New to Stash? Please start here.

Stash Backends

Stash supports various backends for storing data snapshots. It can be a cloud storage like GCS bucket, AWS S3, Azure Blob Storage etc. or a Kubernetes persistent volume like HostPath, PersistentVolumeClaim, NFS etc.

The following diagram shows how Stash sidecar container accesses and backs up data into a backend.

  

You have to create a Repository object which contains backend information and a Secret which contains necessary credentials to access the backend.

Stash sidecar/backup job reads backend information from the Repository and retrieves access credentials from the Secret. Then on the first backup session, Stash will initialize a repository in the backend.

Below, a screenshot that shows a repository created in AWS S3 bucket named stash-qa:

  

You will see all snapshots taken by Stash at /snapshot directory of this repository.

Note: Stash stores data encrypted at rest. So, snapshot files in the bucket will not contain any meaningful data until they are decrypted.

Next Steps

• Learn how to configure Kuberntes Volume as backend from here.
• Learn how to configure AWS S3/Minio/Rook backend from here.
• Learn how to configure Google Cloud Storage (GCS) backend from here.
• Learn how to configure Microsoft Azure Storage backend from here.
• Learn how to configure OpenStack Swift backend from here.
• Learn how to configure Backblaze B2 backend from here.
• Learn how to configure REST backend from here.