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resolver (33) Versions 4.2.0

Configures /etc/resolv.conf via attributes

cookbook 'resolver', '= 4.2.0', :supermarket
cookbook 'resolver', '= 4.2.0'
knife supermarket install resolver
knife supermarket download resolver
Quality 50%

resolver Cookbook

Cookbook Version
CI State

Configures /etc/resolv.conf, unless the nameservers attribute is empty. Search will be excluded if empty.


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.



  • AIX
  • Debian/Ubuntu
  • RHEL/CentOS/Scientific/Amazon/Oracle
  • Fedora
  • FreeBSD/OpenBSD
  • macOS
  • Solaris
  • openSUSE / SUSE Enterprise


  • Chef 15.3+


  • [resolver_config](documentation/
  • [resolver_systemd_resolved_config](documentation/


It is recommended to create a project or organization specific wrapper cookbook and add the desired custom resources to the run list of a node.

Example of configuring a node with nameservers, a search list and a local domain.

resolver_config '/etc/resolv.conf' do
  nameservers ['', '']
  domain ''
  search ['', '']
    'timeout' => 2

The resulting /etc/resolv.conf will look like:

# Generated by Chef Infra for dokken
# Do NOT modify this file by hand, changes will be overwritten.

options timeout:2


This project exists thanks to all the people who contribute.


Thank you to all our backers!


Support this project by becoming a sponsor. Your logo will show up here with a link to your website.

resolver Cookbook CHANGELOG

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

4.2.0 - 2024-01-29

  • Added support for sortlist option in resolv.conf

4.1.6 - 2023-12-21

4.1.5 - 2023-10-03

4.1.4 - 2023-09-29

4.1.3 - 2023-05-17

4.1.2 - 2023-05-04

  • chore(deps): update actions/checkout action to v3

4.1.1 - 2023-05-03

  • Update standardfiles

4.1.0 - 2022-08-08

  • Remove delivery and move to calling RSpec directly via a reusable workflow
  • Add the atomic_update property
  • Use MacOS 10.15 when using Vagrant testing
  • Update Linux platforms for testing

4.0.3 - 2022-02-08

  • Remove delivery folder

4.0.2 - 2021-08-30

  • Standardise files with files in sous-chefs/repo-management

4.0.1 - 2021-06-01

  • Standardise files with files in sous-chefs/repo-management

4.0.0 - 2021-05-26

  • Switch to unified_mode
  • Update chef_version to only support Chef 15.3 or later

3.0.4 - 2021-03-03

  • Fixed typo in the CacheFromLocalhost parameter in the systemd-resolved template

3.0.3 - 2021-02-25

  • Fix blog link for wrapper cookbooks

3.0.2 - 2021-02-25

  • Merge resolv.conf options & remove extra colons

3.0.1 - 2021-02-20

  • Update Chef -> Chef Infra

3.0.0 - 2021-02-18

  • Port recipes and attributes to resources
  • Add support for overriding system configuration methods to resolver_config
  • Add systemd-resolved support

2.2.0 - 2021-02-10

  • Sous Chefs Adoption
  • Add InSpec Tests
  • Remove Deprecated Platforms, Centos 6, Ubuntu 16.04, opensuse-42, fedora-29

2.1.0 (2018-07-18)

  • Test with Local Delivery instead of Rake
  • Update Apache license string in metadata
  • the search stanza should be an array rather than a single element. resolv.conf search allows up to six search domains to be defined. Have updated the recipes with some rules (no more than 6 domains or 256 chars), change the ['resolver']['search'] into an array and changed teh template unless block to search for an empty array instead
  • add aix support

2.0.1 (2017-02-24)

  • Fix compatibility with old chef 12 clients
  • Remove old recipe from the metadata
  • Call out SUSE support in the readme and metadata

2.0.0 (2016-09-07)

  • add support for 'domain' resolv.conf key
  • Switch to root group to support AIX/OS X/FreeBSD
  • Removed the from_server_role recipe. This should be done with a wrapper cookbook instead
  • Add testing with Travis CI and use kitchen-dokken for integration testing
  • Add basic Chefspec testing
  • Add integration testing with Test Kitchen
  • Add Berksfile
  • Update contributing, testing and maintainers docs
  • Improve the readme with chef/platform Requirements
  • Add a Rakefile for simplified testing
  • Use strings for file modes to preserve the leading 0s
  • Add source_url, issue_url and chef_version to the metadata
  • Remove attributes from the metadata since they weren't up to date

v1.3.0 (2015-10-16)

  • Add rubocop file and resolve all rubocop warnings
  • Update the contributing doc to match the new process
  • Use strings for file modes to preserve the leading 0s
  • Add support the domain resolv.conf config option
  • Add a gitignore and chefignore file
  • Added a header to the resolv.conf file stating that chef edited the file
  • Use the Ohai 'root_group' attribute for the config file to support non-Linux *nix platforms. This raises the minimum required version of Chef to 11.14.0 with Ohai 7.2.0.

v1.2.0 (2014-10-16)

  • [#11] Improve safety and sanity of cookbook
  • [#12] README update
  • [#14] Exclude search in template if attribute is empty


  • [COOK-3375] - Add Solaris support



  • [COOK-2977]: resolver cookbook has foodcritic failures


  • [COOK-1242] - collect nameservers using a server role, adds from_server_role recipe


  • 'node' went missing in the template.


  • [COOK-1089] - accept resolver options via attributes
  • [COOK-1109] - return from resolver recipe if no nameserver attribute is set so resolv.conf doesn't get broken during the run
  • [COOK-1150] - drop the empty element from the nameserver attribute array

Collaborator Number Metric

4.2.0 passed this metric

Contributing File Metric

4.2.0 failed this metric

Failure: To pass this metric, your cookbook metadata must include a source url, the source url must be in the form of, and your repo must contain a file

Cookstyle Metric

4.2.0 passed this metric

No Binaries Metric

4.2.0 passed this metric

Testing File Metric

4.2.0 failed this metric

Failure: To pass this metric, your cookbook metadata must include a source url, the source url must be in the form of, and your repo must contain a file

Version Tag Metric

4.2.0 failed this metric

Failure: To pass this metric, your cookbook metadata must include a source url, the source url must be in the form of, and your repo must include a tag that matches this cookbook version number