Yeah, agreed. Unfortunately when you inevitably make changes to your CF config, `terraform plan` doesn't help because it's likely you changed something inside

Yeah, agreed. Unfortunately when you inevitably make changes to your CF config, `terraform plan` doesn't help because it's likely you changed something inside the `template_body` and Terraform just knows the string has changed and doesn't tell you what part of the config changed. Parameterising as much as you can helps.