No dedicated charm option to specify reserved_host_disk_mb

[Nobuto Murata]

The charm has "reserved-host-memory" and "reserved-huge-pages" exposed as dedicated charm options.
https://jaas.ai/nova-compute#charm-config-reserved-host-memory
https://jaas.ai/nova-compute#charm-config-reserved-huge-pages

However, there is no dedicated option to expose "reserved_host_disk_mb".
https://github.com/openstack/nova/blob/75f719e022ab43b2f66f7e5a487742ddd8e4aa74/nova/conf/compute.py#L365-L378

Just to clarify reserved_host_cpus doesn't need to be exposed since it's mutually exclusive with cpu_shared_set and cpu_dedicated_set which are already exposed as charm options.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/charm-nova-compute/+/819255

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/charm-nova-compute/+/819255
Committed: https://opendev.org/openstack/charm-nova-compute/commit/a5dc16393ad94d9029a5de1605177d14f57f1af9
Submitter: "Zuul (22348)"
Branch: master

commit a5dc16393ad94d9029a5de1605177d14f57f1af9
Author: Nobuto Murata <email address hidden>
Date: Thu Nov 25 15:44:48 2021 +0900

    Expose reserved_host_disk_mb for nova.conf

    The config is necessary to calculate available disk space for VMs with
    disk-allocation-ratio which is already exposed as a charm option.

    Closes-Bug: #1952184
    Change-Id: I0ef55987517bded50f855e0dbc5e420cfbff4c1b

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/xena
Review: https://review.opendev.org/c/openstack/charm-nova-compute/+/836417

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/charm-nova-compute/+/836417
Committed: https://opendev.org/openstack/charm-nova-compute/commit/b5cc605b66f2fc2155bb09462429cd7b06a41bc9
Submitter: "Zuul (22348)"
Branch: stable/xena

commit b5cc605b66f2fc2155bb09462429cd7b06a41bc9
Author: Nobuto Murata <email address hidden>
Date: Thu Nov 25 15:44:48 2021 +0900

    Expose reserved_host_disk_mb for nova.conf

    The config is necessary to calculate available disk space for VMs with
    disk-allocation-ratio which is already exposed as a charm option.

    Closes-Bug: #1952184
    Change-Id: I0ef55987517bded50f855e0dbc5e420cfbff4c1b
    (cherry picked from commit a5dc16393ad94d9029a5de1605177d14f57f1af9)

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/charm-guide/+/837654

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/charm-guide/+/837654
Committed: https://opendev.org/openstack/charm-guide/commit/92aafabfe0fcfb092ef6966cbebc5877e6c22848
Submitter: "Zuul (22348)"
Branch: master

commit 92aafabfe0fcfb092ef6966cbebc5877e6c22848
Author: Nobuto Murata <email address hidden>
Date: Wed Apr 13 11:57:42 2022 +0900

    release-notes: reserved-host-disk

    Closes-Bug: #1952184
    Change-Id: I90a1ba83293b795f0b99e2fbc756d5cbfc70a300