Install docker via binary file
Any pre-requisites that may not be covered by Ansible itself or the role should be mentioned here. For instance, if the role uses the EC2 module, it may be a good idea to mention in this section that the boto package is required.
A description of the settable variables for this role should go here, including any variables that are in defaults/main.yml, vars/main.yml.
Example:
docker_storage_driver: "overlay2"
docker_version: "17.03.2"
docker_compose_version: "1.22.0"
BSD