Hi all!
Thank you so much for all of your helpful feedback ( @maxb , @johnkeates, @Thibault-Brocheton , @gothrek22 , @KyleKotowick , @aaronsteers2 , @wenslayer , and @dmrzzz ) – we have some exciting news. We just posted an update to this research request here: Update: Ability to raise an error.
In the post, we discuss a new feature for defining preconditions and postconditions, now available in terraform_1.2.0-alpha-20220328. This feature was largely designed with all your use-cases and workarounds in mind, as well as requests for expanding our current variable validation use-cases. Thank you again for all of your help informing this feature – we are really thankful for your input, and hope this feature solves a core problem.
If you’d like to try the feature out, we’d love your feedback! Some of you I’ve met on calls, and I’d be happy to do so again if you’d like to discuss further.