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UPSTREAM: 44798: Cinder: Automatically Generate Zone if Availability in Storage Class is not Configured #14159

Merged
merged 1 commit into from
May 13, 2017
Merged

UPSTREAM: 44798: Cinder: Automatically Generate Zone if Availability in Storage Class is not Configured #14159

merged 1 commit into from
May 13, 2017

Commits on May 12, 2017

  1. UPSTREAM: 44798: Cinder: Automatically Generate Zone if Availability … 

    …in Storage Class is not Configured

Backport of Kubernetes PR #44798 (kubernetes/kubernetes#44798).

In case the availability parameter is not configured in a cinder Storage Class the cinder volume is always provisioned in the nova availability zone. That is incorrect.

Now, the cinder volume is provisioned in a zone that is generated by an algorithm from the set of zone available in the cluster.

Positive side-effect: cinder volumes for individual pods in a StatefulSet are provisioned in unique zones. This increases the StatefulSet resilience.
    pospispa committed May 12, 2017
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