Preserve Helm Parameters case

[bryopsida]

Component

JKube Kit

Is your enhancement related to a problem? Please describe

As a user I would like to be able to set/override default values of included helm dependencies as defaults in my generated Values.yaml. This can be problematic when that sub chart uses camelCasing. For example when running k8sResource k8sHelm with the gradle plugin, postgres.someValue ends up as postgres.somevalue in the generated Values.yaml file. This is especially problematic because helm best practices suggest camelCasing: https://helm.sh/docs/chart_best_practices/values/#naming-conventions which means most values have this issue.

Describe the solution you'd like

I would like to see the original case provided in Helm.Parameters to be preserved in the generated Values.yaml. To not break anyone who might already have helm parameters with mixed case currently this would be an opt in toggle to preserve case.

Describe alternatives you've considered

#2200 could solve part of the problem as well as long as the case is preserved from the provided Values.yaml file.

Additional context

No response

[rohanKanojia]

@bryopsida : I see you've got a PR related to helm open. Do you plan to work on this as well? Shall I assign it to you?

[bryopsida]

@rohanKanojia yes, I was planning on taking this on as well.

[manusa]

I can't really find a reason as to why we're transforming the parameter names to lower-case.

The only reason I can think of is to make them case-insensitive.

The change was added as part of #116 when the Helm logic was extracted from the Mojo to a separate module in JKube Kit.

Fabric8 Maven Plugin's original code doesn't include any case transformation either:

https://github.com/fabric8io/fabric8-maven-plugin/blob/89af88323fa685d8b298ba4b2cbc415b9b2911f0/plugin/src/main/java/io/fabric8/maven/plugin/mojo/build/HelmMojo.java#L682-L684

In conclusion, I think it's safe to preserve the case-sensitivity and I don't really see the need for adding an additional flag. I'll refactor #2369 accordingly.