I used to be obsessed with DRY. After having written tens of thousands of terraform lines in the last few years across a multitude of platforms and use cases, I say everything in moderation.

Going DRY is a decision you pay for in complexity, it's the typical programming problem of genericity. Sometimes it absolutely makes sense and you're a mad man if you skip it, but in isolated cases making things DRY just for the sake of it is just as nuts as not doing it when required.

It's a fine line to walk and it requires hands-on experience to know when to employ DRY and when to repeat yourself.