Chef

Configuration management tool which uses a pure-Ruby, domain-specific language (DSL) for writing system configuration recipes. Supports Linux, UNIX, Windows, and AIX as first-class citizens for management.

     

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Fog

The Ruby Cloud API library. Provides a Ruby API for interacting and managing many cloud providers, such as spinning up new instances, terminating old ones, attaching storage, etc. Currently supports more than 20 providers, including EC2, Rackspace, Brightbox, etc.

     

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Orc

A model driven orchestration tool for deployment of application clusters

     

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Pallet

A tool to provision and maintain servers across various cloud platforms as well as virtual machine platforms, without any dependencies. Provides cloud and operating system independence.

     

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Puppet

Puppet is a tool designed to manage the configuration of Unix-like and Microsoft Windows systems declaratively.

     

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Rex

A agent-less server orchestration tool built on Perl

     

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