Kubernetes - Kubernetes is an open source orchestration system for Docker containers
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Google Kubernetes Engine - Google Kubernetes Engine is a powerful cluster manager and orchestration system for running your Docker containers. Set up a cluster in minutes.
CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.
SaltStack - SaltStack event-driven automation delivers security, cloud and configuration management for a software-defined world and enterprise complexity and scale.
Travis CI - Focus on writing code. Let Travis CI take care of running your tests and deploying your apps.