Support single-user mode

[tolusha]

Signed-off-by: Anatoliy Bazko [email protected]

Reference issue

eclipse-che/che#13420

How to deploy single user:

CR resource should contains:

spec:
  server:
    customCheProperties:
       CHE_MULTIUSER: "false"

[AndrienkoAleksandr]

I think it should be called DefaultCheVolumeClaimName, because we don't create volume itself. che-operator creates volumeClaim and infra provide real volume for us.

[AndrienkoAleksandr]

Ok I see, we are using the same name for volume and claim, so let it be.

[sleshchenko]

spec:
  server:
    customCheProperties:
       CHE_MULTIUSER: "false"

Single/Multi-user mode is not a custom property but kind of fundamental settings because it influences not the only server but also database and auth sections, actually singleUser mode makes that sections ignored, right?
So, please consider moving multi-user property to server level, or even on root spec.

[AndrienkoAleksandr]

@tolusha Do we need OLM artifacts for this pr?

[tolusha]

@AndrienkoAleksandr
no

[AndrienkoAleksandr]

Tested with minikube, minishift, CRC. Single and Multi user installation works fine.

[tolusha]

@sleshchenko One more point
Single user mode isn't supported

[sleshchenko]

Single user mode isn't supported

@tolusha If we don't want to support SingleUser Che officially by operator - then I'm totally OK with hiding such an ability in customCheProperties.

[tolusha]

@l0rd
This pr allows to install Che in single user mode by operator.
The main goal of the PR is to deprecate completely deploy.sh script.
That's why I would like to "hide" this functionality in customCheProperties like this and not document at all.

spec:
  server:
    customCheProperties:
       CHE_MULTIUSER: "false"

wdyt?