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Ansible is a radically simple IT automation engine that automates cloud provisioning, configuration management, application deployment, intra-service orchestration, and many other IT needs.

Puppet Data Center Automation Solution helps you save time, gain visibility into your server environment, and ensure consistency across your IT infrastructure.

Rudder is an easy to use, web-driven, role-based solution for IT Infrastructure Automation and Compliance. With a focus on continuously checking configurations and centralising real-time status data, Rudder can show a high-level summary (“ISO 27001 rules are at 100%!”) and break down noncompliance issues to a deep technical level (“Host prod-web-03: SSH server configuration allows root logins”).

Foreman is an open source project that helps system administrators manage servers throughout their lifecycle, from provisioning and configuration to orchestration and monitoring. Using Puppet or Chef and Foreman's smart proxy architecture, you can easily automate repetitive tasks, quickly deploy applications, and proactively manage change, both on-premise with VMs and bare-metal or in the cloud.

Configuration files describe to Terraform the components needed to run a single application or your entire datacenter. Terraform generates an execution plan describing what it will do to reach the desired state, and then executes it to build the described infrastructure. As the configuration changes, Terraform is able to determine what changed and create incremental execution plans which can be applied.

munki is a set of tools that, used together with a webserver-based repository of packages and package metadata, can be used by OS X administrators to manage software installs (and in many cases removals) on OS X client machines.

RunDeck is an open source automation service with a web console, command line tools and a WebAPI. It lets you easily run automation tasks across a set of nodes.

Bcfg2 helps system administrators produce a consistent, reproducible, and verifiable description of their environment, and offers visualization and reporting tools to aid in day-to-day administrative tasks. It is the fifth generation of configuration management tools developed in the Mathematics and Computer Science Division of Argonne National Laboratory.

cdist is an alternative to other configuration management systems like cfengine, bcfg2, chef and puppet. But cdist ticks differently.

Ensure complianceDefine the desired state and configuration of your IT infrastructure, and CFEngine will automatically ensure that it complies.

Distelli makes it fast and easy for developers to build, test deploy code to any server with the push of a button. Our platform empowers developers and their teams to spend less time building and maintaining complex deployment tools and homegrown scripts so they can focus their valuable time and effort on creating the software that powers their business.