Hi, I'm the founder of Docker. Sorry that you had an issue on the website. I warned the team of your comment, feel free to email me directly at s@docker.com and

Hi, I'm the founder of Docker. Sorry that you had an issue on the website. I warned the team of your comment, feel free to email me directly at s@docker.com and I'll put you in touch. Note that the price you mention is yearly. A node is anything you can install Docker Engine on. Typically it's a physical or virtual server. All nodes are combined into a swarm, which you can manage from the control plane.