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Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. Add availability zones support to Azure managed disks **What this PR does / why we need it**: Continue of [Azure Availability Zone feature](https://github.com/kubernetes/features/issues/586). This PR adds availability zone support for Azure managed disks and its storage class. Zoned managed disks is enabled by default if there are zoned nodes in the cluster. The zone could also be customized by `zone` or `zones` parameter, e.g. ```yaml apiVersion: storage.k8s.io/v1 kind: StorageClass metadata: annotations: name: managed-disk-zone-1 parameters: zone: "southeastasia-1" # zones: "southeastasia-1,"southeastasia-2" cachingmode: None kind: Managed storageaccounttype: Standard_LRS provisioner: kubernetes.io/azure-disk reclaimPolicy: Delete volumeBindingMode: Immediate ``` All zoned AzureDisk PV will also be labeled with its availability zone, e.g. ```sh $ kubectl get pvc pvc-azuredisk-az-1 NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE pvc-azuredisk-az-1 Bound pvc-5ad0c7b8-8f0b-11e8-94f2-000d3a07de8c 5Gi RWO managed-disk-zone-1 2h $ kubectl get pv pvc-5ad0c7b8-8f0b-11e8-94f2-000d3a07de8c --show-labels NAME CAPACITY ACCESS MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS REASON AGE LABELS pvc-5ad0c7b8-8f0b-11e8-94f2-000d3a07de8c 5Gi RWO Delete Bound default/pvc-azuredisk-az-1 managed-disk-zone-1 2h failure-domain.beta.kubernetes.io/region=southeastasia,failure-domain.beta.kubernetes.io/zone=southeastasia-1 ``` **Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*: Fixes # **Special notes for your reviewer**: See also the [KEP](https://github.com/kubernetes/community/pull/2364). DynamicProvisioningScheduling feature would be added in a following PR. **Release note**: ```release-note Azure managed disks now support availability zones and new parameters `zoned`, `zone` and `zones` are added for AzureDisk storage class. ``` /kind feature /sig azure /assign @brendandburns @khenidak @andyzhangx
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