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Can someone explain how this is different from Docker? As someone who hasn't used either, I'd really appreciate an explanation of the nuanced differences/how th

• peterwaller 13y ago
  docker is the brains, by talking to the operating system it makes easy to use OS containers (which are analogous to VMs but much cheaper since they are one process rather than a whole "machine"). Deis is for orchestration. He's the conductor of the orchestra. It's the next level up, for managing how multiple containers get set up and talk to one another.
• gabrtv 13y ago
  peterwaller got it right, but let me try and give a little more color. Deis is provides a private Heroku-like platform powered by Docker & Chef. Once Deis is up and running, developers deploy with `git push deis master` and they automatically get a configurable number of Docker "runtime" containers spread across multiple VM hosts, a set of Nginx proxies that route traffic to the Docker containers, resulting in a fully functional distributed application. How does this work? With Deis the ops folks initialize a "formation" that includes multiple VMs/instances for a) hosting Docker containers and b) proxying traffic into those containers. When a developer creates a new application, pushes a new build, sets an environment variable, etc.. Deis automatically builds the Docker image, distributes it, executes it and reconfigures Nginx proxies to route traffic to it. Chef is used to store platform state and orchestrate changes across the formation.