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bmo-editing-the-hostfirmwaresettings-resource.adoc

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Editing the HostFirmwareSettings resource

You can edit the HostFirmwareSettings of provisioned hosts.

Important

You can only edit hosts when they are in the provisioned state, excluding read-only values. You cannot edit hosts in the externally provisioned state.
Procedure

  1. Get the list of HostFirmwareSettings resources:

    $ oc get hfs -n openshift-machine-api

  2. Edit a host’s HostFirmwareSettings resource:

    $ oc edit hfs <host_name> -n openshift-machine-api

    Where <host_name> is the name of a provisioned host. The HostFirmwareSettings resource will open in the default editor for your terminal.

  3. Add name/value pairs to the spec.settings section:

    Example
    spec:
  settings:
    name: value (1)

    1. Use the FirmwareSchema resource to identify the available settings for the host. You cannot set values that are read-only.

  4. Save the changes and exit the editor.

  5. Get the host’s machine name:

     $ oc get bmh <host_name> -n openshift-machine name

    Where <host_name> is the name of the host. The machine name appears under the CONSUMER field.

  6. Annotate the machine to delete it from the machineset:

    $ oc annotate machine <machine_name> machine.openshift.io/cluster-api-delete-machine=yes -n openshift-machine-api

    Where <machine_name> is the name of the machine to delete.

  7. Get a list of nodes and count the number of worker nodes:

    $ oc get nodes

  8. Get the machineset:

    $ oc get machinesets -n openshift-machine-api

  9. Scale the machineset:

    $ oc scale machineset <machineset_name> -n openshift-machine-api --replicas=<n-1>

    Where <machineset_name> is the name of the machineset and <n-1> is the decremented number of worker nodes.

  10. When the host enters the Available state, scale up the machineset to make the HostFirmwareSettings resource changes take effect:

    $ oc scale machineset <machineset_name> -n openshift-machine-api --replicas=<n>

    Where <machineset_name> is the name of the machineset and <n> is the number of worker nodes.