Block on unsupported Kubernetes version

[fabriziopandini]

User Story

As a operator, I would like to get informed about unsupported Kubernetes versions when creating resources.

Detailed Description

As per #4292 (comment)

CABPK currently supports only Kubernetes versions >= v1.13, but the user does not get an error message when creating Machines/MachineDeployments/KubeadmControlPlane with older version

Anything else you would like to add:

This is tricky, because in some cases the kubernetes version could be defined on another resources vs the KubeadmConfig/KubeadmConfigTemplate (e.g. Machines, Machine deployments), and those resurces are generic - should not be bound to CABPK limitations.

/kind feature

[fabriziopandini]

/milestone v0.4.0
/area bootstrap
/area control plane
/priority backlog

[k8s-ci-robot]

@fabriziopandini: The label(s) area/control, area/plane cannot be applied, because the repository doesn't have them.

In response to this:

/milestone v0.4.0
/area bootstrap
/area control plane
/priority backlog

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[CecileRobertMichon]

Is this a duplicate of #3697 ?

[fabriziopandini]

#3697 is about semantic validation of the version
This is issue is about the fact the CABPK supports only a subset of Kubernetes versions ( >= v1.13)

[fejta-bot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.

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

Send feedback to sig-contributor-experience at kubernetes/community.
/lifecycle stale

[vincepri]

/lifecycle frozen

@fabriziopandini What are some action items we can take as part of this issue?

[fabriziopandini]

/close
in favor of #7010

[k8s-ci-robot]

@fabriziopandini: Closing this issue.

In response to this:

/close
in favor of #7010

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.