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volume snapshot

Table of Content

volume snapshot

backup and restore using Kubernetes volume snapshot

https://kubernetes.io/docs/concepts/storage/volume-snapshots/

Similar to how API resources PersistentVolume and PersistentVolumeClaim are used to provision volumes for users and administrators, VolumeSnapshotContent and VolumeSnapshot API resources are provided to create volume snapshots for users and administrators.

A VolumeSnapshotContent is a snapshot taken from a volume in the cluster that has been provisioned by an administrator. It is a resource in the cluster just like a PersistentVolume is a cluster resource.

A VolumeSnapshot is a request for snapshot of a volume by a user. It is similar to a PersistentVolumeClaim.

directpv does not support volume snapshots

Oh no... Do I have to start all over?

setup

# before the setup
$ kubectl api-resources | grep csi
metricsinstances                                                                  monitoring.grafana.com/v1alpha1          true         MetricsInstance
csidrivers                                                                        storage.k8s.io/v1                        false        CSIDriver
csinodes                                                                          storage.k8s.io/v1                        false        CSINode
csistoragecapacities                                                              storage.k8s.io/v1                        true         CSIStorageCapacity

$ kubectl get csidrivers
NAME              ATTACHREQUIRED   PODINFOONMOUNT   STORAGECAPACITY   TOKENREQUESTS   REQUIRESREPUBLISH   MODES                  AGE
csi.tigera.io     true             true             false             <unset>         false               Ephemeral              45d
directpv-min-io   false            true             false             <unset>         false               Persistent,Ephemeral   45d