Class: Chef::Provider::Powershell

Inherits:
Execute
  • Object
show all
Defined in:
lib/chef/providers/windows/powershell_provider.rb

Overview

Powershell chef provider.

Constant Summary collapse

SCRIPT_TEMP_DIR_PATH =

use a unique dir name instead of cluttering temp directory with leftover scripts like the original script provider.

::File.join(::Dir.tmpdir, "chef-powershell-06D9AC00-8D64-4213-A46A-611FBAFB4426")

Instance Method Summary collapse

Instance Method Details

#action_run ⇒ Object

runs the PowerShell script in a child process.

Return

true

Always return true

Raise

RightScale::Exceptions::Exec

Invalid process exit status



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# File 'lib/chef/providers/windows/powershell_provider.rb', line 53

def action_run
  nickname         = @new_resource.name
  source           = @new_resource.source
  script_file_path = @new_resource.source_path
  environment      = @new_resource.environment
  current_state    = all_state

  # 1. Write script source into file, if necessary.
  if script_file_path
    (raise RightScale::Exceptions::Exec, "Missing script file \"#{script_file_path}\"") unless ::File.file?(script_file_path)
  else
    FileUtils.mkdir_p(SCRIPT_TEMP_DIR_PATH)
    script_file_path = ::File.join(SCRIPT_TEMP_DIR_PATH, "powershell_provider_source.ps1")
    ::File.open(script_file_path, "w") { |f| f.write(source) }
  end

  begin
    # 2. Setup environment.
    environment = {} if environment.nil?
    environment['RS_ALREADY_RUN'] = current_state[:chef_state].past_scripts.include?(nickname) ? '1' : nil
    environment['RS_REBOOT'] = current_state[:cook_state].reboot?
    @new_resource.environment(environment)

    # 3. execute and wait
    RightScale::Windows::ChefNodeServer.instance.start(:node => node)

    # new_resource points to the powershell script resource in this limited
    # context. there is no current resource in script execution context.
    RightScale::Windows::ChefNodeServer.instance.new_resource = @new_resource

    command = format_command(script_file_path)
    @new_resource.command(command)
    ::Chef::Log.info("Running \"#{nickname}\"")
    super

    # super provider raises an exception on failure, so record success at
    # this point.
    current_state[:chef_state].record_script_execution(nickname)
    @new_resource.updated_by_last_action(true)

    # a script may have requested reboot via rs_shutdown command line
    # tool. if the script requested immediate shutdown then we must call
    # exit here to interrupt the Chef converge (assuming any subsequent
    # boot recipes are pending). otherwise, defer shutdown until scripts/
    # recipes finish or another script escalates to an immediate shutdown.
    exit 0 if RightScale::ShutdownRequestProxy.instance.immediately?
  ensure
    (FileUtils.rm_rf(SCRIPT_TEMP_DIR_PATH) rescue nil) if ::File.directory?(SCRIPT_TEMP_DIR_PATH)
  end

  true
end

#load_current_resource ⇒ Object

No concept of a ‘current’ resource for Powershell execution, this is a no-op

Return

true

Always return true



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# File 'lib/chef/providers/windows/powershell_provider.rb', line 42

def load_current_resource
  true
end