After STX-Openstack upversioned to Antelope, we noticed that it was not
possible to create VMs by volume, as they would be stuck on ERROR
status. The first idea I had to solve this was to create a patch
containing [1] and [2], because, as specified in [3], Nova now requires
a service token in order to be able to manipulate Cinder volumes. This
unfortunately did not solve the issue by itself, as now an error message
showed up on the nova-conductor pods with the following (not full error
message, only important part): "nova.exception.RescheduledException:
Build of instance 2f32c7ea-1720-4f61-bce8-dbe970c40b0c was re-scheduled:
Secret not found: no secret with matching uuid 'a7f3ae2e-cee7-4f04-9402
-a78047747654". This UUID was not the same one present when issuing
`virsh secret-list` on Cinder, Nova and Libvirt containers.
Turns out openstack-helm and openstack-helm-infra have a Ceph UUID
hardcoded in them, in Cinder [4], Nova [5] [6] and Libvirt [7] values.
By changing these values to the UUID that libvirt was trying to find
(7f3ae2e-cee7-4f04-9402-a78047747654), and it worked to solve the issue.
However, it is not a good practice to use hardcoded values, and,
searching on where this UUID was coming from, it turns out it was
defined by the platform's Ceph configuration under
`/etc/ceph/ceph.conf`.
What this change does is dynamically read this `/etc/ceph/ceph.conf`
file to search for the UUID value, and use it to override the [4] [5]
[6] and [7] values. It also adds the patch including the Nova service
token configuration. The combination of these 2 changes allows VMs to be
created by volumes.
[1] 91c8a5baf2
[2] 7d39af25fd
[3] https://docs.openstack.org/releasenotes/cinder/2023.1.html#upgrade-notes
[4] https://opendev.org/openstack/openstack-helm/src/branch/master/cinder/values.yaml#L942
[5] https://opendev.org/openstack/openstack-helm/src/branch/master/nova/values.yaml#L594
[6] https://opendev.org/openstack/openstack-helm/src/branch/master/nova/values.yaml#L1432
[7] https://opendev.org/openstack/openstack-helm-infra/src/branch/master/libvirt/values.yaml#L100
Test Plan:
PASS: Build openstack-helm, python3-k8sapp-openstack and
stx-openstack-helm-fluxcd
PASS: Upload / apply / remove STX-Openstack
PASS: Create a VM by an image
PASS: Create a volume and launch a VM from it
PASS: Create a VM using the `boot-from-volume` flag
PASS: Delete a VM created by a volume
Closes-Bug: 2037463
Change-Id: Ia00bb8dbe3460ce817d69049f97f56a96ad6a298
Signed-off-by: Lucas de Ataides <lucas.deataidesbarreto@windriver.com>
cba7b53fb1