Scaleway Block Storage

Scaleway block storage resources represent persistent block volumes managed by Scaleway. Plakar Control Plane backs up block storages by triggering a Scaleway snapshot export, which saves the volume as a QCOW2 image to a Scaleway Object Storage bucket. Plakar Control Plane then backs up that image into the Kloset store.

During restore, Plakar Control Plane uploads the QCOW2 image back to the bucket and uses it to recreate the block volume.

A dedicated Scaleway Object Storage bucket is required for this process. Plakar Control Plane uses this bucket as a temporary staging area when exporting and restoring block volume snapshots. We recommend creating a bucket specifically for this purpose, as it is also used when backing up other Scaleway resources such as instances.

flowchart TD
  subgraph Scaleway["Scaleway Project"]
    Volume["Block Storage Volume"]
    Snapshot["Snapshot Export
QCOW2 image"]

    subgraph Bucket["Object Storage Bucket
Temporary staging area"]
      Image["Exported QCOW2 image"]
    end
  end

  subgraph Plakar["Plakar Control Plane"]
    Source["Scaleway Block Storage
Source connector"]
    Backup["Backup process
Encrypt & deduplicate"]
  end

  Store["Kloset Store"]

  Source -->|"uses Scaleway API"| Volume
  Volume --> Snapshot
  Snapshot --> Image

  Image -->|"read from staging bucket"| Backup
  Backup --> Store

flowchart TD
  Store["Kloset Store"]

  subgraph Plakar["Plakar Control Plane"]
    Destination["Scaleway Block Storage
Destination connector"]
    Restore["Restore process"]
  end

  subgraph Scaleway["Scaleway Project"]
    Bucket["Object Storage Bucket
Staging area"]
    Image["Uploaded QCOW2 image"]
    Volume["Restored Block 
 Storage Volume"]
  end

  Store --> Restore
  Destination --> Restore

  Restore -->|"uploads QCOW2 image"| Bucket
  Bucket --> Image
  Image -->|"recreate block volume"| Volume

Scaleway block storage resources can be configured as a source or destination connector.

Automatically set to the Scaleway integration for any resource with class Block Storage managed by a Scaleway inventory.

The access key and secret key used to authenticate with Scaleway. See the documentation on Managing IAM Policies and API Keys on Scaleway for instructions on how to set up the permissions and generate an access key and secret key.

Optional. Hint Plakar Control Plane how to reach the resource in case the endpoint is ambiguous. Plakar Control Plane suggests endpoints discovered from the inventory, for example the block storage UUID 3dcd8901-d213-4ca4-89c5-85ba55a60ff7.

The Scaleway Object Storage bucket name. Used as a temporary staging area when exporting block storage snapshots. This bucket must exist before configuring the resource. We recommend using a dedicated bucket for Plakar Control Plane operations rather than a general-purpose bucket.

The Scaleway project ID that the block storage belongs to.

The Scaleway zone where the block volume storage. Suggested automatically from the inventory e.g. fr-par-1 .

Environment

Optional. The SLA environment covering this source, for example production, staging, or development. See the policies documentation for more details.

Data Class

Optional. The SLA data class covering this source, for example critical, database, or PII. See the policies documentation for more details.

Plakar Control Plane requires a set of IAM permissions on your Scaleway project to access block volumes and the staging Object Storage bucket. These permissions should be attached to an IAM application that Plakar Control Plane will use to authenticate. See the documentation on Managing IAM Policies and API Keys on Scaleway for instructions on how to set up the permissions and generate an access key and secret key.