[stable/sonarqube] allow overriding app fullname

[usmonster]

Is this a new chart

No.

What this PR does / why we need it:

Allows to override the fullname used in various places. Today, a helper template function determines the format of the name, and it can't be overridden. This is inconvenient and unwanted in many cases (e.g. when tooling maps the app name to a hostname—I want sonarqube.example.org, but today I can only get sonarqube-sonarqube.example.org). It's generally better to allow the fullname to be explicitly overridden if so desired.

Special notes for your reviewer:

This has a similar, but subtly different effect as adding the nameOverride value. I hesitated to instead implement behavior that would reuse name as the fullname (e.g. introduce a useNameAsFullname boolean value), but I decided on an approach that allows these values to be overridden independently.

Also, since the nameOverride is already undocumented (I assume intentionally?), I likewise opted to leave this new value undocumented.

Checklist

• DCO signed
• Chart Version bumped
• Variables are documented in the README.md
• Title of the PR starts with chart name (e.g. [stable/mychartname])

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: usmonster
To complete the pull request process, please assign rjkernick
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[k8s-ci-robot]

Hi @usmonster. Thanks for your PR.

I'm waiting for a helm member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[usmonster]

/assign @rjkernick

[usmonster]

I guess I could get rid of the printf here...

[rjkernick]

/ok-to-test

[usmonster]

Ping @rjkernick for lgtm/approval 🙏

[davidkarlsen]

This chart has been deprecated and moved: #21007