Test single-host/default-host workspace strategy on multi-user mode on different cloud platforms

[metlos]

All our primary development of Che server happens on minikube/minishift, which is not what is put in production.

Different cloud providers realize ingresses using different kinds of ingress controllers within those clusters.

We should therefore test that we can successfully use Che in such clusters.

Multi-user mode is going to be common scenario for Che server deployment in a cluster so we should make sure that we are able to configure Che in such a way that it works in "real" clusters.

The list of tested platforms should IMHO at least include:

• AWS
• GKE

More importantly though, we should try to use other ingress controllers than just nginx in those clusters and try to make Che server correctly work in single-host mode using those other ingress controllers.

The single-host strategy in multi-user mode is tracked by the issue:
#14189

[che-bot]

Issues go stale after 180 days of inactivity. lifecycle/stale issues rot after an additional 7 days of inactivity and eventually close.

Mark the issue as fresh with /remove-lifecycle stale in a new comment.

If this issue is safe to close now please do so.

Moderators: Add lifecycle/frozen label to avoid stale mode.