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RELEASE_NOTES.md

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Chef Client Release Notes 12.5.0:

  • OSX 10.11 support (support for SIP and service changes)
  • Windows cookbook <= 1.38.1 contains a library file which does not compile with chef-client 12.5.0. This is resolved in version 1.38.2 of the Windows cookbook. Cookbooks depending on the Windows cookbook should update the dependency version to at least 1.38.2 to be compatible with chef-client 12.5.0.

PSCredential support for the dsc_script resource

The dsc_script resource now supports the use of the ps_credential helper method. This method generates a Ruby object which can be described as a Powershell PSCredential object. For example, if you wanted to created a user using DSC, previously you would have had to do something like:

dsc_script 'create-foo-user' do
  code <<-EOH
     $username = "placeholder"
     $password = "#{FooBarBaz1!}" | ConvertTo-SecureString -asPlainText -Force
     $cred = New-Object System.Management.Automation.PSCredential($username, $password)
     User FooUser00
     {
       Ensure = "Present"
       UserName = 'FooUser00'
       Password = $cred
     }
  EOH
  configuration_data_script "path/to/config/data.psd1"
end

This can now be replaced with

dsc_script 'create-foo-user' do
  code <<-EOH
     User FooUser00
     {
       Ensure = "Present"
       UserName = 'FooUser00'
       Password = #{ps_credential("FooBarBaz1!")}
     }
  EOH
  configuration_data_script "path/to/config/data.psd1"
end

New knife rehash for faster command loading

The new knife rehash command speeds up day-to-day knife usage by caching information about installed plugins and available commands. Initial testing has shown substantial improvements in knife startup times for users with a large number of Gems installed and Windows users.

To use this feature, simply run knife rehash and continue using knife. When you install or remove gems that provide knife plugins, run knife rehash again to keep the cache up to date.

Support for /usr/bin/yum-deprecated in the yum provider

In Fedora 22 yum has been deprecated in favor of DNF. Unfortunately, while DNF tries to be backwards compatible with yum, the yum provider in Chef is not compatible with DNF. Until a proper dnf_package resource and associated provider is written and merged into core, 12.5.0 has been patched so that the yum_package resource takes a property named yum_binary which can be set to point at the yum binary to run for all its commands. The yum_binary will also default to yum-deprecated if the /usr/bin/yum-deprecated command is found on the system. This means that Fedora 22 users can run something like this early in their chef-client run:

if File.exist?("/usr/bin/dnf")
  execute "dnf install -y yum" do
    not_if { File.exist?("/usr/bin/yum-deprecated") }
  end
end

After which the yum-deprecated binary will exist, and the yum provider will find it and should operate normally and successfully.