[aramalipoor]

There were a few reasons why I couldn't use IaC:

1) Using conditionals to achieve this usually makes terraform unmanageable specially if your terraform is complex.

2) Sometimes you'd need to do more complex steps to save some money, for example in case of ElastiCache you'd need to snapshot/delete/create.

3) Using terraform in a Lambda to schedule this was not straightforward (in my current company) so I gave up making it work :D