stable/queens|pike|ocata job failing due to disabled n-cauth service

[Ghanshyam Mann]

tempest-full-* jobs are failing on stable/queens, stable/pike, and stable/ocata(legacy-tempest-dsvm-neutron-full-ocata) [1]

Failure is due to "Timeout on connecting the vnc console url" because there is no 'n-cauth' service running which is required for these stable branches. In Ussuri that service has been removed from nova.

'n-cauth' has been removed from ENABLED_SERVICES recently in - https://review.opendev.org/#/c/700217/ which effected only stable branches till queens. stable/rocky|stein is working because we have moved the services enable things from devstack-gate's test matrix to devstack base job[2]. Patch[2] was not backported to stable/queens and stable/pike which I am not sure why.

Either we can re-enable the n-cauth for those brances or backport the 546765 till pike(but this does not fix ocata gate as there is no zuulv3 native devstack jobs)

[1]
- http://zuul.openstack.org/builds?job_name=tempest-full-queens-py3
- http://zuul.openstack.org/builds?job_name=tempest-full-pike
- http://zuul.openstack.org/builds?job_name=legacy-tempest-dsvm-neutron-full-ocata

[2] https://review.opendev.org/#/c/546765/

[Dr. Jens Harbott (j-harbott)]

Fixed via https://review.opendev.org/#/c/701404/ I guess