stx-openstack upload fails: 'module' object has no attribute 'CEPH_POOL_BACKUP_PG_NUM'

[Alexandru Dimofte]

Brief Description
-----------------
stx-openstack upload-failed because of 'module' object has no attribute 'CEPH_POOL_BACKUP_PG_NUM'.

Severity
--------
<Major: System/Feature is usable but degraded>

Steps to Reproduce
------------------
Install http://mirror.starlingx.cengn.ca/mirror/starlingx/master/centos/flock/20201019T230234Z/outputs/iso/ and it will fails uploading stx-openstack.

Expected Behavior
------------------
This error should not exist.

Actual Behavior
----------------
Stx install fails at provisioning.

Reproducibility
---------------
100%

System Configuration
--------------------
all configurations are affected.

Branch/Pull Time/Commit
-----------------------
Master branch. Some changes were made on 19th-20th of October.

Last Pass
---------
19th of October 2020.

Timestamp/Logs
--------------
sysinv 2020-10-20 04:45:57.958 105738 INFO k8sapp_openstack.helm.neutron [-] _get_neutron_ml2_config={'ml2': {'physical_network_mtus': 'physnet0:1500,physnet1:1500'}, 'ml2_type_flat': {'flat_networks': ''}}
sysinv 2020-10-20 04:45:59.107 105738 ERROR sysinv.conductor.kube_app [-] 'module' object has no attribute 'CEPH_POOL_BACKUP_PG_NUM': AttributeError: 'module' object has no attribute 'CEPH_POOL_BACKUP_PG_NUM'

Entire log will be attached.

Test Activity
-------------
Sanity

Workaround
----------
-

[Bruce Jones (brucej)]

Yong can you please have someone from your team look into this, thanks!

[yong hu (yhu6)]

@shuicheng might help look at this issue. It looks like a recent regression.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/758914

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/758914
Committed: https://git.openstack.org/cgit/starlingx/openstack-armada-app/commit/?id=e972af2ec6dc97f1274edcd99c267bcb1f1eb893
Submitter: Zuul
Branch: master

commit e972af2ec6dc97f1274edcd99c267bcb1f1eb893
Author: Shuicheng Lin <email address hidden>
Date: Wed Oct 21 09:28:37 2020 +0800

    Correct CEPH_POOL_BACKUP_PG_NUM name to fix python module error

    The correct name should be CEPH_POOL_BACKUP_CHUNK_SIZE.

    Closes-Bug: 1900710

    Change-Id: Ie3aa2c6009cc626c2224ea464e8bea8c719316a3
    Signed-off-by: Shuicheng Lin <email address hidden>

[Lin Shuicheng (shuicheng)]

Here is the regression info:
It is caused by https://review.opendev.org/757015
The parameter definition name is changed during patch review, but it is not changed in the code, and lead to this error.

[Lin Shuicheng (shuicheng)]

If the test of applying stx-openstack was done, this issue should have been detected.