Set DSC LocalConfigurationManager with Chef

lcm.rb

# Apply the Local Configuration Manager for DSC.
# DSC by default runs a consistancy check once every 15 minutes.
# We disable this because it causes collisions with chef-client runs.
powershell_script 'apply_lcm' do
  code <<-EOH
  configuration LCM
  {
    LocalConfigurationManager
    {
      ConfigurationMode = "ApplyOnly"
    }
  }
  LCM -OutputPath #{Chef::Config['file_cache_path']}
  Set-DscLocalConfigurationManager -Path #{Chef::Config['file_cache_path']}
  EOH
  not_if '(Get-DscLocalConfigurationManager).ConfigurationMode -eq "ApplyOnly"'
end