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chrony (13) Versions 1.0.0

Installs/Configures chrony, an application used to maintain the accuracy of the system clock (similar to NTPd).

cookbook 'chrony', '= 1.0.0', :supermarket
cookbook 'chrony', '= 1.0.0'
knife supermarket install chrony
knife supermarket download chrony
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chrony cookbook

Cookbook Version
CI State

Configures the time synchronization application chrony as a client or master timeserver, maintaining the accuracy of the system clock (similar to NTP). Isolated networks are supported as well.


This cookbook is maintained by the Sous Chefs. The Sous Chefs are a community of Chef cookbook maintainers working together to maintain important cookbooks. If you’d like to know more please visit or come chat with us on the Chef Community Slack in #sous-chefs.



  • Debian / Ubuntu
  • CentOS / Redhat


  • Chef 13+



Configures the node to use the chrony application to keep the node's clock synced. If there is a node using the chrony::master recipe, the client will attempt to sync with it. If there is not an available master, the attribute list ['chrony'][:servers] is used (defaults are [0-3] If there is a master node, the ['chrony'][:allowed] will be set to allow for syncing with the master.


The default recipe passes through to the client recipe.


The node will use the chrony application to provide time to nodes using the chrony::client recipe. The master sets its own time against the attribute list ['chrony'][:servers] (defaults are [0-3] Access to this master is restricted by the ['chrony'][:allowed] attribute set in the recipe (default is to the x.y.* subnet).


Nodes using the chrony::client recipe will attempt to sync time with nodes using the chrony::master recipe. If there are no chrony::master nodes found, the contents of the attribute list ['chrony'][:servers] are used (defaults are [0-3]

The current configurations are supported:
1) Clients with direct NTP server access
2) A master with direct NTP server access with clients pointing to it


This project exists thanks to all the people who contribute.


Thank you to all our backers!


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Dependent cookbooks

This cookbook has no specified dependencies.

Contingent cookbooks

There are no cookbooks that are contingent upon this one.


This file is used to list changes made in each version of the chrony cookbook.

1.0.0 - 2021-01-21

  • Sous Chefs Adoption
  • Standardize helpers library
  • Improve testing
  • Remove unused attributes
  • Create attribute to handle custom extra configuration settings

0.3.1 (2020-12-23)

  • Minor updates to the kitchen files and metadata.rb source fix - @tas50
  • Use platform_family so we also support RHEL-like platforms like Oracle Linux - @gsreynolds
  • Cookstyle Bot Auto Corrections with Cookstyle 6.18.8 - @cookstyle

0.3.0 (2020-02-10

  • Added full support for CentOS/Redhat 7 & 8
  • Expanded test coverage for Ubuntu, CentOS, and Redhat platforms
  • Segregated templates used to configure chrony.conf for client and master servers

0.2.0 (2018-09-25)

  • This cookbook has been brought back to life now under the chef-cookbooks org. Ideally, we'll rewrite this, but this version is already improved over the previous so we'll be releasing it now. Since this is not 1.0 expect heavy breaking changes in the future.
  • Resolved all Foodcritic and Cookstyle warnings
  • Added very basic ChefSpec
  • Add Travis config + badge
  • Added contributing and testing documentation
  • Moved templates out of the default directory (chef 11-ism)
  • Added name metadata
  • Added chef_version metadata
  • Added source_url and issues_url metadata
  • Added a kitchen config
  • Added a delivery local mode config
  • Updated copyrights to be Chef Software not Opscode


Initial release.

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