Class: Chef::Provider::Ifconfig

Inherits:
Chef::Provider show all
Includes:
Mixin::Command
Defined in:
lib/chef/provider/ifconfig.rb,
lib/chef/provider/ifconfig/aix.rb,
lib/chef/provider/ifconfig/debian.rb,
lib/chef/provider/ifconfig/redhat.rb

Direct Known Subclasses

Aix, Debian, Redhat

Defined Under Namespace

Classes: Aix, Debian, Redhat

Constant Summary

Constants included from Mixin::ShellOut

Mixin::ShellOut::DEPRECATED_OPTIONS

Instance Attribute Summary collapse

Attributes inherited from Chef::Provider

#action, #cookbook_name, #current_resource, #new_resource, #recipe_name, #run_context

Instance Method Summary collapse

Methods included from Mixin::Command

#chdir_or_tmpdir, #handle_command_failures, #output_of_command, #run_command, #run_command_and_return_stdout_stderr, #run_command_with_systems_locale

Methods included from Mixin::Command::Windows

#popen4

Methods included from Mixin::Command::Unix

#popen4

Methods inherited from Chef::Provider

#action_nothing, #cleanup_after_converge, #converge_by, #events, #node, node_map, #process_resource_requirements, provides, provides?, #requirements, #resource_collection, #resource_updated?, #run_action, #set_updated_status, supports?, #whyrun_mode?

Methods included from Mixin::DescendantsTracker

#descendants, descendants, direct_descendants, #direct_descendants, find_descendants_by_name, #find_descendants_by_name, #inherited, store_inherited

Methods included from Mixin::ShellOut

#run_command_compatible_options, #shell_out, #shell_out!, #shell_out_with_systems_locale, #shell_out_with_systems_locale!

Constructor Details

#initialize(new_resource, run_context) ⇒ Ifconfig

Returns a new instance of Ifconfig.



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# File 'lib/chef/provider/ifconfig.rb', line 46

def initialize(new_resource, run_context)
  super(new_resource, run_context)
  @config_template = nil
  @config_path = nil
end

Instance Attribute Details

#config_path ⇒ Object

Returns the value of attribute config_path.



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# File 'lib/chef/provider/ifconfig.rb', line 44

def config_path
  @config_path
end

#config_template ⇒ Object

Returns the value of attribute config_template.



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# File 'lib/chef/provider/ifconfig.rb', line 43

def config_template
  @config_template
end

Instance Method Details

#action_add ⇒ Object 



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# File 'lib/chef/provider/ifconfig.rb', line 103

def action_add
  # check to see if load_current_resource found interface in ifconfig
  unless @current_resource.inet_addr
    unless @new_resource.device == loopback_device
      command = add_command
      converge_by ("run #{command} to add #{@new_resource}") do
        run_command(
          :command => command
        )
        Chef::Log.info("#{@new_resource} added")
      end
    end
  end
  # Write out the config files
  generate_config
end

#action_delete ⇒ Object 



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# File 'lib/chef/provider/ifconfig.rb', line 136

def action_delete
  # check to see if load_current_resource found the interface
  if @current_resource.device
    command = delete_command
    converge_by ("run #{command} to delete #{@new_resource}") do
      run_command(
        :command => command
      )
      Chef::Log.info("#{@new_resource} deleted")
    end
  else
    Chef::Log.debug("#{@new_resource} does not exist - nothing to do")
  end
  delete_config
end

#action_disable ⇒ Object 



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# File 'lib/chef/provider/ifconfig.rb', line 152

def action_disable
  # check to see if load_current_resource found the interface
  # disables, but leaves config files in place.
  if @current_resource.device
    command = disable_command
    converge_by ("run #{command} to disable #{@new_resource}") do
      run_command(
        :command => command
      )
      Chef::Log.info("#{@new_resource} disabled")
    end
  else
    Chef::Log.debug("#{@new_resource} does not exist - nothing to do")
  end
end

#action_enable ⇒ Object 



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# File 'lib/chef/provider/ifconfig.rb', line 120

def action_enable
  # check to see if load_current_resource found ifconfig
  # enables, but does not manage config files
  unless @current_resource.inet_addr
    unless @new_resource.device == loopback_device
      command = enable_command
      converge_by ("run #{command} to enable #{@new_resource}") do
        run_command(
          :command => command
        )
        Chef::Log.info("#{@new_resource} enabled")
      end
    end
  end
end

#can_generate_config? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chef/provider/ifconfig.rb', line 168

def can_generate_config?
  ! @config_template.nil? and ! @config_path.nil?
end

#define_resource_requirements ⇒ Object 



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# File 'lib/chef/provider/ifconfig.rb', line 93

def define_resource_requirements
  requirements.assert(:all_actions) do |a|
    a.assertion { @status.exitstatus == 0 }
    a.failure_message Chef::Exceptions::Ifconfig, "ifconfig failed - #{@status.inspect}!"
    # no whyrun - if the base ifconfig used in load_current_resource fails
    # there's no reasonable action that could have been taken in the course of
    # a chef run to fix it.
  end
end

#delete_config ⇒ Object 



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# File 'lib/chef/provider/ifconfig.rb', line 186

def delete_config
  return unless can_generate_config?
  config = resource_for_config(@config_path)
  config.run_action(:delete)
  @new_resource.updated_by_last_action(true) if config.updated?
end

#generate_config ⇒ Object 



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# File 'lib/chef/provider/ifconfig.rb', line 176

def generate_config
  return unless can_generate_config?
  b = binding
  template = ::ERB.new(@config_template)
  config = resource_for_config(@config_path)
  config.content(template.result(b))
  config.run_action(:create)
  @new_resource.updated_by_last_action(true) if config.updated?
end

#load_current_resource ⇒ Object 



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# File 'lib/chef/provider/ifconfig.rb', line 56

def load_current_resource
  @current_resource = Chef::Resource::Ifconfig.new(@new_resource.name)

  @ifconfig_success = true
  @interfaces = {}

  @status = popen4("ifconfig") do |pid, stdin, stdout, stderr|
    stdout.each do |line|

      if !line[0..9].strip.empty?
        @int_name = line[0..9].strip
        @interfaces[@int_name] = {"hwaddr" => (line =~ /(HWaddr)/ ? ($') : "nil").strip.chomp }
      else
        @interfaces[@int_name]["inet_addr"] = (line =~ /inet addr:(\S+)/ ? ($1) : "nil") if line =~ /inet addr:/
        @interfaces[@int_name]["bcast"] = (line =~ /Bcast:(\S+)/ ? ($1) : "nil") if line =~ /Bcast:/
        @interfaces[@int_name]["mask"] = (line =~ /Mask:(\S+)/ ? ($1) : "nil") if line =~ /Mask:/
        @interfaces[@int_name]["mtu"] = (line =~ /MTU:(\S+)/ ? ($1) : "nil") if line =~ /MTU:/
        @interfaces[@int_name]["metric"] = (line =~ /Metric:(\S+)/ ? ($1) : "nil") if line =~ /Metric:/
      end

      if @interfaces.has_key?(@new_resource.device)
        @interface = @interfaces.fetch(@new_resource.device)

        @current_resource.target(@new_resource.target)
        @current_resource.device(@new_resource.device)
        @current_resource.inet_addr(@interface["inet_addr"])
        @current_resource.hwaddr(@interface["hwaddr"])
        @current_resource.bcast(@interface["bcast"])
        @current_resource.mask(@interface["mask"])
        @current_resource.mtu(@interface["mtu"])
        @current_resource.metric(@interface["metric"])
      end
    end
  end
  @current_resource
end

#resource_for_config(path) ⇒ Object 



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# File 'lib/chef/provider/ifconfig.rb', line 172

def resource_for_config(path)
  Chef::Resource::File.new(path, run_context)
end

#whyrun_supported? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chef/provider/ifconfig.rb', line 52

def whyrun_supported?
  true
end