Support for Amazon Linux 2 AMI

[JakkuSakura]

When I ran this tool, I ran into multiple errors. In the end, I have

failed: [m1.train] (item=['docker-ce-17.12.1.ce', 'kubelet-1.9.7', 'kubeadm-1.9.7', 'kubectl-1.9.7']) => {"ansible_loop_var": "item", "changed": false, "item": ["docker-ce-17.12.1.ce", "kubelet-1.9.7", "kubeadm-1.9.7", "kubectl-1.9.7"], "msg": "No package matching 'docker-ce-17.12.1.ce' found available, installed or updated", "rc": 126, "results": ["No package matching 'docker-ce-17.12.1.ce' found available, installed or updated"]}
failed: [s1.train] (item=['docker-ce-17.12.1.ce', 'kubelet-1.9.7', 'kubeadm-1.9.7', 'kubectl-1.9.7']) => {"ansible_loop_var": "item", "changed": false, "item": ["docker-ce-17.12.1.ce", "kubelet-1.9.7", "kubeadm-1.9.7", "kubectl-1.9.7"], "msg": "No package matching 'docker-ce-17.12.1.ce' found available, installed or updated", "rc": 126, "results": ["No package matching 'docker-ce-17.12.1.ce' found available, installed or updated"]}

But I have docker installed and there's no docker-ce avaliable on Amazon Linux 2 AMI