Be Specific on how deallocating machines in cluster resource group is not supported.
[Enter feedback here] Hi Team, this feedback is specific to the second bullet point under [Cluster configuration requirements]->[Compute]
Currently it was worded like this "Don't scale the cluster workers to zero, or attempt a cluster shutdown. Deallocating or powering down any virtual machine in the cluster resource group isn't supported."
I found this could be confusing for some users. Customer indeed can power off or delete their worker node, but just not in Azure portal correct? I'm testing in my cluster to create new machine set support ephemeral disk and deleting the old machine set. however, when I read the support document regarding powering down or deallocating the machine will cause my cluster to be in unsupported state is a bit confusing. If this meant something similar like AKS cluster doesn't support use to make any changes to the ARO infrastructure resource group directly from the portal, we might want to word something like this in the AKS support document.
https://learn.microsoft.com/en-us/azure/aks/support-policies#user-customization-of-agent-nodes
"AKS manages the lifecycle and operations of agent nodes on your behalf and modifying the IaaS resources associated with the agent nodes is not supported. An example of an unsupported operation is customizing a node pool virtual machine scale set by manually changing configurations in the Azure portal or from the API."
Document Details
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- ID: 06655dd8-72a7-f297-6b31-ae465b8e963a
- Version Independent ID: 598d28da-f7c3-ef63-c3bf-474dc3dad4df
- Content: Azure Red Hat OpenShift 4 cluster support policy - Azure Red Hat OpenShift
- Content Source: articles/openshift/support-policies-v4.md
- Service: azure-redhat-openshift
- GitHub Login: @johnmarco
- Microsoft Alias: johnmarc
@345624z Thanks for your feedback! We will investigate and update as appropriate.
@johnmarco Thank you for bringing this to our attention. I've delegated this to content author @johnmarco, who will review it and offer their insightful opinions.
Hello @345624z . After taking this issue to a support person, here is what I found out: "Deallocating or powering down any virtual machine in the cluster resource group"means trying to take any actions on any of the underlying VMs in the cluster. Any actions on the nodes/VMs should either be done through the cluster itself (such as scaling up/down a MachineSet), or by the CLI (such as az aro update/delete). A change will be made to the document to make this clearer.
#please-close