Class: RightScale::PowershellProviderBase

Inherits:
Chef::Provider show all
Defined in:
lib/chef/windows/powershell_provider_base.rb

Overview

Base class to dynamically generated Powershell Chef providers

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(new_resource, run_context) ⇒ PowershellProviderBase

Returns a new instance of PowershellProviderBase.



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# File 'lib/chef/windows/powershell_provider_base.rb', line 28

def initialize(new_resource, run_context)
  super(new_resource, run_context)
  self.class.init(@run_context.node)
  # Have to wait until the Chef node server has been initialized before setting the new resource
  RightScale::Windows::ChefNodeServer.instance.new_resource = @new_resource
end

Class Method Details

.init(node) ⇒ Object

Initialize Powershell host, should be called before :run and :terminate

Return

true

If init script must be run

false

Otherwise



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# File 'lib/chef/windows/powershell_provider_base.rb', line 40

def self.init(node)
  run_init = @ps_instance.nil?
  @ps_instance = PowershellHost.new(:node => node, :provider_name => self.to_s.gsub("::", "_")) unless @ps_instance
  run_init
end

.run_script(script) ⇒ Object

Run powershell script in associated Powershell instance

Parameters

script(String)

Fully qualified path to Powershell script

Return

true

Always return true



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

def self.run_script(script)
  if @ps_instance
    res = @ps_instance.run(script)

    # the powershell provider script the host runs will return exit code of 100 if the last action threw an exception.
    if res && res[:exit_code] && res[:exit_code] != 0
      message = "Unexpected exit code from action. Expected 0 but returned #{res[:exit_code]}.  Script: #{script}\n"
      message += "#{res[:error_msg]}"
      raise RightScale::Exceptions::Exec, message
    end
  end

  true
end

.terminate ⇒ Object

Terminate Powershell process if it was started

Return

true

Always return true



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# File 'lib/chef/windows/powershell_provider_base.rb', line 72

def self.terminate
  if @ps_instance
    begin
      @ps_instance.terminate
    ensure
      @ps_instance = nil
    end
  end
  true
end

Instance Method Details

#load_current_resource ⇒ Object

Must override Chef’s load_current_resource

Return

true

Always return true



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# File 'lib/chef/windows/powershell_provider_base.rb', line 87

def load_current_resource
  # Dummy
end