I want to migrate keycloak from one node to another , how can I persist data? #41889

Prateekk666 · 2025-08-14T15:34:14Z

Prateekk666
Aug 14, 2025

I am migrating my workload from one node to another , I have keycloak stateful set deployed , pods are running on one node, I want to migrate them to a newer node.
I have a pvc provisined with aws-ebs for then .
still if i try to drain the statefulset it is giving me error as:
kubectl drain ip-19x-xxx-xx-xxx.ec2.internal --ignore-daemonsets

node/ip-19x-xxx-xx-xxx.ec2.internal already cordoned
error: unable to drain node "ip-19x-xxx-xx-xxx.ec2.internal", aborting command...

There are pending nodes to be drained:
 ip-19x-xxx-xx-xxx.ec2.internal
error: cannot delete Pods with local storage (use --delete-local-data to override): keycloak/keycloak-0, keycloak/keycloak-postgresql-0

storageclass:

 Name:            gp2
IsDefaultClass:  Yes
Annotations:     kubectl.kubernetes.io/last-applied-configuration={"apiVersion":"storage.k8s.io/v1","kind":"StorageClass","metadata":{"annotations":{"storageclass.kubernetes.io/is-default-class":"true"},"name":"gp2"},"parameters":{"fsType":"ext4","type":"gp2"},"provisioner":"kubernetes.io/aws-ebs","volumeBindingMode":"WaitForFirstConsumer"}
,storageclass.kubernetes.io/is-default-class=true
Provisioner:           kubernetes.io/aws-ebs
Parameters:            fsType=ext4,type=gp2
AllowVolumeExpansion:  <unset>
MountOptions:          <none>
ReclaimPolicy:         Delete
VolumeBindingMode:     WaitForFirstConsumer
Events:                <none>

How can i safely migrate this? I don't want to take a risk of deleting any data

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I want to migrate keycloak from one node to another , how can I persist data? #41889

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I want to migrate keycloak from one node to another , how can I persist data? #41889

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Prateekk666 Aug 14, 2025

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Prateekk666
Aug 14, 2025