99 lines
4.1 KiB
Go
99 lines
4.1 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package util
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import (
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"fmt"
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"k8s.io/api/core/v1"
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rbac "k8s.io/api/rbac/v1beta1"
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apierrors "k8s.io/apimachinery/pkg/api/errors"
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clientset "k8s.io/client-go/kubernetes"
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)
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// TODO: We should invent a dynamic mechanism for this using the dynamic client instead of hard-coding these functions per-type
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// CreateClusterRoleIfNotExists creates a ClusterRole if the target resource doesn't exist. If the resource exists already, this function will update the resource instead.
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func CreateClusterRoleIfNotExists(client clientset.Interface, clusterRole *rbac.ClusterRole) error {
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if _, err := client.RbacV1beta1().ClusterRoles().Create(clusterRole); err != nil {
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if !apierrors.IsAlreadyExists(err) {
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return fmt.Errorf("unable to create RBAC clusterrole: %v", err)
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}
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if _, err := client.RbacV1beta1().ClusterRoles().Update(clusterRole); err != nil {
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return fmt.Errorf("unable to update RBAC clusterrole: %v", err)
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}
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}
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return nil
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}
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// CreateClusterRoleBindingIfNotExists creates a ClusterRoleBinding if the target resource doesn't exist. If the resource exists already, this function will update the resource instead.
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func CreateClusterRoleBindingIfNotExists(client clientset.Interface, clusterRoleBinding *rbac.ClusterRoleBinding) error {
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if _, err := client.RbacV1beta1().ClusterRoleBindings().Create(clusterRoleBinding); err != nil {
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if !apierrors.IsAlreadyExists(err) {
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return fmt.Errorf("unable to create RBAC clusterrolebinding: %v", err)
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}
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if _, err := client.RbacV1beta1().ClusterRoleBindings().Update(clusterRoleBinding); err != nil {
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return fmt.Errorf("unable to update RBAC clusterrolebinding: %v", err)
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}
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}
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return nil
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}
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// CreateRoleIfNotExists creates a Role if the target resource doesn't exist. If the resource exists already, this function will update the resource instead.
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func CreateRoleIfNotExists(client clientset.Interface, role *rbac.Role) error {
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if _, err := client.RbacV1beta1().Roles(role.ObjectMeta.Namespace).Create(role); err != nil {
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if !apierrors.IsAlreadyExists(err) {
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return fmt.Errorf("unable to create RBAC role: %v", err)
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}
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if _, err := client.RbacV1beta1().Roles(role.ObjectMeta.Namespace).Update(role); err != nil {
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return fmt.Errorf("unable to update RBAC role: %v", err)
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}
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}
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return nil
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}
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// CreateRoleBindingIfNotExists creates a RoleBinding if the target resource doesn't exist. If the resource exists already, this function will update the resource instead.
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func CreateRoleBindingIfNotExists(client clientset.Interface, roleBinding *rbac.RoleBinding) error {
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if _, err := client.RbacV1beta1().RoleBindings(roleBinding.ObjectMeta.Namespace).Create(roleBinding); err != nil {
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if !apierrors.IsAlreadyExists(err) {
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return fmt.Errorf("unable to create RBAC rolebinding: %v", err)
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}
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if _, err := client.RbacV1beta1().RoleBindings(roleBinding.ObjectMeta.Namespace).Update(roleBinding); err != nil {
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return fmt.Errorf("unable to update RBAC rolebinding: %v", err)
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}
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}
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return nil
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}
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// CreateConfigMapIfNotExists creates a ConfigMap if the target resource doesn't exist. If the resource exists already, this function will update the resource instead.
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func CreateConfigMapIfNotExists(client clientset.Interface, cm *v1.ConfigMap) error {
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if _, err := client.CoreV1().ConfigMaps(cm.ObjectMeta.Namespace).Create(cm); err != nil {
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if !apierrors.IsAlreadyExists(err) {
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return fmt.Errorf("unable to create configmap: %v", err)
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}
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if _, err := client.CoreV1().ConfigMaps(cm.ObjectMeta.Namespace).Update(cm); err != nil {
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return fmt.Errorf("unable to update configmap: %v", err)
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}
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}
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return nil
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}
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