How Do I Use This
docker run --rm -it -e AWS_ACCESS_KEY_ID=thisisyourkey -e AWS_SECRET_ACCESS_KEY=thisisyoursecret -v ~/wherever_you_source_it/ec2.ini:/etc/ansible/ec2.ini
What Is ec2.ini?
This is the configuration file to be read by the python script masquerading as /etc/ansible/hosts. See the docs for more on Ansible and EC2 and dynamic inventory. See an example in the repo.