Provide useful user feedback with respect to Kubernetes cluster connections.
Description
When registering an existing Kubernetes cluster within a Project CI/CD context there is almost no useful feedback as to whether or not the credentials entered are correct or functional. Further to this, there are no logs or output of any kind that would indicate to the user that the information they entered actually results in a working connection to the k8s cluster. If they did not, there is little recourse or guidance on what is incorrect, or what went wrong. It feels unfinished and is quite unpleasant to use when it doesn't just work.
Proposal
Offer a "Test Connection" button to ensure that the credentials entered actually result in a connection between Gitlab and Kubernetes. And provide some sort of meaningful feedback in this regard, something better then just an detail-free error message indicating that Tiller cannot be installed.
Or provide some sort of check as to whether the connection is valid, and if not, provide some sort of useful error message back to the user. All I have been able to achieve is a rather spurious and unhelpful Tiller error. At this point I have no idea how to proceed, and the documentation offers zero guidance. It seems to assume happy path only.
Thanks.