Rails container does not restart properly on OpenShift 4.x

[serhei]

Expected Behaviour (verified with Minishift 1.34.0 + OpenShift 3.11.0):

Doing an oc rollout will cleanly restart the Rails container:

$ git clone https://github.com/sclorg/rails-ex                                                                                                                                 
$ oc new-app rails-ex/openshift/templates/rails-postgresql.json -p SOURCE_REPOSITORY_URL=https://github.com/sclorg/rails-ex
$ oc get pods
NAME                               READY     STATUS      RESTARTS   AGE
postgresql-1-n8b94                 1/1       Running     0          20m
rails-postgresql-example-1-build   0/1       Completed   0          20m
rails-postgresql-example-1-tdl2n   1/1       Running     0          17m
$ oc rollout --latest rails-postgresql-example
$ oc get pods
NAME                               READY     STATUS      RESTARTS   AGE
postgresql-1-n8b94                 1/1       Running     0          21m
rails-postgresql-example-1-build   0/1       Completed   0          21m
rails-postgresql-example-2-xrk95   1/1       Running     0          31s

Actual Behaviour (verified with CodeReady Containers 1.2.0 + OpenShift 4.2.8)

On attempting oc rollout, the -hook-pre container hangs in 'Pending' state for over 30min:

$ git clone https://github.com/sclorg/rails-ex
$ oc new-app rails-ex/openshift/templates/rails-postgresql.json -p SOURCE_REPOSITORY_URL=https://github.com/sclorg/rails-ex
$ oc get pods
NAME                               READY   STATUS      RESTARTS   AGE
postgresql-1-46mtk                    1/1     Running     0          4m29s
postgresql-1-deploy                   0/1     Completed   0          4m46s
rails-postgresql-example-1-build      0/1     Completed   0          4m47s
rails-postgresql-example-1-deploy     1/1     Running     0          48s
rails-postgresql-example-1-hook-pre   0/1     Completed   0          39s
rails-postgresql-example-1-vzmtw      0/1     Running     0          15s
$ oc rollout latest rails-postgresql-example
$ oc get pods
NAME                                  READY   STATUS      RESTARTS   AGE
postgresql-1-46mtk                    1/1     Running     0          38m
postgresql-1-deploy                   0/1     Completed   0          38m
rails-postgresql-example-1-build      0/1     Completed   0          38m
rails-postgresql-example-1-deploy     0/1     Completed   0          34m
rails-postgresql-example-1-hook-pre   0/1     Completed   0          34m
rails-postgresql-example-1-vzmtw      1/1     Running     0          34m
rails-postgresql-example-2-deploy     1/1     Running     0          33m
rails-postgresql-example-2-hook-pre   0/1     Pending     0          33m

[phracek]

Hi @serhei , During the time we have migrated Rails-Ex application to Deployment.

Can you please verify, if the problem still persists? Thank you.
I see, as well, that you are using rails-postgresql.json which is ephemeral, would it be possible to test it with rails-postgresql-persistent.json? Thank you.

[phracek]

Closing this as the whole rail-ex application is working properly in OpenShift 4 environment. see tests.