How to restore a specific pvc if backup all

[stevemayster]

Hello.
I try to understand how we can restore specific PV backup if we backup all PV in a cluster
Can you give me an example?
I would appreciate it

[Kidswiss]

Hi @stevemayster

Did you have a look at our restore guide? https://docs.k8up.io/k8up/2.11/how-tos/restore.html

If so, where do you struggle?

[stevemayster]

Hello @Kidswiss.
Yes, i read manual and spend some time to googling.
Still don't understand. In manual we create a bucket for S3 and make a backup of all PV.
Then we restore it using same bucket. But what if we have many PV? How to specify the one we need?
Maybe i miss something? Can you please point me to right direction?

[Kidswiss]

Hi @stevemayster

Each snapshot contains exactly one PVC. You can use the snapshot objects to determine which ID matches to which PVC, the paths field contains the name of the PVC that has been backed up in this snapshot. Then use that ID to do the restore via k8up cli, restic or a restore object.

kubectl get snapshots 162e7a85 -oyaml
apiVersion: k8up.io/v1
kind: Snapshot
metadata:
  name: 162e7a85
  namespace: default
spec:
  date: "2023-03-03T07:34:42Z"
  id: 162e7a85acbc14de93dad31a3699331cb32187ff0d7bd2227b7c4362a1d13a42 # ID for the restore
  paths:
  - /data/subject-pvc # Name of the PVC
  repository: s3:http://minio.minio.svc.cluster.local:9000/backup

[stevemayster]

@Kidswiss many thanks for your answer!
So if i understand you right, i can just specify id of snapshot in restore.yaml. Is it right?

---
apiVersion: k8up.io/v1
kind: Restore
metadata:
  name: restore-test-mfw
  namespace: k8up
spec:
  id: 162e7a85acbc14de93dad31a3699331cb32187ff0d7bd2227b7c4362a1d13a42
  podSecurityContext:
    fsGroup: 65532
    fsGroupChangePolicy: OnRootMismatch
  restoreMethod:
    folder:
      claimName: restore-test-mfw
  backend:
    repoPasswordSecretRef:
      name: "restic-repository-password"
      key: "password"
    s3:
      accessKeyIDSecretRef:
        key: username
        name: s3-secrets
      bucket: k8up
      endpoint: http://minio:9000
      secretAccessKeySecretRef:
        key: password
        name: s3-secrets

[stevemayster]

@Kidswiss sorry, it seems i ignored the elephant in the room) I need to use snapshot to specify snapshot id, as mention in documentation.

apiVersion: k8up.io/v1
kind: Restore
metadata:
name: restore-test
spec:
snapshot: 162e7a85acbc14de93dad31a3699331cb32187ff0d7bd2227b7c4362a1d13a42
backend:
...

[Kidswiss]

@stevemayster Yes that's right Snapshot contains the information you need to figure out which PVC has been backed up.

Were you successful in restoring you data?

[stevemayster]

Hello @Kidswiss. Yes, i successfully restore PVC using snapshot id. Thank you for help!