this will allow you to test against installed RPM like so:
# export CLI="/usr/bin/composer-cli"
# make test_images
If you already have lorax-composer running then you can directly
execute test scripts:
# ./tests/cli/test_build_and_deploy_aws.sh
Related: rhbz#1678937
Related: rhbz#1653934
note: for now use Fedora 28 for the Docker container until
CentOS 8 is released or we figure out how to use subscriptions
for official RHEL 8 images.
