It would be nice to print in logs when substitutions generate invalid JSON #7
Description
When the are missing fields in platform.yml or erronous ones, generated JSON config files can become invalid, it would be nice to print it in the logs instead of searching for errors in the containers that use them.
Additionally, in case of mistakes such as infinite recursion errors Maximum call stack size exceeded, it would be nice to fail better than printing an error and leading the follower to fail constantly.