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stunnel (25) Versions 5.0.6

Provides resources to help install and configure stunnel

cookbook 'stunnel', '= 5.0.6', :supermarket
cookbook 'stunnel', '= 5.0.6'
knife supermarket install stunnel
knife supermarket download stunnel
Quality 50%


Cookbook Version
Build Status

Chef cookbook to install and configure stunnel


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.


  • Chef 13

Platform Support

  • Ubuntu 14.04+
  • CentOS 6.9+


An stunnel_connection resource is provided for defining stunnel connections. As a client:

include_recipe 'stunnel'

stunnel_connection 'random_service' do
  connect "#{rnd_srv_node['ipaddress']}:#{rnd_srv_node['random_service']['port']}"
  accept node['random_service']['local_accept_port']
  notifies :restart, 'service[stunnel]'

As a server:

include_recipe 'stunnel::server'

stunnel_connection 'random_service' do
  accept node['random_service']['tunnel_port']
  connect node['random_service']['port']
  notifies :restart, 'service[stunnel]'


Lots of configurable attributes:

default['stunnel']['install_method'] = 'package'  # the other valid option is 'source'

default['stunnel']['packages'] = %w(stunnel4)
default['stunnel']['service_name'] = 'stunnel4'

default['stunnel']['ssl_dir'] = '/etc/ssl'
default['stunnel']['server_ssl_req']  = "/C=US/ST=Several/L=Locality/O=Example/OU=Operations/CN=#{node['fqdn']}/emailAddress=root@#{node['fqdn']}"
default['stunnel']['cert_fqdn'] = node['fqdn']

default['stunnel']['use_chroot'] = false
default['stunnel']['chroot_path'] = "/usr/var/lib/stunnel"
default['stunnel']['pidfile'] = "/tmp/"
default['stunnel']['user'] = "root"
default['stunnel']['group'] = "root"
default['stunnel']['ulimit'] = nil # set to a number to add ulimit setting to init script

default['stunnel']['https']['enabled'] = false
default['stunnel']['https']['accept_port'] = "443"
default['stunnel']['https']['connect_port'] = "81"

default['stunnel']['client_mode'] = true

default['stunnel']['fips'] = nil
default['stunnel']['ssl_version'] = 'all'
default['stunnel']['ssl_options'] = 'NO_SSLv2'
default['stunnel']['socket_tunings'] = %w(l:TCP_NODELAY=1 r:TCP_NODELAY=1)
default['stunnel']['compression'] = nil # zlib
default['stunnel']['debug'] = nil # 3
default['stunnel']['output'] = '/var/log/stunnel.log'

# key value pair mapping for default var file
default['stunnel']['default']['enabled'] = 1
default['stunnel']['default']['files'] = '/etc/stunnel/-.conf'
default['stunnel']['default']['options'] = ''

# certificate/key is needed in server mode and optional in client mode
default['stunnel']['certificate_path'] = nil # /etc/pki/stunnel/cert.pem
default['stunnel']['key_path'] = nil # /etc/pki/stunnel/key.pem


FIPS mode can be enabled or disabled with the attribute ['stunnel']['fips']. A value of nil will omit the
"fips" setting from the config file altogether, falling back to the default behavior for that version of stunnel:

  • For 4.x releases FIPS defaults to on if stunnel was compiled with FIPS support.
  • For 5.x releases FIPS defaults to off.

ChefSpec Matchers

A set of ChefSpec matchers is included for unit testing with ChefSpec. These
are automatically available when you make this cookbook a dependency in your
cookbook's metadata. To illustrate:

Recipe code:

stunnel_connection 'haproxy_ssl' do
  accept    '443'
  connect   '8443'

And the matching spec:

it 'should create stunnel_connection haproxy_ssl' do
  expect(chef_run).to create_stunnel_connection('haproxy_ssl').with(
    accept:  '443',
    connect: '8443'

You can also make assertions for notifying other resources:

it 'should notify stunnel to restart on changes to stunnel_connection[haproxy_ssl]' do
  resource = chef_run.stunnel_connection('haproxy_ssl')
  expect(resource).to notify('service[stunnel]').to(:restart)

A matcher for the delete action is also available:

it 'should delete stunnel_connection haproxy_ssl' do
  expect(chef_run).to delete_stunnel_connection('haproxy_ssl')

Testing Locally

To run the tests, make sure you've got the latest ChefDK along with
Vagrant then you can run chef exec kitchen test which will run the
entire test suite on all platforms.


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.

Dependent cookbooks

This cookbook has no specified dependencies.

Contingent cookbooks

et_haproxy Applicable Versions

Change Log

5.0.6 - 2023-09-28

5.0.5 - 2023-09-04

5.0.4 - 2023-09-04

5.0.3 - 2023-05-17

5.0.2 - 2023-05-16

  • Fix metadata
  • Standardise files with repo-management

5.0.1 - 2023-05-03

5.0.0 - 2023-02-27

  • Fix metadata
  • Update standardfiles

4.1.4 - 2023-02-14

4.1.3 - 2023-02-14

  • Remove delivery folder
  • Fix test cookbook by updating nginx dependency & creating an nginx_service resource
  • Add unified_mode true & String type to connect & accept properties for connection resource
  • Split certs into server & client in test cookbook

4.1.2 - 2021-08-31

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

v4.1.0 (2020-02-20)

Full Changelog


  • Add docs for stunnel cert / key path attributes #29 (jhmartin)
  • Adds the protocol option when creating a STunnel server #25 (maraca)
  • Support arbitrary options for tunnels #24 (ssevertson)
  • Resolved: ChefStyle/UnnecessaryPlatformCaseStatement cookstyle warning
  • Migrated to Github Actions for testing


Full Changelog


v3.1.1 (2018-10-23)

Full Changelog

Merged pull requests:

v3.1.0 (2017-11-08)

Full Changelog

Merged pull requests:

v3.0.0 (2017-09-06)

Full Changelog

Implemented enhancements:

Merged pull requests:

v2.3.0 (2016-11-23)

Full Changelog

Merged pull requests:

v2.2.0 (2016-11-15)

Full Changelog

Implemented enhancements:

Closed issues:

  • Latest version 0.2.5 should be version 2.0.5 #16

Merged pull requests:

v2.1.0 (2014-04-11)

Full Changelog

Merged pull requests:

  • Added CAfile, cert, verify (eg. 1, 2, 3) to stunnel_connection resource #18 (portertech)
  • Add override for client_mode option per connection #12 (autrejacoupa)

v2.0.4 (2013-06-19)

Full Changelog

Merged pull requests:

v2.0.2 (2013-03-27)

Full Changelog

v2.0.0 (2012-12-29)

Merged pull requests:

* This Change Log was automatically generated by github_changelog_generator

Collaborator Number Metric

5.0.6 passed this metric

Contributing File Metric

5.0.6 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

5.0.6 passed this metric

No Binaries Metric

5.0.6 passed this metric

Testing File Metric

5.0.6 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

5.0.6 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