Fix inclusion of Helm values
When referencing the desired Helm values file like this:
HELM_VALUES_FILE: ${HELM_VALUES_FILE_GO_CERN}
Gitlab CI substitutes not just the variable, but also it's content. So HELM_VALUES_FILE
would become env: bar: baz ...
(instead of the path to the file).
Apparently, in the next version of Gitlab this behavior can be disabled (but we are still a bit away from rolling that out): https://docs.gitlab.com/ee/ci/variables/#prevent-cicd-variable-expansion
So instead we can add another level of indirection - hooray! /s
Edited by Jack Henschel