Create a Kubernetes Upgrade Orchestration using Horizon

Use the Horizon Web interface as an alternative to the CLI for managing Kubernetes upgrade strategies.

About this task

Only one update strategy can exist at a time. The strategy controls how the subclouds are updated (for example, serially or in parallel).


Management-affecting alarms cannot be ignored using relaxed alarm rules during an orchestrated Kubernetes version upgrade operation. For a list of management-affecting alarms, see StarlingX Fault Management: Alarm messages.

You can use the Horizon Web interface to check the alarm states:

  1. Select the SystemController region.

  2. Select Admin > Fault Management.

  3. Select Active Alarms.


  1. Select the SystemController region.

  2. Select Distributed Cloud Admin > Orchestration.

  3. On the Orchestration page, select the Orchestration Strategy tab.


    Orchestration Strategy

  4. Create a new strategy.

    On the Orchestration Strategy tab, click Create Strategy. In the Create Strategy dialog box, adjust the settings as needed.

    Strategy Type


    To version

    Select a version to be applied for strategy.

    Apply to

    Subcloud or Subcloud Group.


    Enter the subcloud name.

    Subcloud Group

    Enter the subcloud group name only if you select the Apply to: Subcloud Group option.

    Stop on Failure

    Default: True

    Determines whether update orchestration failure for a subcloud prevents application to subsequent subclouds.

    Subcloud Apply Type

    Default: Parallel

    Parallel or Serial. Determines whether the subclouds are updated in parallel or serially.

    Maximum Parallel Subclouds

    Default: 20

    If this is not specified using the CLI, the values for max_parallel_subclouds defined for each subcloud group will be used by default.


    Default: False

    Force kube upgrade to a subcloud which is in-sync with system controller.


    Create a strategy

  5. Adjust how Kubernetes is upgraded on RegionOne and on subclouds.

  6. Save the new strategy.

    Click Create Strategy.


Only subclouds in the Managed state and whose patching sync status is out-of-sync are added to the list. To change the Kubernetes Upgrade strategy settings, you must delete the current strategy and create a new one. You must confirm before applying the strategy. If the strategy is older than 60 minutes, a warning message will be display on this popup. You can simply apply the strategy or verify that it is still valid.