Added checks for missing fields in Golden ConfigMap

[diverdane]

Desired Outcome

The Namespace Prep Helm chart fails and emits a clear error message whenever expected fields are missing in the Golden ConfigMap.

Implemented Changes

Added calls to required when fields are read from the Golden ConfigMap.

Connected Issue/Story

N/A

Definition of Done

• Helm unittest passes for Namespace Prep Helm chart

Changelog

• The CHANGELOG has been updated, or
• This PR does not include user-facing changes and doesn't require a
  CHANGELOG update

Test coverage

• This PR includes new unit and integration tests to go with the code
  changes, or
• The changes in this PR do not require tests

Documentation

• Docs (e.g. READMEs) were updated in this PR
• A follow-up issue to update official docs has been filed here: insert issue ID
• This PR does not require updating any documentation

Behavior

• This PR changes product behavior and has been reviewed by a PO, or
• These changes are part of a larger initiative that will be reviewed later, or
• No behavior was changed with this PR

Security

• Security architect has reviewed the changes in this PR,
• These changes are part of a larger initiative with a separate security review, or
• There are no security aspects to these changes

[tzheleznyak]

Can you run the jwt automation scripts and insure this checks not making them fail?

[diverdane]

Can you run the jwt automation scripts and insure this checks not making them fail?

Will do. Here's the test run:
https://jenkins.conjur.net/blue/organizations/jenkins/cyberark--conjur-authn-k8s-client/detail/test-with-jwt/1/pipeline

And here are the diffs used to run this test:
https://github.com/cyberark/conjur-authn-k8s-client/compare/test-with-jwt?expand=1

[tzheleznyak]

Can you run the jwt automation scripts and insure this checks not making them fail?

Will do. Here's the test run: https://jenkins.conjur.net/blue/organizations/jenkins/cyberark--conjur-authn-k8s-client/detail/test-with-jwt/1/pipeline

And here are the diffs used to run this test: https://github.com/cyberark/conjur-authn-k8s-client/compare/test-with-jwt?expand=1

The scripts are not yet for jenkins but currently only for local kind cluster i meant running them localy

[diverdane]

The scripts are not yet for jenkins but currently only for local kind cluster i meant running them localy

Ah, thanks for the heads up on that.
I ran the scripts locally with this change, and all 3 JWT integrations passed.

[diverdane]

@tzheleznyak I ran the E2E scripts locally with all 3 JWT integrations with this change, and all 3 integrations worked.
Are you okay with this change?

[szh]

LGTM!