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Stash kubectl Plugin

Stash gives you kubectl plugin support named kubectl stash cli. kubectl stash cli can be used to manage Stash objects quickly and easily. It performs various operations like creating Stash objects, coping Stash objects, cloning PVC, unlock Repository, triggering an instant backup, etc. To install Stash kubectl plugin on your workstation, follow the steps here.

Available Command

Available command for kubectl stash cli are:

Main Command Uses
create repository Create a new Repository.
create backupconfig Create a new BackupConfiguration.
create restoresession Create a new RestoreSession.
cp secret Copy Secret from source namespace to destination namespace.
cp repository Copy Repository from source namespace to destination namespace.
copy backupconfig Copy BackupConfiguration from source namespace to destination namespace.
copy volumesnapshot Copy VolumeSnapshot from source namespace to destination namespace.
clone pvc Clone a PVC from source namespace to destination namespace.
trigger Used to take an instant backup.
unlock Used to unlock a Remote Repository.

Create Command

kubectl stash create command is used to create stash objects. It creates various objects like Repository, BackupConfiguration and RestoreSession etc.

Create Repository

To create a Repository, you need to provide a Repository name and backend information and credential. You will provide the information and credential by using flags. The available flags are:

Flag Description
--namespace Indicates the namespace where the Repository will be created
--secret Specify the name of the storage secret that will be used to create Repository
--bucket Specify the name of the cloud bucket/container.
--prefix Prefix denotes the directory inside the backend.
--provider Specify backend provider (i.e. gcs, s3, azure etc)
--endpoint Endpoint for s3/s3 compatible backend
--max-connections Specify maximum concurrent connections for GCS, Azure and B2 backend.

Format:

kubectl stash create <repository-name> [flags]

Example:

$ kubectl stash create repository gcs-repo --namespace=demo --secret=gcs-secret --bucket=appscode-qa --prefix=/source/data --provider=gcs

Create BackupConfiguration

To create a BackupConfiguration, you need to provide BackupConfiguration name, Repository name, Target, and RetentionPolicy, etc. You will provide the Repository name, Target, RetentionPolicy by using flags. The available flags are:

Flag Description
--namespace Indicates the namespace where the BackupConfiguration will be created
--target-apiversion Specify API-Version of the target resource.
--target-kind Specify kind of the target resource.
--target-name Specify name of the target resource.
--repository Specify name of the Repository that will be created.
--schedule Specify schedule of the backup.
--driver Driver indicates the mechanism used to backup (i.e. VolumeSnapshotter, Restic)
--task Specify name of a Task
--volumesnpashotclass Specify name of the VolumeSnapshotClass.
--replica Replica specifies the number of replicas whose data should be backed up.
--paths A list of path that will be backed up
--volume-mounts Specify a list of volumes and their mountPaths
--keep-last Never delete the n last (most recent) snapshots.
--keep-hourly For the last n hours in which a snapshot was made, keep only the last snapshot for each hour.
--keep-daily For the last n days which have one or more snapshots, only keep the last one for that day.
--keep-weekly For the last n weeks which have one or more snapshots, only keep the last one for that week.
--keep-monthly For the last n months which have one or more snapshots, only keep the last one for that month.
--keep-yearly For the last n years which have one or more snapshots, only keep the last one for that year.
--prune If set true, Stash will cleanup unreferenced data from the backend.
--dry-run Stash will not remove anything but print which snapshots would be removed.

Note: You must provide <volumenName>:<mountPath>:<subPath> in the --volume-mounts flag to specify the volumes and their mountPath and subPath. The :<subPath> part is optional.

Format:

kubectl stash create <backupconfig-name> [flags]

Example:

$ kubectl stash create backupconfig ss-backup --namespace=demo --repository=gcs-repo --schedule="*/4 * * * *" --target-apiversion=apps/v1 --target-kind=StatefulSet --target-name=stash-demo --paths=/source/data --volume-mounts=source-data:/source/data --keep-last=5 --prune=true

Create RestoreSession

To create a RestoreSession, you need to provide a Repository name, Target or VolumeClaimTemplate, etc. You will provide the Repository name, Target or VolumeClaimTemplate by using flags. The available flags are:

Flag Description
--namespace Indicates the namespace where the RestoreSession will be created
--target-apiversion API-Version of the target resource.
--target-kind Specify kind of the target resource.
--target-name Specify name of the target resource.
--repository specify name of the Repository.
--driver Driver indicates the mechanism used to backup (i.e. VolumeSnapshotter, Restic)
--task Name of the Task
--replica Replica specifies the number of replicas whose data should be backed up.
--paths A list of path that will be backed up
--volume-mounts A list of volumes and their mountPaths
--snapshots Specify the name of the Snapshot(single)
--host Specify the name of the Source host
--claim.name Specify the name of the VolumeClaimTemplate
--claim.access-modes Access mode of the VolumeClaimTemplates
--claim.storageclass Specify the name of the Storage secret for VolumeClaimTemplate
--claim.size Total requested size of the VolumeClaimTemplate
--claim.datasource DataSource of the VolumeClaimTemplate

Note: You must provide <volumenName>:<mountPath>:<subPath> in the --volume-mounts flag to specify the volumes and their mountPath and subPath. The :<subPath> part is optional.

Format:

kubectl stash create restoresession <restoresession-name> [flags]

Example:

$ kubectl stash create restoresession ss-restore --namespace=demo --repository=gcs-repo --target-apiversion=apps/v1 --target-kind=StatefulSet --target-name=stash-recovered --paths=/source/data --volume-mounts=source-data:/source/data

Copy Command

kubectl stash cp command is used to copy stash objects from one namespace to another namespace. It copies various objects like Secret, Repository, BackupConfiguration and VolumeSnapshot etc.

Copy Secret

To copy a Secret, you need to provide Secret name and destination namespace. You will provide the destination namespace by using flag. The available flags are:

Flag Description
--namespace Indicates the source namespace where the Secret has existed.
--to-namespace Indicates the destination namespace where the Secret will be copied.

Format:

kubectl stash cp secret <secret-name> [flags]

Example:

$ kubectl stash cp secret my-secret --namespace=demo --to-namespace=demo1

Copy Repository

To copy a Repository, you need to provide a Repository name and destination namespace. When we run the command the coping process consists of the following steps:

  • At first, the cli copies Secret from source namespace to destination namespace.
  • Then it copies Repository from source namespace to destination namespace.

You will provide the destination namespace by using flag. The available flags are:

Flag Description
--namespace Indicates the source namespace where the Repository has existed.
--to-namespace Indicates the destination namespace where the Repository will be copied.

Format:

kubectl stash cp repository <repository-name> [flags]

Example:

$ kubectl stash cp repository my-repo --namespce=demo --to-namespace=demo1

Copy BackupConfiguration

To copy a BackupConfiguration, you need to provide BackupConfiguration name and destination namespace. When we run the command the coping process consists of the following steps:

  • At first, the cli copies Secret from source namespace to destination namespace.
  • Then it copies Repository from source namespace to destination namespace.
  • finally it copies BackupConfiguration from source namespace to destination namespace.

You will provide the destination namespace by using flags. The available flags are:

Flag Description
--namespace Indicates the source namespace where the BackupConfiguration has existed.
--to-namespace Indicates the destination namespace where the BackupConfiguration will be copied.

Format:

kubectl stash cp backupconfig <backupconfig-name> [flags]

Example:

$ kubectl stash cp backupconfig my-backupconfig --namespace=demo --to-namespace=demo1

Copy VolumeSnapshot

To copy a VolumeSnapshot, you need to provide VolumeSnapshot name and destination namespace. You will provide the destination namespace by using flag. The available flags are:

Flag Description
--namespace Indicates the source namespace where the VolumeSnapshot has existed.
--to-namespace Indicates the destination namespace where the VolumeSnapshot will be copied.

Example:

$ kubectl stash cp volumesnapshot my-vol-snap --namespace=demo --to-namespace=demo1

Clone PVC

kubectl stash clone pvc command is used to clone PVC from one namespace to another namespace. When we run the command the cloning process consists of the following steps:

  • At first, It creates a Repository in the source namespace.
  • Using this repository, it creates a BackupConfiguration targeting the PVC to take backup.
  • After the backup process succeeded, It copies Repository to the destination namespace
  • finally, It restores the backed up data into VolumeClaimTemplate in the destination namespace.

To clone a PVC, you need to provide backend credentials for creating Repository. You will provide the backend credential by using flags. The available flags are:

Flag Description
--namespace Indicates the source namespace where the pvc has existed.
--to-namespace Indicates the destination namespace where the PVC will be cloned.
--secret Specify the name of the storage secret that will be used to create Repository
--bucket Specify the name of the cloud bucket/container.
--prefix Prefix denotes the directory inside the backend.
--provider Specify backend provider (i.e. gcs, s3, azure etc)
--endpoint Endpoint for s3/s3 compatible backend
--max-connections Specify maximum concurrent connections for GCS, Azure and B2 backend.

Format:

kubectl stash clone pvc <pvc-name> [flags]

Example:

$ kubectl stash clone pvc my-pvc -n demo --to-namespace=demo-1 --secret=<secret> --bucket=<bucket> --prefix=<prefix> --provider=<provider>

Trigger an Instant Backup

kubectl stash trigger command is used to take an instant backup in stash. To trigger an instant backup, you need to have a BackupConfiguration in your cluster. You need to provide the BackupConfiguration name. You can also provide the namespace by using the --namespace flag. This flag indicates the namespace where the trigger backup will be occurred.

Format:

kubectl stash trigger <backupconfig-name>[flags]

Example:

$ kubectl stash trigger my-config --namespace=demo

Unlock Repository

kubectl stash unlock are used to remove lock from the backend repository. To unlock the Repository, you need to provide a Repository name. You can also provide the namespace by using the --namespace flag. This flag indicates the Repository namespace.

Format:

kubectl stash unlock <repository-name> [flags]

Example:

$ kubectl stash unlock my-repo --namespace=demo

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