RFE-7972: Azure data disk IOPS/throughput configuration

[chdeshpa-hue]

Summary

Enhancement proposal for configuring provisioned IOPS (diskIOPSReadWrite) and throughput (diskMBpsReadWrite) on Azure PremiumV2_LRS and UltraSSD_LRS data disks during OpenShift cluster installation and day-2 machine scaling.

This extends the existing data disk support (SPLAT-2133/PR #1779) to allow fine-grained performance tuning and cost optimization — Azure PremiumV2 bills IOPS and throughput independently of disk capacity.

Key Points

• Extends DataDiskManagedDiskParameters in openshift/api with two new optional fields
• Adds PremiumV2_LRS to the existing StorageAccountType enum
• Full-stack propagation: install-config → CAPZ → Machine API → MAPO → Azure ARM API
• Validated on live Azure environment (OpenShift 4.22-rc.3) with custom builds
• No new CRDs or webhooks — extends existing MAO webhook validation

Implementation PRs (ready, pending this enhancement approval)

1. openshift/api — Add PremiumV2_LRS + IOPS/MBps to DataDiskManagedDiskParameters
2. openshift/installer — Support IOPS/MBps in install-config + CAPZ wiring
3. machine-api-provider-azure — Wire IOPS/MBps to Azure ARM API
4. machine-api-operator — Webhook validation for IOPS/MBps

Tracking: https://issues.redhat.com/browse/RFE-7972

Made with Cursor

[openshift-ci-robot]

@chdeshpa-hue: This pull request references RFE-7972 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the feature request to target the "5.0.0" version, but no target version was set.

Details

In response to this:

Summary

Enhancement proposal for configuring provisioned IOPS (diskIOPSReadWrite) and throughput (diskMBpsReadWrite) on Azure PremiumV2_LRS and UltraSSD_LRS data disks during OpenShift cluster installation and day-2 machine scaling.

This extends the existing data disk support (SPLAT-2133/PR #1779) to allow fine-grained performance tuning and cost optimization — Azure PremiumV2 bills IOPS and throughput independently of disk capacity.

Key Points

• Extends DataDiskManagedDiskParameters in openshift/api with two new optional fields
• Adds PremiumV2_LRS to the existing StorageAccountType enum
• Full-stack propagation: install-config → CAPZ → Machine API → MAPO → Azure ARM API
• Validated on live Azure environment (OpenShift 4.22-rc.3) with custom builds
• No new CRDs or webhooks — extends existing MAO webhook validation

Implementation PRs (ready, pending this enhancement approval)

1. openshift/api — Add PremiumV2_LRS + IOPS/MBps to DataDiskManagedDiskParameters
2. openshift/installer — Support IOPS/MBps in install-config + CAPZ wiring
3. machine-api-provider-azure — Wire IOPS/MBps to Azure ARM API
4. machine-api-operator — Webhook validation for IOPS/MBps

Tracking: https://issues.redhat.com/browse/RFE-7972

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[openshift-ci]

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[openshift-ci]

Hi @chdeshpa-hue. Thanks for your PR.

I'm waiting for a openshift member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work.

Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

Details

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[chdeshpa-hue]

cc @jcpowermac @lnguyen1401