Deis vs Envoyer: 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, Envoyer is detailed as "A brand new way to deploy PHP and Laravel applications with zero downtime". Envoyer deploys your PHP applications with zero downtime. Just push your code, and let Envoyer deliver your application to one or many servers without interrupting a single customer. In this series, we'll discuss each feature of Envoyer, demonstrating how to use them with a sample project.

Deis and Envoyer can be categorized as "Platform as a Service" tools.

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, Envoyer provides the following key features:

• GitHub / Bitbucket Integration
• Seamless Deployment Rollbacks
• Deploy To Multiple Servers

Deis is an open source tool with 6.12K GitHub stars and 863 GitHub forks. Here's a link to Deis's open source repository on GitHub.