|Initial release||January 15, 2009|
|Stable release||11.10.4 / February 20, 2014|
|Written in||Ruby (client) and Erlang (server)|
|Operating system||GNU/Linux, AT&T Unix, MS Windows, BSD, Mac OS X|
|Type||Configuration management, System administration, Network management, Cloud management, Continuous delivery, DevOps|
Chef is a configuration management tool written in Ruby and Erlang. It uses a pure-Ruby, domain-specific language (DSL) for writing system configuration "recipes". Chef is used to streamline the task of configuring & maintaining a company's servers, and can integrate with cloud-based platforms such as Rackspace and Amazon EC2 to automatically provision and configure new machines.
The user writes "recipes" that describe how Chef manages server applications (such as Apache, MySQL, or Hadoop) and how they are to be configured. These recipes describe a series of resources that should be in a particular state: packages that should be installed, services that should be running, or files that should be written. Chef makes sure each resource is properly configured and corrects any resources that are not in the desired state.
Chef can run in client/server mode, or in a standalone configuration named "chef-solo". In a client/server mode, the Chef client sends various attributes about the node to the Chef server. The server uses Solr to index these attributes and provides an API for clients to query this information. Chef recipes can query these attributes and use the resulting data to help configure the node.
Chef is used by Facebook, HP Public Cloud, Prezi, Ancestry.com, Rackspace, Get Satisfaction, IGN, Marshall University, Socrata, University of Minnesota, Wharton School of the University of Pennsylvania, Bonobos, Splunk, and Cheezburger, among others.
- "Release: Chef Client Patch Release: 11.10.4". GetChef.com. 20 February 2014.
- "Chef", Opscode.
- "Chef & Puppet", Wired, Oct 2011.
- "Puppet vs Chef battle wages", Script rock.
- Lueninghoener, C (April 2011), "Getting Started with Configuration Management" (PDF), ;login: (Usenix) 36 (2), retrieved 2012-11-23
- "Chef 11 Released!". Opscode. 4 February 2013.
- "Facebook uses a seasoned Chef to keep servers simmering". pcadvisor.co.uk. Retrieved 6 January 2014.
- "ChefConf Readout: Chef to Enable the Full Continuous Deployment Pipeline". HPCloud.com. Retrieved 25 June 2012.
- How Chef Enables the DevOps Culture at Prezi - Zsolt Dollenstein on YouTube
- Creating a Culture for Continuous Delivery - John Esser on YouTube
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