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  1. Machine Config Operator
  2. MCO-554

Better support on custom layering MCO supported extensions and RT kernel rpms

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    Description

      With custom OS content, it is possible that admin can layer extensions like usbguard  with version x while also using MachineConfig to apply usbguard which has version y. This can lead node to go degraded when applying custom OS content.

       

      Similar behavior will be seen when RT kernel gets applied via layering as well as MachineConfig KernelType field.

       

      Currently, we are documenting our recommendation in product doc https://docs.openshift.com/container-platform/4.12/post_installation_configuration/coreos-layering.html but more robust solution will provide better user experience. Some options are preflight checks, MCO being more smart with handling content coming from osImage override and MachineConfig CRDs.

       

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          account is impacted by

          Bug - A problem that impairs or prevents the functions of the product. OCPBUGS-2214 Deploying an extension rpm with a MachineConfig and a custom osImage at the same time breaks the machine config pool

          • Normal - To be worked after urgent and high priorities are resolved. This term is chosen when the severity of an issue is relatively close to the level of effort to fix it. The existence of an easily implemented workaround can also lead to this priority level instead of a higher priority.
          • Closed

          Bug - A problem that impairs or prevents the functions of the product. OCPBUGS-7014 kernelType: realtime should be happy if custom image already has it

          • Normal - To be worked after urgent and high priorities are resolved. This term is chosen when the severity of an issue is relatively close to the level of effort to fix it. The existence of an easily implemented workaround can also lead to this priority level instead of a higher priority.
          • Closed

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              Unassigned Unassigned
              rhn-engineering-skumari Sinny Kumari
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