62 lines
2.1 KiB
Go
62 lines
2.1 KiB
Go
/*
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Copyright 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 exposer
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import (
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"context"
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"fmt"
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"github.com/pkg/errors"
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"github.com/sirupsen/logrus"
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corev1 "k8s.io/api/core/v1"
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ctrlclient "sigs.k8s.io/controller-runtime/pkg/client"
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"github.com/vmware-tanzu/velero/pkg/datapath"
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"github.com/vmware-tanzu/velero/pkg/util/filesystem"
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"github.com/vmware-tanzu/velero/pkg/util/kube"
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)
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var getVolumeDirectory = kube.GetVolumeDirectory
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var singlePathMatch = kube.SinglePathMatch
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// GetPodVolumeHostPath returns a path that can be accessed from the host for a given volume of a pod
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func GetPodVolumeHostPath(ctx context.Context, pod *corev1.Pod, pvcName string,
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cli ctrlclient.Client, fs filesystem.Interface, log logrus.FieldLogger) (datapath.AccessPoint, error) {
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logger := log.WithField("pod name", pod.Name).WithField("pod UID", pod.GetUID()).WithField("pvc", pvcName)
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volDir, err := getVolumeDirectory(ctx, logger, pod, pvcName, cli)
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if err != nil {
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return datapath.AccessPoint{}, errors.Wrapf(err, "error getting volume directory name for pvc %s in pod %s", pvcName, pod.Name)
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}
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logger.WithField("volDir", volDir).Info("Got volume for backup PVC")
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pathGlob := fmt.Sprintf("/host_pods/%s/volumes/*/%s", string(pod.GetUID()), volDir)
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logger.WithField("pathGlob", pathGlob).Debug("Looking for path matching glob")
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path, err := singlePathMatch(pathGlob, fs, logger)
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if err != nil {
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return datapath.AccessPoint{}, errors.Wrapf(err, "error identifying unique volume path on host for pvc %s in pod %s", pvcName, pod.Name)
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}
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logger.WithField("path", path).Info("Found path matching glob")
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return datapath.AccessPoint{
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ByPath: path,
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}, nil
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}
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