grafana not support ipv6 in grafana.ini.j2.

Closes-Bug: #1866141

Change-Id: Ia89a9283e70c10a624f25108b487528dbb370ee4
Signed-off-by: yj.bai <bai.yongjun@99cloud.net>

The support of vmware, xenserver and hyperv was deprecated.

Change-Id: Id06770c2247ce242f1fc2ac7220bbe6c3070598d

Following I21dd51c82534704f31ca8d3f72cb2587ee216cd9, the test inventory
was synced with the multinode inventory. This removed some temporary
ceph groups used by the ceph-ansible-upgrade jobs, and broke them. This
change adds the groups back.

Change-Id: I37379258447ffde6b083f4e8d9a1644bc17cd165

Change-Id: I68a40bebc174e8ebdaea36a0689b34cadb9009d2
Closes-bug: #1865840

The logrotate rotation interval and count are not configurable.
Currently, the configuration is a "default" that keeps 6 weeks of logs.

Change-Id: I4f55ee2a98f7861cb8de2724f5edc32da6d2f9ee

TrivialFix

Change-Id: I0e6924b5dc86e90c10037d96ab871bd981365cc9

Cleanup requirement and set ignore_basepython_conflict = True
in tox to avoid python version conflict warning which going
to be error in future.

Change-Id: Iae7e0bb9e8af52ec3aafba7508305d8692d3c762

Change-Id: I1439aa923a9129b752abb4acfb88559930b2178a

Change-Id: Ida7b387dabe815ca284bf206ac48e63248bfffba
Partially-Implements: blueprint centos-rhel-8

Inspired by pending work of mnasiadka [1] and mgoddard [2].

[1] https://review.opendev.org/708250
[2] https://review.opendev.org/707604

Depends-on: https://review.opendev.org/709362
Depends-on: https://review.opendev.org/709671
Depends-on: https://review.opendev.org/709830
Change-Id: Ifd7bde60881a4b644fc3f18dd9fcb7f8b02d3a00

Closes-Bug: #1864856
Change-Id: I725eeb18a22b3fa7838f16761d19f7e699ab5e82

This is to allow CI testing of network connectivity.

Note only "primary" node gets an address on it.
Hence, "primary" becomes our fake external router.

Depends-on: https://review.opendev.org/709361

Change-Id: I05592888796107d6de95b940c42b2bff73ac0669

Change-Id: I48148c56079a2998a8f8606ecd1f185f68733a6d
Partially-implements: blueprint custom-cacerts

Backport to: Train.

Change-Id: Ide96ea43739d47e623026f0aecd4163f3a2abe7f
Closes-bug: #1864615

Fix the upgrade TLS scenario in zuul to generate self signed
certificates and to configure TLS to be enabled in the open stack
deployment.

Change-Id: Icacc28eed6ad5b81fc3954db80486d9d7f24c082
Partially-Implements: blueprint custom-cacerts