Fail fast when request to /.well-known/oauth-authorization-server fails

[php-coder]

Improves error reporting. See here for more details: #17574 (comment)

Prior this change hack/test-cmd.sh could fail with the error:

error: Missing configuration - verify you have provided the correct host and port and that the server is currently running.

Now, the message has more details:

error: couldn't get https://10.34.129.148:28443/.well-known/oauth-authorization-server: unexpected status 403 were returned - verify you have provided the correct host and port and that the server is currently running.

PTAL @enj @simo5

[enj]

/lgtm
/retest

[php-coder]

The failing test confirms a new behavior:

=== BEGIN TEST CASE ===
hack/test-cmd.sh:107: executing 'oc login --server='https://172.17.0.2:28443' --certificate-authority='/tmp/openshift/test-cmd/openshift.local.config/master/ca.crt' -u test-user -p anything' expecting success
FAILURE after 0.203s: hack/test-cmd.sh:107: executing 'oc login --server='https://172.17.0.2:28443' --certificate-authority='/tmp/openshift/test-cmd/openshift.local.config/master/ca.crt' -u test-user -p anything' expecting success: the command returned the wrong error code
There was no output from the command.
Standard error from the command:
error: couldn't get https://172.17.0.2:28443/.well-known/oauth-authorization-server: unexpected response status 403 - verify you have provided the correct host and port and that the server is currently running.
error: couldn't get https://172.17.0.2:28443/.well-known/oauth-authorization-server: unexpected response status 403
=== END TEST CASE ===

[openshift-bot]

/retest

Please review the full test history for this PR and help us cut down flakes.

[php-coder]

Only gofmt was run.

[enj]

/lgtm

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: enj, php-coder

The full list of commands accepted by this bot can be found here.

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• pkg/cmd/OWNERS [enj]

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[enj]

/retest

[php-coder]

Test flake #17631
/test extended_conformance_gce

[openshift-merge-robot]

Automatic merge from submit-queue (batch tested with PRs 17217, 17597, 17606).