Deis vs Kontena: What are the differences?

Developers describe Deis as "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. On the other hand, Kontena is detailed as "Docker Container Orchestration Platform Written in Ruby". Kontena is an open source container orchestration tool that makes it easy to deploy and manage containerized applications on your own servers.

Deis and Kontena belong to "Platform as a Service" category of the tech stack.

Some of the features offered by Deis are:

• Deis can deploy any language or framework using a Dockerfile
• If you don't have a Dockerfile, Deis includes Heroku buildpacks for Ruby, Python, Node.js, Java, Clojure, Scala, Play, PHP, Perl, Dart and Go.
• Deis can be deployed on any system that supports CoreOS including your workstation, as well as most public clouds, private clouds and bare metal.

On the other hand, Kontena provides the following key features:

• Automatic Node Discovery
• Mixed Infrastructure Support
• Service Abstraction

Deis and Kontena are both open source tools. It seems that Deis with 6.12K GitHub stars and 863 forks on GitHub has more adoption than Kontena with 1.44K GitHub stars and 117 GitHub forks.