K
Q

Kubernetes/Openshift Statefulset example: cannot find volume plugin for alpha provisioning

1/27/2017

I'm trying to run this Zookeeper Openshift example or the equivalent kubernetes one, but I end with errors such as:

  FirstSeen     LastSeen        Count   From                    SubObjectPath   Type            Reason                  Message
  ---------     --------        -----   ----                    -------------   --------        ------                  -------
  1h            12s             281     {default-scheduler }                    Warning         FailedScheduling        [SchedulerPredicates failed due to PersistentVolumeClaim is not bound: "datadir-zoo-0", which is unexpected., SchedulerPredicates failed due to PersistentVolumeClaim is not bound: "datadir-zoo-0", which is unexpected.]

or

error finding provisioning plugin for claim test/datadir-zoo-2: cannot find volume plugin for alpha provisioning

Here is my openshift template.yaml

I'm note sure but I suspect that it might be due to line volume.alpha.kubernetes.io/storage-class: anything, because I don't think that there is any default StorageClass defined... If so how can I set up the most simple StorageClass to get this to work, because as I'm self-hosting my openshift origin cluster, I cannot fit into any of the cloud storage option (GCE, AWS, Azure, etc...)?

-- Syffys
kubernetes
openshift

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1 Answer

1/31/2017

I think it actually is more related to the setup of storage on your cluster.

There are several storage options as mentioned at OpenShift Origin: Persistent Storage

If you run it locally, you could use NFS (see OpenShift Origin: Persistent Storage using NFS).

If you run it in minishift or single node cluster, you can use HostPath (see Minishift Persistent Volumes). In this case it would be enough to create a PersistentVolume of size 1GB. Then the PersistentVolumeClaim in your template can be bound.

-- Bartosz Bierkowski
Source: StackOverflow