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charm-guide
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Nova AvailabilityZoneFilter removal in Bobcat 

Add documentation discussing AvailabilityZoneFilter removal in
Bobcat, including expected behavior and commands for determining
whether host aggregates have been mirrored to placement aggregates.

Closes-Bug: #2036766
Change-Id: I5543c960791617d2e7083aa989d97f3dc233ee86
This commit is contained in:
Corey Bryant 2023-10-02 12:06:02 -04:00
parent 118a222af4
commit 16b35ea4b2
1 changed files with 57 additions and 0 deletions
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doc/source/release-notes/2023.2-bobcat.rst
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@ -158,6 +158,61 @@ configured with `enable-serial-console`_ set to True.
For more details see `LP #2030094`_.
Nova AvailabilityZoneFilter removal in Bobcat
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The AvailabilityZoneFilter was removed from nova.conf in 2023.2 Bobcat
(see `nova 2023.2 upgrades`_). In order for the scheduler to honor an
availability zone request, there must now be a placement aggregate
that matches the nova host aggregate that was assigned the availability
zone.
Since nova 18.0.0 (Rocky), the nova-api service attempts to automatically
mirror the association of compute host with a placement aggregate when
a host is added/removed to/from a nova host aggregate.
The following example shows how to determine if mirroring of nova host
aggregates to placement aggregates has occurred:
.. code-block:: none
openstack aggregate list
+----+------+-------------------+
| ID | Name | Availability Zone |
+----+------+-------------------+
| 1 | myag | myaz |
+----+------+-------------------+
openstack aggregate show --column availability_zone --column hosts --column uuid myag
+-------------------+------------------------------------------------------+
| Field | Value |
+-------------------+------------------------------------------------------+
| availability_zone | myaz |
| hosts | juju-2c7db9-zaza-2349f0f509d3-14.project.serverstack |
| uuid | 4dd789b7-b4c3-45f1-8b2b-a6f5a8c37d55 |
+-------------------+------------------------------------------------------+
openstack resource provider list --column uuid --column name
+--------------------------------------+------------------------------------------------------+
| uuid | name |
+--------------------------------------+------------------------------------------------------+
| 482399c5-9ed7-4d4d-bdcf-c076dae99f2d | juju-2c7db9-zaza-2349f0f509d3-14.project.serverstack |
| d1322831-94db-4628-9adc-3406014d24e4 | juju-2c7db9-zaza-2349f0f509d3-15.project.serverstack |
| 624c0f64-8a2b-47c7-9ea6-e3f1de611bc2 | juju-2c7db9-zaza-2349f0f509d3-16.project.serverstack |
+--------------------------------------+------------------------------------------------------+
openstack resource provider aggregate list --column uuid 482399c5-9ed7-4d4d-bdcf-c076dae99f2d
+--------------------------------------+
| uuid |
+--------------------------------------+
| 4dd789b7-b4c3-45f1-8b2b-a6f5a8c37d55 |
+--------------------------------------+
Manual intervention will be required if an AZ-assigned Nova aggregate
is not associated with a Placement aggregate. This is done with the
``openstack resource provider aggregate set`` command (see `nova
aggregates in placement`_).
Documentation updates
---------------------
@ -220,6 +275,8 @@ use Juju 3.x unit agents are related to:
.. _interoperable image import: https://docs.openstack.org/glance/latest/admin/interoperable-image-import.html
.. _allow requests: https://docs.openstack.org/nova/latest/configuration/config.html#console.allowed_origins_
.. _enable-serial-console: https://charmhub.io/nova-cloud-controller/configure#enable-serial-console_
.. _nova 2023.2 upgrades: https://docs.openstack.org/releasenotes/nova/2023.2.html#upgrade-notes
.. _nova aggregates in placement: https://docs.openstack.org/nova/latest/admin/aggregates.html#aggregates-in-placement
.. COMMITS