Hello Team,
We've integrated Ceph cluster storage with Kubernetes and provisioning
volumes through rbd-provisioner. When we're creating volumes from yaml
files in Kubernetes, pv > pvc > mounting to pod, In kubernetes end pvc are
showing as meaningful naming convention as per yaml file defined. But in
ceph cluster, rbd image name is creating with dynamic uid.
During troubleshooting time, this will be tedious to find exact rbd image.
Please find the provisioning logs in below pasted snippet.
kubectl get pods,pv,pvc
NAME READY STATUS RESTARTS AGE
pod/sleepypod 1/1 Running 0 4m9s
NAME CAPACITY ACCESS MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS REASON
AGE
persistentvolume/pvc-cd37d2d6-cecc-4a05-9736-c8d80abde7f5 1Gi RWO Delete
Bound default/test-dyn-pvc ceph-rbd 4m9s
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE
persistentvolumeclaim/test-dyn-pvc Bound
pvc-cd37d2d6-cecc-4a05-9736-c8d80abde7f5 1Gi RWO ceph-rbd 4m11s
*rbd-provisioner logs*
I1121 10:59:15.009012 1 provision.go:132] successfully created rbd image
"kubernetes-dynamic-pvc-f4eac482-0c4d-11ea-8d70-8a582e0eb4e2" I1121
10:59:15.009092 1 controller.go:1087] provision "default/test-dyn-pvc"
class "ceph-rbd": volume "pvc-cd37d2d6-cecc-4a05-9736-c8d80abde7f5"
provisioned I1121 10:59:15.009138 1 controller.go:1101] provision
"default/test-dyn-pvc" class "ceph-rbd": trying to save persistentvvolume
"pvc-cd37d2d6-cecc-4a05-9736-c8d80abde7f5" I1121 10:59:15.020418 1
controller.go:1108] provision "default/test-dyn-pvc" class "ceph-rbd":
persistentvolume "pvc-cd37d2d6-cecc-4a05-9736-c8d80abde7f5" saved I1121
10:59:15.020476 1 controller.go:1149] provision "default/test-dyn-pvc"
class "ceph-rbd": succeeded I1121 10:59:15.020802 1 event.go:221]
Event(v1.ObjectReference{Kind:"PersistentVolumeClaim", Namespace:"default",
Name:"test-dyn-pvc", UID:"cd37d2d6-cecc-4a05-9736-c8d80abde7f5",
APIVersion:"v1", ResourceVersion:"24545639", FieldPath:""}): type: 'Normal'
reason: 'ProvisioningSucceeded' Successfully provisioned volume
pvc-cd37d2d6-cecc-4a05-9736-c8d80abde7f5
*rbd image details in Ceph cluster end*
rbd -p kube ls --long
NAME SIZE PARENT FMT PROT LOCK
kubernetes-dynamic-pvc-f4eac482-0c4d-11ea-8d70-8a582e0eb4e2 1 GiB 2
is there way to setup proper naming convention for rbd image as well during
kubernetes deployment itself.
Kubernetes version: v1.15.5
Ceph cluster version: 14.2.2 nautilus (stable)
*Best Regards,*
*Palanisamy*
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