79 lines
2.6 KiB
Go
79 lines
2.6 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 backup
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import (
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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/runtime"
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v1 "github.com/vmware-tanzu/velero/pkg/apis/velero/v1"
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"github.com/vmware-tanzu/velero/pkg/kuberesource"
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"github.com/vmware-tanzu/velero/pkg/plugin/velero"
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)
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// PodAction implements ItemAction.
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type PodAction struct {
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log logrus.FieldLogger
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}
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// NewPodAction creates a new ItemAction for pods.
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func NewPodAction(logger logrus.FieldLogger) *PodAction {
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return &PodAction{log: logger}
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}
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// AppliesTo returns a ResourceSelector that applies only to pods.
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func (a *PodAction) AppliesTo() (velero.ResourceSelector, error) {
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return velero.ResourceSelector{
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IncludedResources: []string{"pods"},
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}, nil
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}
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// Execute scans the pod's spec.volumes for persistentVolumeClaim volumes and returns a
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// ResourceIdentifier list containing references to all of the persistentVolumeClaim volumes used by
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// the pod. This ensures that when a pod is backed up, all referenced PVCs are backed up too.
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func (a *PodAction) Execute(item runtime.Unstructured, backup *v1.Backup) (runtime.Unstructured, []velero.ResourceIdentifier, error) {
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a.log.Info("Executing podAction")
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defer a.log.Info("Done executing podAction")
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pod := new(corev1api.Pod)
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if err := runtime.DefaultUnstructuredConverter.FromUnstructured(item.UnstructuredContent(), pod); err != nil {
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return nil, nil, errors.WithStack(err)
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}
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if len(pod.Spec.Volumes) == 0 {
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a.log.Info("pod has no volumes")
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return item, nil, nil
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}
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var additionalItems []velero.ResourceIdentifier
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for _, volume := range pod.Spec.Volumes {
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if volume.PersistentVolumeClaim != nil && volume.PersistentVolumeClaim.ClaimName != "" {
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a.log.Infof("Adding pvc %s to additionalItems", volume.PersistentVolumeClaim.ClaimName)
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additionalItems = append(additionalItems, velero.ResourceIdentifier{
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GroupResource: kuberesource.PersistentVolumeClaims,
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Namespace: pod.Namespace,
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Name: volume.PersistentVolumeClaim.ClaimName,
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})
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}
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}
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return item, additionalItems, nil
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}
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