Atlantis vs Deis: What are the differences?
What is Atlantis? Open Source PaaS Built on Docker, by Ooyala. Atlantis is an Open Source PaaS for HTTP applications built on Docker and written in Go. It makes it easy to build and deploy applications in a safe, repeatable fashion, and flexibly route requests to the appropriate containers.
What is Deis? Open Source PaaS that builds upon Docker and CoreOS to provide a lightweight PaaS with a Heroku-inspired workflow. Deis can deploy any application or service that can run inside a Docker container. In order to be scaled horizontally, applications must follow Heroku's 12-factor methodology and store state in external backing services.
Atlantis and Deis can be categorized as "Platform as a Service" tools.
Atlantis and Deis are both open source tools. It seems that Deis with 6.12K GitHub stars and 863 forks on GitHub has more adoption than Atlantis with 381 GitHub stars and 33 GitHub forks.