Class: ChefDK::ChefRunner

Inherits:
Object
  • Object
show all
Defined in:
lib/chef-dk/chef_runner.rb

Overview

An adapter to chef’s APIs to kick off a chef-client run.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(cookbook_path, run_list) ⇒ ChefRunner

Returns a new instance of ChefRunner.



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# File 'lib/chef-dk/chef_runner.rb', line 29

def initialize(cookbook_path, run_list)
  @cookbook_path = File.expand_path(cookbook_path)
  @run_list = run_list
  @formatter = nil
  @ohai = nil
end

Instance Attribute Details

#cookbook_path ⇒ Object (readonly)

Returns the value of attribute cookbook_path.



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# File 'lib/chef-dk/chef_runner.rb', line 26

def cookbook_path
  @cookbook_path
end

#run_list ⇒ Object (readonly)

Returns the value of attribute run_list.



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# File 'lib/chef-dk/chef_runner.rb', line 27

def run_list
  @run_list
end

Instance Method Details

#configure ⇒ Object 



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# File 'lib/chef-dk/chef_runner.rb', line 68

def configure
  Chef::Config.solo = true
  Chef::Config.cookbook_path = cookbook_path
  Chef::Config.color = true
  Chef::Config.diff_disabled = true

  # atomic file operations on Windows require Administrator privileges to be able to read the SACL from a file
  # Using file_staging_uses_destdir(true) will get us inherited permissions indirectly on tempfile creation
  Chef::Config.file_atomic_update = false if Chef::Platform.windows?
  Chef::Config.file_staging_uses_destdir = true # Default in Chef 12+
end

#converge ⇒ Object 



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# File 'lib/chef-dk/chef_runner.rb', line 36

def converge
  configure
  Chef::Runner.new(run_context).converge
rescue Chef::Exceptions::CookbookNotFound => e
  message = "Could not find cookbook(s) to satisfy run list #{run_list.inspect} in #{cookbook_path}"
  raise CookbookNotFound.new(message, e)
rescue => e
  raise ChefConvergeError.new("Chef failed to converge: #{e}", e)
end

#formatter ⇒ Object 



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# File 'lib/chef-dk/chef_runner.rb', line 61

def formatter
  @formatter ||=
    Chef::EventDispatch::Dispatcher.new.tap do |d|
      d.register(Chef::Formatters.new(:doc, stdout, stderr))
    end
end

#ohai ⇒ Object 



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# File 'lib/chef-dk/chef_runner.rb', line 80

def ohai
  return @ohai if @ohai

  @ohai = Ohai::System.new
  @ohai.all_plugins(["platform", "platform_version"])
  @ohai
end

#policy ⇒ Object 



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# File 'lib/chef-dk/chef_runner.rb', line 50

def policy
  return @policy_builder if @policy_builder

  @policy_builder = Chef::PolicyBuilder::ExpandNodeObject.new("chef-dk", ohai.data, {}, nil, formatter)
  @policy_builder.load_node
  @policy_builder.build_node
  @policy_builder.node.run_list(*run_list)
  @policy_builder.expand_run_list
  @policy_builder
end

#run_context ⇒ Object 



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# File 'lib/chef-dk/chef_runner.rb', line 46

def run_context
  @run_context ||= policy.setup_run_context
end

#stderr ⇒ Object 



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# File 'lib/chef-dk/chef_runner.rb', line 92

def stderr
  $stderr
end

#stdout ⇒ Object 



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# File 'lib/chef-dk/chef_runner.rb', line 88

def stdout
  $stdout
end