[bug] gitlab script tests failing regularly in umbrella tests due to inability to access kubeapi from within the test container

Overview

Those gitlab script tests I wrote a few months back for #233 (closed) are failing regularly at the umbrella chart test level due to an inability to access the kubernetes API in the kubectl exec toolbox rails runner make me a new gitlab PAT phase of scripts/test.sh.

Potential fixes

• Rewrite test.sh to only run curl commands that can work without a PAT (i.e. read-only tests that don't require login)
• Generate a viable KUBECONFIG inside the test.sh script (prior art by @andrewshoell below)
• Generate the test PAT before the gitlab-script-test container executes scripts/test.sh. Could be done in an InitContainer within the gitlab-script-test pod or possibly as a post-install pre-test Job hook that creates the needed PAT and then stores it somewhere the gluon scripts test container can see it (k8s Secret or a short-lived volume mount)

References

• @andrewshoell's bbctl KUBECONFIG file generation inside a helm template
• Failing umbrella MR pipelines for gitlab 8.3.6-bb.0
• Pod logs from failure: gitlab-script-test.txt