docs/doc/source/updates/kubernetes/firmware-update-orchestration-using-the-cli.rst

Firmware Update Orchestration Using the CLI

You can configure the Firmware Update Orchestration Strategy using the sw-manager .

About this task

Note

You require administrator privileges to use sw-manager. You must log in to the active controller as user sysadmin and source the script by using the command, source /etc/platform/openrc to obtain administrator privileges. Do not use sudo.

Note

Management-affecting alarms cannot be ignored at the indicated severity level or higher by using relaxed alarm rules during an orchestrated firmware update operation. For a list of management-affecting alarms, see Fault Management: Alarm Messages <100-series-alarm-messages>. To display management-affecting active alarms, use the following command:

~(keystone_admin)$ fm alarm-list --mgmt_affecting

During an orchestrated firmware update operation, the following alarms are ignored even when strict restrictions are selected:

• 200.001: Maintenance host lock alarm
• 280.002: Subcloud resource out-of-sync
• 700.004: VM stopped
• 900.301: Firmware update auto apply in progress

You can use 'help' for the overall commands and also for each sub-command. For example:

~(keystone_admin)$ sw-manager fw-update-strategy –help
usage: sw-manager fw-update-strategy [-h]  ...
optional arguments:
-h, --help  show this help message and exit
Firmware Update Commands:
    create    Create a strategy
    delete    Delete a strategy
    apply     Apply a strategy
    abort     Abort a strategy
    show      Show a strategy

Firmware update orchestration strategy create

The create strategy subcommand with no options specified creates a firmware update strategy with default settings. A firmware update strategy can be created with override worker apply type concurrency with a max host parallelism, instance action, and alarm restrictions.

--controller-apply-type, and --storage-apply-type

These options cannot be changed from 'ignore' because firmware update is only supported for worker hosts.

Note

Firmware update is currently only supported for hosts with worker function. Any attempt to modify the controller or storage apply type is rejected.

--worker-apply-type

This option specifies the host concurrency of the firmware update strategy:

• serial (default): worker hosts will be patched one at a time
• parallel: worker hosts will be updated in parallel
  • At most, parallel will be updated at the same time
  • At most, half of the hosts in a host aggregate will be updated at the same time
• ignore: worker hosts will not be updated; strategy create will fail

Worker hosts with no instances are updated before worker hosts with instances.

--max-parallel-worker-hosts

This option applies to the parallel worker apply type selection to specify the maximum worker hosts to update in parallel (minimum: 2, maximum: 10).

–instance-action

This option only has significance when the stx-openstack application is loaded and there are instances running on worker hosts. It specifies how the strategy deals with worker host instances over the strategy execution.

stop-start (default)

Instances will be stopped before the host lock operation following the update and then started again following the host unlock.

Warning

Using the stop-start option will result in an outage for each instance, as it is stopped while the worker host is locked/unlocked. In order to ensure this does not impact service, instances MUST be grouped into anti-affinity (or anti-affinity best effort) server groups, which will ensure that only a single instance in each server group is stopped at a time.

migrate

Instances will be migrated off a host before it is patched (this applies to reboot patching only).

--alarm-restrictions

This option sets how the how the firmware update orchestration behaves when alarms are present.

To display management-affecting active alarms, use the following command:

~(keystone_admin)$ fm alarm-list --mgmt_affecting

strict (default)

The default strict option will result in patch orchestration failing if there are any alarms present in the system (except for a small list of alarms).

relaxed

This option allows orchestration to proceed if alarms are present, as long as none of these alarms are management affecting.

~(keystone_admin)]$ sw-manager fw-update-strategy create --help
usage:sw-manager fw-update-strategy create  [-h]
                                            [--controller-apply-type {ignore}]
                                            [--storage-apply-type {ignore}]
                                            [--worker-apply-type
                                            {serial,parallel,ignore}]
                                            [--max-parallel-worker-hosts
                                            {2,3,4,5,6,7,8,9,10}]
                                            [--instance-action {migrate,stop-start}]
                                            [--alarm-restrictions {strict,relaxed}]

optional arguments:
-h, --help            show this help message and exit
--controller-apply-type {ignore}
                        defaults to ignore
--storage-apply-type {ignore}
                        defaults to ignore
--worker-apply-type {serial,parallel,ignore}
                        defaults to serial
--max-parallel-worker-hosts {2,3,4,5,6,7,8,9,10}
                        maximum worker hosts to update in parallel
--instance-action {migrate,stop-start}
                        defaults to stop-start
--alarm-restrictions {strict,relaxed}
                        defaults to strict

Firmware update orchestration strategy show

The show strategy subcommand displays a summary of the current state of the strategy. A complete view of the strategy can be shown using the --details option.

~(keystone_admin)]$ sw-manager fw-update-strategy show --help
usage: sw-manager fw-update-strategy show [-h] [--details]

optional arguments:
-h, --help  show this help message and exit
--details   show strategy details

Firmware update orchestration strategy apply

The apply strategy subcommand with no options executes the firmware update strategy from current state to the end. The apply strategy operation can be called with the stage-id option to execute the next stage of the strategy. The stage-id option cannot be used to execute the strategy out of order.

~(keystone_admin)]$ sw-manager fw-update-strategy apply --help
usage: sw-manager fw-update-strategy apply [-h] [--stage-id STAGE_ID]

optional arguments:
-h, --help           show this help message and exit
--stage-id STAGE_ID  stage identifier to apply

Firmware update orchestration strategy abort

The abort strategy subcommand with no options sets the strategy to abort after the current applying stage is complete. The abort strategy operation can be called with the stage-id option to specify that the strategy abort before executing the next stage of the strategy. The stage-id option cannot be used to execute the strategy out of order.

~(keystone_admin)]$ sw-manager fw-update-strategy abort --help
usage: sw-manager fw-update-strategy abort [-h] [--stage-id STAGE_ID]

optional arguments:
-h, --help           show this help message and exit
--stage-id STAGE_ID  stage identifier to abort

Firmware update orchestration strategy delete

The delete strategy subcommand with no options deletes a strategy.

~(keystone_admin)]$sw-manager fw-update-strategy delete --help
usage: sw-manager fw-update-strategy delete [-h]

optional arguments:
-h, --help  show this help message and exit