b'nerd Backup Operator¶

A Kubernetes operator for managing automated Restic-based volume backups, restores, and snapshot-based backups. Built with the Kopf framework.

What You Can Do¶

Scheduled Backups -- Automatically back up Kubernetes PersistentVolumeClaims on a cron schedule
One-Click Restores -- Restore data to new or existing PVCs from any backup snapshot
Snapshot Backups -- Create point-in-time backups from OpenStack Cinder volume snapshots
S3 Bucket Backups -- Back up entire S3-compatible buckets (AWS, Ceph, MinIO) to a Restic repository
Integrity Checks -- Periodic repository verification with configurable data subset scanning
Restore Testing -- Automated random file restore tests with SHA-256 checksum verification
Webhook Notifications -- HTTP callbacks on backup success or failure
Prometheus Metrics -- Full observability with pre-built alerts and Grafana dashboard
Multi-Cluster Support -- Back up volumes from remote clusters via kubeconfig

CRD	Short Name	Description
VolumeBackup	`vbkp`	Scheduled PVC backup via CronJob
VolumeRestore	`vrestore`, `vr`	One-time restore to a new or existing PVC
VolumeSnapshotBackup	`vsb`	OpenStack Cinder snapshot-based backup
S3Backup	`s3bkp`	S3 bucket-to-repository backup

All Restic-supported storage backends are available:

Backend	URL Format	Example
Amazon S3 / S3-compatible	`s3:endpoint/bucket/path`	`s3:s3.amazonaws.com/my-bucket/backups`
Google Cloud Storage	`gs:bucket/path`	`gs:my-gcs-bucket/backups`
Azure Blob Storage	`azure:container/path`	`azure:my-container/backups`
Local / NFS	`local:/path`	`local:/mnt/backup-storage`
SFTP	`sftp:host:/path`	`sftp:backup-server:/data/restic`
REST Server	`rest:url`	`rest:https://backup.example.com/repo`