mirror of
https://github.com/kubevela/kubevela.git
synced 2026-02-14 18:10:21 +00:00
116 lines
3.7 KiB
Go
116 lines
3.7 KiB
Go
/*
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Copyright 2021 The KubeVela 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 utils
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import (
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"context"
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"fmt"
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corev1 "k8s.io/api/core/v1"
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apierrors "k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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k8stypes "k8s.io/apimachinery/pkg/types"
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"k8s.io/client-go/rest"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"github.com/oam-dev/kubevela/pkg/oam/util"
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velaerr "github.com/oam-dev/kubevela/pkg/utils/errors"
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)
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// MutateOption defines the function pattern for mutate
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type MutateOption func(object metav1.Object) error
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// MergeOverrideLabels will merge the existing labels and override by the labels passed in
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func MergeOverrideLabels(labels map[string]string) MutateOption {
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return func(object metav1.Object) error {
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util.AddLabels(object, labels)
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return nil
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}
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}
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// MergeOverrideAnnotations will merge the existing annotations and override by the annotations passed in
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func MergeOverrideAnnotations(annotations map[string]string) MutateOption {
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return func(object metav1.Object) error {
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util.AddAnnotations(object, annotations)
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return nil
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}
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}
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// MergeNoConflictLabels will merge the existing labels with the labels passed in, it will report conflicts if exists
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func MergeNoConflictLabels(labels map[string]string) MutateOption {
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return func(object metav1.Object) error {
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existingLabels := object.GetLabels()
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// check and fill the labels
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for k, v := range labels {
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ev, ok := existingLabels[k]
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if ok && ev != "" && ev != v {
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return fmt.Errorf("%s for object %s, key: %s, conflicts value: %s <-> %s", velaerr.LabelConflict, object.GetName(), k, ev, v)
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}
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existingLabels[k] = v
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}
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object.SetLabels(existingLabels)
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return nil
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}
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}
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// CreateOrUpdateNamespace will create a namespace if not exist, it will also update a namespace if exists
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// It will report an error if the labels conflict while it will override the annotations
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func CreateOrUpdateNamespace(ctx context.Context, kubeClient client.Client, name string, options ...MutateOption) error {
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err := CreateNamespace(ctx, kubeClient, name, options...)
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if err != nil && !apierrors.IsAlreadyExists(err) {
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return err
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}
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return UpdateNamespace(ctx, kubeClient, name, options...)
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}
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// CreateNamespace will create a namespace with mutate option
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func CreateNamespace(ctx context.Context, kubeClient client.Client, name string, options ...MutateOption) error {
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obj := &corev1.Namespace{
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ObjectMeta: metav1.ObjectMeta{
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Name: name,
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},
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Spec: corev1.NamespaceSpec{},
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}
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for _, op := range options {
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if err := op(obj); err != nil {
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return err
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}
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}
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return kubeClient.Create(ctx, obj)
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}
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// UpdateNamespace will update a namespace with mutate option
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func UpdateNamespace(ctx context.Context, kubeClient client.Client, name string, options ...MutateOption) error {
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var namespace corev1.Namespace
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err := kubeClient.Get(ctx, k8stypes.NamespacedName{Name: name}, &namespace)
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if err != nil {
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return err
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}
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for _, op := range options {
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if err = op(&namespace); err != nil {
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return err
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}
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}
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return kubeClient.Update(ctx, &namespace)
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}
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// GetServiceAccountSubjectFromConfig extract ServiceAccount subject from token
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func GetServiceAccountSubjectFromConfig(cfg *rest.Config) string {
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sub, _ := GetTokenSubject(cfg.BearerToken)
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return sub
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}
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