* [BOSH](http://docs.cloudfoundry.org/bosh/) - IaaS orchestration platform originally written for deploying and managing Cloud Foundry PaaS, but also useful for general purpose distributed systems.
* [Cloudify](http://www.getcloudify.org/) - Open source TOSCA-based cloud orchestration software platform written in Python and YAML.
* [CloudSlang](http://www.cloudslang.io/) - Flow-based orchestration tool for managing deployed applications, with Docker capabilities.
* [Juju](https://juju.ubuntu.com/) - Cloud orechestration tool which manages services as charms, YAML configuration and deployment script bundles.
* [MCollective](http://puppetlabs.com/mcollective) - Ruby framework to manage server orchestration, developed by Puppet labs.
* [Overcast](http://andrewchilds.github.io/overcast/) - Deploy VMs across different cloud providers, and run commands and scripts across any or all of them in parallel via SSH.