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Merge "Add options to disable migration in host maintenance"

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Zuul
2025-08-21 14:11:22 +00:00
committed by Gerrit Code Review
parent 90f0c2264c cc26b3b334
commit 616c8f4cc4
10 changed files with 984 additions and 19 deletions
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44
doc/source/strategies/host_maintenance.rst
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@@ -52,15 +52,29 @@ Configuration
Strategy parameters are:
==================== ====== ================================ ==================
parameter type description required/optional
==================== ====== ================================ ==================
``maintenance_node`` String The name of the compute node Required
which needs maintenance.
``backup_node`` String The name of the compute node Optional
which will backup the
maintenance node.
==================== ====== ================================ ==================
========================== ======== ========================== ==========
parameter type description required
========================== ======== ========================== ==========
``maintenance_node`` String The name of the Required
compute node
which needs maintenance.
``backup_node`` String The name of the compute Optional
node which will backup
the maintenance node.
``disable_live_migration`` Boolean False: Active instances Optional
will be live migrated.
True: Active instances
will be cold migrated
if cold migration is
not disabled. Otherwise,
they will be stopped.
False by default.
``disable_cold_migration`` Boolean False: Inactive instances Optional
will be cold migrated.
True: Inactive instances
will not be cold migrated.
False by default.
========================== ======== ========================== ==========
Efficacy Indicator
------------------
@@ -97,6 +111,18 @@ to compute02 host.
-p maintenance_node=compute01 \
-p backup_node=compute02
Run an audit using Host Maintenance strategy with migration disabled.
This will only stop active instances on compute01, useful for maintenance
scenarios where operators do not want to migrate workloads to other hosts.
.. code-block:: shell
$ openstack optimize audit create \
-g cluster_maintaining -s host_maintenance \
-p maintenance_node=compute01 \
-p disable_live_migration=True \
-p disable_cold_migration=True
Note that after executing this strategy, the *maintenance_node* will be
marked as disabled, with the reason set to ``watcher_maintaining``.
To enable the node again: