- Use steps at https://docs.ansible.com/ansible/latest/user_guide/intro_dynamic_inventory.html#example-aws-ec2-external-inventory-script
- Ensure EC2 host is accessible over SSH via a Security Group
As a development aid, see the AWS documentation at https://docs.ansible.com/ansible/2.5/scenario_guides/guide_aws.html
See https://docs.google.com/document/d/12w0lXAeLiGzbV37jB2qKJ0b55Vmzyr9MvJzcHh5cC6E