- Remove minor version pin for postgres versions (i.e. 12.5 -> 12)
- Update s3 config to use separate versioning and encryption terraform resources
- Use bucket_prefix instead of bucket for bucket naming to avoid name conflicts
Stream: https://youtu.be/KWwKPYuOGBw
This change updates the s3 bucket resource syntax to use the newer
resource types for specifying versioning and encryption configs.
We also enable auto_minor_version_upgrade for the RDS instance and
switch to only asking for major version 12.
This will just use the default/latest RDS PostgreSQL v12 minor
version. Upside, the specific engine_version provided here will take
longer before it becomes invalid. Minor downside, we are saying its
OK for this RDS instance to undergo minor version upgrades, which
while fine for a toy example like this, is often not great in prod.
