[UserIsUnused]

There are declarative general purpose programing languages.

That data you are talking about does need to be debugged, like Helm charts and pipeline definitions. Sure data is better, but config is code, not data.

[solatic]

Generators need to be debugged, not data. It's very easy to test a generator - a few unit tests checking whether, for a given input, the generator produced the expected output, and you're set. Data sometimes needs to be cleaned, but there's no such thing as a bug in data.

Whether the generated declarative output produces the expected behavior on the part of the tool interpreting the declarative output is part of the tool's contract, not the generator or the declarative output. If you need to check the tool's behavior then either a) you wrote the tool or b) you're writing an acceptance test for the tool, which is an entirely different endeavor.

[UserIsUnused]

Things like pipeline definitions and helm charts are generators.

[grawprog]

>but config is code, not data.

Config is both. Config variables are data. The code that accesses and uses those variables is...well...code. they should be kept separate. Like any other code and data. Config isn't a separate special entity, it's just another part of the program. The data part should be represented as such and the code part should be code. Trying to combine them and create a special 'config' language is mistake.