Improve error message of dsc/chectl if OpenShift version cannot be determined

[imphil]

Is your enhancement related to a problem? Please describe

I'm trying to get started with Eclipse Che and am using the chectl/dsc as follows:

$  dsc server:deploy --platform openshift
TypeError: Cannot read properties of undefined (reading 'match')
    at /home/philipp/swinstall/dsc/lib/context.js:261:60
    at Generator.next (<anonymous>)
    at fulfilled (/home/philipp/swinstall/dsc/node_modules/tslib/tslib.js:166:62)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)

The error message in itself is not telling much, and it would be nice if it would be more descriptive.

Root cause

• The code calls oc version -o json and looks for a key openshiftVersion, which doesn't exist.

   const { stdout } = yield execa('oc', ['version', '-o', 'json'], { timeout: 60000 });
            const versionOutput = JSON.parse(stdout);
            const version = versionOutput.openshiftVersion.match(/^\d.\d+/);

• The openshiftVersion key does not exist because my user does not have permissions to the necessary endpoint. That's only visible if I increase the log level, oc returns successfully otherwise and simply does not output the key.

   $ oc version -o json --loglevel=8
   I0714 14:40:14.835129 1101396 round_trippers.go:463] GET https://MY_CLUSTER/apis/config.openshift.io/v1/clusterversions/version
   I0714 14:40:14.835144 1101396 round_trippers.go:469] Request Headers:
   ...
   I0714 14:40:14.930986 1101396 request.go:1212] Response Body: {"kind":"Status","apiVersion":"v1","metadata":{},"status":"Failure","message":"clusterversions.config.openshift.io \"version\" is forbidden: User \"MY_USER\" cannot get resource \"clusterversions\" in API group \"config.openshift.io\" at the cluster scope","reason":"Forbidden","details":{"name":"version","group":"config.openshift.io","kind":"clusterversions"},"code":403}
   I0714 14:40:14.931196 1101396 version.go:141] OpenShift Version not found (must be logged in to cluster as admin): clusterversions.config.openshift.io "version" is forbidden: User "MY_USER" cannot get resource "clusterversions" in API group "config.openshift.io" at the cluster scope
   {
     "clientVersion": {
       "major": "",
       "minor": "",
       "gitVersion": "4.16.0-202406200537.p0.ga245041.assembly.stream.el9-a245041",
       "gitCommit": "a2450418f7b12a71e8f3562a4e9aa8a976bbf85b",
       "gitTreeState": "clean",
       "buildDate": "2024-06-20T12:26:07Z",
       "goVersion": "go1.21.9 (Red Hat 1.21.9-1.module+el8.10.0+21671+b35c3b78) X:strictfipsruntime",
       "compiler": "gc",
       "platform": "linux/amd64"
     },
     "kustomizeVersion": "v5.0.4-0.20230601165947-6ce0bf390ce3",
     "serverVersion": {
       "major": "1",
       "minor": "25",
       "gitVersion": "v1.25.16+054f0ba",
       "gitCommit": "f5b7c3e8faedd51935d77828a5fc72c7540236f4",
       "gitTreeState": "clean",
       "buildDate": "2024-04-15T13:49:12Z",
       "goVersion": "go1.19.13 X:strictfipsruntime",
       "compiler": "gc",
       "platform": "linux/amd64"
     },
     "releaseClientVersion": "4.16.1"
   }
  

Describe the solution you'd like

Output something like "Unable to determine OpenShift version. Check with oc version -o json --loglevel=8 if you have the necessary permissions."

Describe alternatives you've considered

No response

Additional context

No response