Running the Terraform on an Ubuntu 16.04 system without the AWS CLI already installed failed with the attached error in the image. There is an error when the AWS CLI install is executed and never completes.
A simple workaround is to install the AWS CLI manually and either startover or rerun the Terraform. The AWS CLI should either be a pre-req with a hard fail on not existing (before any other resource creation) or this should be handled more gracefully in the local-exec provisioner.
