On-demand backup

KubeBlocks supports on-demand backups. You can customize your backup method by specifying --method. The instructions below take using a backup tool and volume snapshot as examples.

Backup tool

The following command uses the xtrabackup backup method to create a backup named mybackup.

kbcli

# Create a backup
kbcli cluster backup mysql-cluster --name mybackup --method xtrabackup
>
Backup mybackup created successfully, you can view the progress:
        kbcli cluster list-backups --name=mybackup -n default
        
# View the backup
kbcli cluster list-backups --name=mybackup -n default
>
NAME       NAMESPACE   SOURCE-CLUSTER   METHOD       STATUS      TOTAL-SIZE   DURATION   CREATE-TIME                  COMPLETION-TIME              EXPIRATION
mybackup   default     mysql-cluster    xtrabackup   Completed   4426858      2m8s       Oct 30,2023 15:19 UTC+0800   Oct 30,2023 15:21 UTC+0800

kubectl

# Create a backup
kubectl apply -f - <<-'EOF'
apiVersion: dataprotection.kubeblocks.io/v1alpha1
kind: Backup
metadata:
  name: mybackup
  namespace: default
  annotations:
    dataprotection.kubeblocks.io/connection-password: Bw1cR15mzfldc9hzGuK4m1BZQOzha6aBb1i9nlvoBdoE9to4
spec:
  backupMethod: xtrabackup
  backupPolicyName: mysql-cluster-mysql-backup-policy
EOF

# View the backup
kubectl get backup mybackup
>
NAME       POLICY                              METHOD       REPO      STATUS      TOTAL-SIZE   DURATION   CREATION-TIME          COMPLETION-TIME        EXPIRATION-TIME
mybackup   mysql-cluster-mysql-backup-policy   xtrabackup   my-repo   Completed   4426858      2m8s       2023-10-30T07:19:21Z   2023-10-30T07:21:28Z

note

The dataprotection.kubeblocks.io/connection-password in annotations uses the password of the original cluster.

Volume snapshot backup

To create a backup using the snapshot, the backupMethod in the YAML configuration file or the --method field in the kbcli command should be set to volume-snapshot.

kbcli

# Create a backup
kbcli cluster backup mysql-cluster --name mybackup --method volume-snapshot
>
Backup mybackup created successfully, you can view the progress:
        kbcli cluster list-backups --name=mybackup -n default
        
# View the backup
kbcli cluster list-backups --name=mybackup -n default
>
NAME       NAMESPACE   SOURCE-CLUSTER   METHOD            STATUS      TOTAL-SIZE   DURATION   CREATE-TIME                  COMPLETION-TIME              EXPIRATION
mybackup   default     mysql-cluster    volume-snapshot   Completed   4426858      2m8s       Oct 30,2023 15:19 UTC+0800   Oct 30,2023 15:21 UTC+0800

kubectl

# Create a backup
kubectl apply -f - <<-'EOF'
apiVersion: dataprotection.kubeblocks.io/v1alpha1
kind: Backup
metadata:
  name: mybackup
  namespace: default
spec:
  backupMethod: volume-snapshot
  backupPolicyName: mycluster-mysql-backup-policy
EOF

# View the backup
kubectl get backup mybackup
>
NAME       POLICY                              METHOD            REPO      STATUS      TOTAL-SIZE   DURATION   CREATION-TIME          COMPLETION-TIME        EXPIRATION-TIME
mybackup   mycluster-mysql-backup-policy       volume-snapshot   my-repo   Completed   4426858      2m8s       2023-10-30T07:19:21Z   2023-10-30T07:21:28Z

caution

1. When creating backups using snapshots, ensure that the storage used supports the snapshot feature; otherwise, the backup may fail.

2. Backups created manually using kbcli will not be automatically deleted. You need to manually delete them.