Configure admin namespace
Admin namespace in Portworx Backup
Portworx Backup allows you to configure a dedicated and standard custom admin namespace to save all your backup-related Kubernetes resources such as secrets, backup and restore CRs, schedule CRs, and so on for multi-namespace backups and restores.
Earlier custom resources related to Portworx Backup were stored in the kube-system
namespace along with other key Kubernetes resources. Custom admin namespace segregates critical backup custom resources from kube-system
and enables the latter to contain only Kubernetes resources.
Prerequisites:
- Ensure that your Stork version is 23.9.1 and above
For more information on installing Stork, refer Stork in Portworx Backup.
Operator method
If you have installed Stork with Portworx operator method, perform the following steps to configure a namespace of your choice as admin namespace:
Run the following command to edit the Stork configuration within the storagecluster:
kubectl edit storagecluster <clusterspec-name> -n <stork-deployed-namespace>
In the editor, update the arguments in the Stork spec to specify the cluster admin namespace using the admin-namespace parameter.
stork:
args:
admin-namespace: <custom admin_namespace>
webhook-controller: "true"In the above example, you configured a namespace of your choice called
admin_namespace
as admin namespace.Save the changes, wait until all the Stork pods are recreated and are in
Running
state after the changes are applied:kubectl get pods -l name=stork -n kube-system
Output:
NAME READY STATUS RESTARTS AGE
stork-6fdd7d567b-4w86q 1/1 Running 0 63s
stork-6fdd7d567b-lj47r 1/1 Running 0 60s
stork-6fdd7d567b-m6pk7 1/1 Running 0 59scautionAfter you configure a custom admin namespace, make sure you do not delete it and always exists. Backups fail if the admin namespace does not exist.
noteAdmin namespace configuration is one time activity, once a custom admin namespace is configured do not reconfigure another namespace as an admin namespace.
Deployment method
If you have installed Stork using deployment method, configure admin namespace with the below commands:
Edit the Stork deployment from Kubernetes CLI:
kubectl edit deployment stork -n <stork-deployed-namespace>
In the deployment spec, add the parameter
- --admin-namespace=<custom admin-namespace>
under containers section:containers:
- command:
- /stork
- --admin-namespace=<custom-admin-namespace>
- --verbose
- --leader-elect=true
- --health-monitor-interval=120
- --webhook-controller=trueSave the changes, wait for all the Stork pods to be recreated and are in a
Running
state after the changes are applied.kubectl get pods -l name=stork -n kube-system
Output:
NAME READY STATUS RESTARTS AGE
stork-6fdd7d567b-4w86q 1/1 Running 0 63s
stork-6fdd7d567b-lj47r 1/1 Running 0 60s
stork-6fdd7d567b-m6pk7 1/1 Running 0 59snoteAdmin namespace configuration remains unchanged with Stork upgrade regardless of the Stork deployment method.