error) {
var err error
var existingRole *rbacv1.Role
existingRole, err = clientset.RbacV1().Roles(namespace).Get(
context.TODO(),
role.ObjectMeta.Name,
metav1.GetOptions{})
if err != nil && errors.IsNotFound(err) {
result, err := clientset.RbacV1().Roles(namespace).Create(
context.TODO(),
role,
metav1.CreateOptions{})
if err != nil {
return nil, err
}
return result, err
}
if err != nil {
return nil, err
}
return existingRole, nil
}
// DeleteRoleIfExists Delete a Role if it does not exists.
func DeleteRoleIfExists(role *rbacv1.Role, clientset kubernetes.Interface, namespace string) error {
return clientset.RbacV1().Roles(namespace).Delete(
context.TODO(),
role.ObjectMeta.Name,
metav1.DeleteOptions{})
}
// CreateRoleBindingIfNotExists Create a RoleBinding if it does not exists.
func CreateRoleBindingIfNotExists(rb *rbacv1.RoleBinding, clientset kubernetes.Interface, namespace string) (*rbacv1.RoleBinding, error) {
var err error
var existingRoleBinding *rbacv1.RoleBinding
existingRoleBinding, err = clientset.RbacV1().RoleBindings(namespace).Get(
context.TODO(),
rb.ObjectMeta.Name,
metav1.GetOptions{})
if err != nil && errors.IsNotFound(err) {
result, err := clientset.RbacV1().RoleBindings(namespace).Create(
context.TODO(),
rb,
metav1.CreateOptions{})
if err != nil {
return nil, err
}
return result, err
}
if err != nil {
return nil, err
}
return existingRoleBinding, nil
}
// DeleteRoleBindingIfExists Delete a RoleBinding if it exists.
func DeleteRoleBindingIfExists(rb *rbacv1.RoleBinding, clientset kubernetes.Interface, namespace string) error {
return clientset.RbacV1().RoleBindings(namespace).Delete(
context.TODO(),
rb.ObjectMeta.Name,
metav1.DeleteOptions{})
}