wercker

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CircleCI

Heroku is a platform as a service (PaaS) built especially for applications developers. When Heroku first launched in 2007 it was a platform dedicated to deploy and host Ruby applications. Today the offering has broadened and allows developers to launch applications for most languages, frameworks and technologies in a matter of minutes with the help of Heroku Buildpacks. There are currently over 5,400 Heroku Buildpacks in the Heroku Elements Marketplace, that can be used by developers to speed up deployment and saftley host their applications online.

Jenkins is a free and open source DevOps tool used for ticket systems and CI/CD infrastructure. Jenkins provides hundreds of plugins to support building, deploying and automating any software project. The tool is a self-contained Java-based program that is ready to run out-of-the-box, with packages for Windows, Mac OS X and Unix-like operating systems. Anyone is free to contribute to Jenkins, and the software is released under the MIT license.

Terraform is an open-source infrastructure as code software tool created by HashiCorp. It allows infrastructure to be expressed as code in a simple, human readable language called HCL (HashiCorp Configuration Language). The Terraform CLI automatically reads configuration files and provides an execution plan of changes, which can be reviewed for safety and then applied and provisioned.