Taylor

In [#14](https://github.com/azavea/terraform-aws-postgresql-rds/pull/14), we created an empty default security group in order to give users the flexibility to define their own firewall rules. However, it would be useful to have some...

Upgrade to tf 0.12

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# Overview This PR's on purpose 😂. I ran `terraform 0.12upgrade` against this module, and these were the results. I understand that this is a breaking change that'll require behind-the-scenes...

Let users name the Container Service and ECS Service Roles themselves, instead of being opinionated about naming conventions. Useful for situations where they want to deploy two different ECS clusters...

Replace the Vagrant-based test setup with [`molecule`](https://molecule.readthedocs.io), a testing utility used with our other Ansible roles. Molecule allows us to take a more test driven approach to developing Ansible roles....