Comment 0 for bug 1865565

Brief Description
-----------------
Dex client url is not accessible when all the dex pods running on standby controller

Severity
--------
Major

Steps to Reproduce
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1)oidc-dex, stx-oidc-client is created on both the controllers initially
2)On the active controller-0, lock/unlock the standby controller
3)Now all the 4 pods move to controller-0
4)Now swact the controller-0
5)On the active controller-1, all pods still on standby controller-0
[sysadmin@controller-1 ~(keystone_admin)]$ kubectl get pods -n kube-system -o wide | grep oidc
oidc-dex-6b56c574bd-5wrcd 1/1 Running 0 30m dead:beef::8e22:765f:6121:eb5c controller-0 <none> <none>
oidc-dex-6b56c574bd-f2vmp 1/1 Running 1 69m dead:beef::8e22:765f:6121:eb52 controller-0 <none> <none>
stx-oidc-client-69f5785dd7-gsplr 1/1 Running 0 69m dead:beef::8e22:765f:6121:eb53 controller-0 <none> <none>
stx-oidc-client-69f5785dd7-ktwtp 1/1 Running 1 30m dead:beef::8e22:765f:6121:eb5b controller-0 <none> <none>

6)Try the client url https://<ip>:30555 which fails since there is no oidc-dex,stx-oidc-client running on active controller.

Expected Behavior
------------------
there is should be loadbalancer to pass the traffic to pods running on standby, only pods on active controller seems to respond to the client url requests now

Actual Behavior
----------------
client url doesn't work when all the pods are running on standby

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

System Configuration
--------------------
tested on all the following systems
duplex ipv6 r430_3_4

Branch/Pull Time/Commit
-----------------------
2020-03-02

Last Pass
---------
This is a new test scenario

Timestamp/Logs
--------------
2020-03-02T19:35:09.405194168Z

Test Activity
-------------
Feature Testing

Workaround
----------
Delete the pods manually, which creates the pods on active controller automatically solves the issue
[sysadmin@controller-1 ~(keystone_admin)]$ kubectl get pods -n kube-system -o wide | grep oidc
oidc-dex-6b56c574bd-bn6nw 1/1 Running 0 2m57s dead:beef::8e22:765f:6121:eb64 controller-0 <none> <none>
oidc-dex-6b56c574bd-r7vzn 1/1 Running 0 3m9s dead:beef::a4ce:fec1:5423:e306 controller-1 <none> <none>
stx-oidc-client-69f5785dd7-7h2rl 1/1 Running 3 2m39s dead:beef::a4ce:fec1:5423:e307 controller-1 <none> <none>
stx-oidc-client-69f5785dd7-ktwtp 1/1 Running 1 37m dead:beef::8e22:765f:6121:eb5b controller-0 <none> <none>