You can use Velero to backup specific CNF persisent volumes in the same workload cluster.
Prerequisites
Install and Configure Velero Add-On for the Workload Clusters.
Procedure
- Log in to the VMware Telco Cloud Automation web interface.
- Navigate to Infrastructure > Virtual Infrastructure.
- Open the web terminal by clicking Options (three dots) corresponding to the workload cluster you want to back up and then selecting Open Terminal.
- On the web terminal, check the service health of Velero by running the following command:
# kubectl get pod -n velero # kubectl get bsl -n velero
- Back up CNF's specific persisent volumes matching the label selector.
1. firstly label the pvc and pv that to be backed up # kubectl -n <cnf-namespaces> label pvc <example-pvc> <key>=<value> # kubectl label pv <example-pv> <key>=<value> 2. backup the k8s resources matching the label selector # velero backup create <example-pv-backup> --selector <key>=<value>
Also you can use "--include-resources" flag to back up all persistent volumes under some namespaces:
# velero backup create <example-pv-backup> --include-resources pvc,pv --include-namespaces <cnf-namespaces-by-comma>
For more resource filtering method, please refer to velero resource filtering doc.
The backup command above uses velero-plugin-for-vsphere as default to back up the Persistent Volumes created with vSphere CSI storage class. If there exists Persistent Volumes created with nfs-client storage class to be backed up, change default PV backup plugin to Restic with velero cli flag "--default-volumes-to-fs-backup". This will use Restic to back up all kinds of Persistent Volumes, including the ones created with vSphere CSI storage class.
1. firstly label the pvc/pv. For nfs pv, please also label the pod which is mounting this pv # kubectl -n <cnf-namespaces> label pvc <example-pvc> <key>=<value> # kubectl label pv <example-pv> <key>=<value> # kubectl -n <cnf-namespaces> label pod <example-pod> <key>=<value> 2. backup the k8s resources matching the label selector # velero backup create <example-pv-backup> --selector <key>=<value> --default-volumes-to-fs-backup
You can also choose to back up all the persistent volumes using Restic plugin under some namespaces:
# velero backup create <example-pv-backup> --include-resources pvc,pv,pod --include-namespaces <cnf-namespaces-by-comma> --default-volumes-to-fs-backup
- Check backup status and related CRs and wait until the processes are "Completed".
# velero backup get // check the backup status
Check the status of uploads CR if using velero-plugin-for-vsphere to back up PV data.# kubectl get uploads -n velero // get the upload-name # kubectl get uploads <upload-name> -o yaml // check the uploads status in yaml output
If you annotate pods and use restic to back up PV, check the status of podvolumebackups CR.
# kubectl get podvolumebackups -n velero // get the podvolumebackup-name # kubectl get podvolumebackups <podvolumebackup-name> -o yaml // check the podvolumebackups status in yaml output
