101 lines
2.8 KiB
Go
101 lines
2.8 KiB
Go
/*
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Copyright 2017 the Velero contributors.
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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 restore
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import (
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"encoding/json"
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"github.com/pkg/errors"
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"github.com/sirupsen/logrus"
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corev1api "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/util/sets"
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"github.com/vmware-tanzu/velero/pkg/plugin/velero"
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)
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const annotationLastAppliedConfig = "kubectl.kubernetes.io/last-applied-configuration"
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type ServiceAction struct {
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log logrus.FieldLogger
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}
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func NewServiceAction(logger logrus.FieldLogger) *ServiceAction {
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return &ServiceAction{log: logger}
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}
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func (a *ServiceAction) AppliesTo() (velero.ResourceSelector, error) {
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return velero.ResourceSelector{
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IncludedResources: []string{"services"},
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}, nil
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}
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func (a *ServiceAction) Execute(input *velero.RestoreItemActionExecuteInput) (*velero.RestoreItemActionExecuteOutput, error) {
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service := new(corev1api.Service)
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if err := runtime.DefaultUnstructuredConverter.FromUnstructured(input.Item.UnstructuredContent(), service); err != nil {
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return nil, errors.WithStack(err)
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}
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if service.Spec.ClusterIP != "None" {
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service.Spec.ClusterIP = ""
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}
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if err := deleteNodePorts(service); err != nil {
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return nil, err
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}
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res, err := runtime.DefaultUnstructuredConverter.ToUnstructured(service)
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if err != nil {
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return nil, errors.WithStack(err)
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}
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return velero.NewRestoreItemActionExecuteOutput(&unstructured.Unstructured{Object: res}), nil
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}
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func deleteNodePorts(service *corev1api.Service) error {
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if service.Spec.Type == corev1api.ServiceTypeExternalName {
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return nil
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}
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// find any NodePorts whose values were explicitly specified according
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// to the last-applied-config annotation. We'll retain these values, and
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// clear out any other (presumably auto-assigned) NodePort values.
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explicitNodePorts := sets.NewString()
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lastAppliedConfig, ok := service.Annotations[annotationLastAppliedConfig]
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if ok {
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appliedService := new(corev1api.Service)
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if err := json.Unmarshal([]byte(lastAppliedConfig), appliedService); err != nil {
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return errors.WithStack(err)
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}
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for _, port := range appliedService.Spec.Ports {
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if port.NodePort > 0 {
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explicitNodePorts.Insert(port.Name)
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}
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}
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}
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for i, port := range service.Spec.Ports {
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if !explicitNodePorts.Has(port.Name) {
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service.Spec.Ports[i].NodePort = 0
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}
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}
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return nil
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}
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