Install Docker
https://unix.stackexchange.com/questions/363048/unable-to-locate-package-docker-ce-on-a-64bit-ubuntu
Logs
docker logs
Docker Swarm
docker swarm is only a simple container cluster
has itself's load balancer (round robin)
docker/socket.io
run global service which runs on every node.
Known Issues
Manage docker through code (Docker SDK for Python)
https://docker-py.readthedocs.io/en/stable/
ansible with docker
http://docs.ansible.com/ansible/latest/guide_docker.html
Generate cluster environment with few clicks: Rancher