Class: Chef::Provider::Ifconfig

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

Instance Attribute Summary

Attributes inherited from Chef::Provider

#action, #current_resource, #new_resource, #run_context

Instance Method Summary collapse

Methods included from Mixin::Command

#chdir_or_tmpdir, #handle_command_failures, #output_of_command, #run_command, #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, #cookbook_name, #events, #initialize, #node, #process_resource_requirements, #requirements, #resource_collection, #run_action, #set_updated_status, #whyrun_mode?

Methods included from DSL::Recipe

#method_missing

Methods included from Mixin::ConvertToClassName

#convert_to_class_name, #convert_to_snake_case, #filename_to_qualified_string, #snake_case_basename

Constructor Details

This class inherits a constructor from Chef::Provider

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Chef::DSL::Recipe

Instance Method Details

#action_add ⇒ Object 



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

def action_add
  # check to see if load_current_resource found interface in ifconfig
  unless @current_resource.inet_addr
    unless @new_resource.device == "lo"
      command = "ifconfig #{@new_resource.device} #{@new_resource.name}"
      command << " netmask #{@new_resource.mask}" if @new_resource.mask
      command << " metric #{@new_resource.metric}" if @new_resource.metric
      command << " mtu #{@new_resource.mtu}" if @new_resource.mtu
    end
    converge_by ("run #{command} to add #{@new_resource}") do
      run_command(
        :command => command
      )
      Chef::Log.info("#{@new_resource} added")
    end
  end

  # Write out the config files
  generate_config
end

#action_delete ⇒ Object 



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# File 'lib/chef/provider/ifconfig.rb', line 134

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

#action_disable ⇒ Object 



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# File 'lib/chef/provider/ifconfig.rb', line 150

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 = "ifconfig #{@new_resource.device} down"
    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 114

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 == "lo"
      command = "ifconfig #{@new_resource.device} #{@new_resource.name}"
      command << " netmask #{@new_resource.mask}" if @new_resource.mask
      command << " metric #{@new_resource.metric}" if @new_resource.metric
      command << " mtu #{@new_resource.mtu}" if @new_resource.mtu
    end

    converge_by ("run #{command} to enable #{@new_resource}") do
      run_command(
        :command => command
      )
      Chef::Log.info("#{@new_resource} enabled")
    end
  end
end

#define_resource_requirements ⇒ Object 



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# File 'lib/chef/provider/ifconfig.rb', line 83

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 195

def delete_config
  require 'fileutils'
  case node[:platform]
  when "centos","redhat","fedora"
    ifcfg_file = "/etc/sysconfig/network-scripts/ifcfg-#{@new_resource.device}"
    if ::File.exist?(ifcfg_file)
      converge_by ("delete the #{ifcfg_file}") do
        FileUtils.rm_f(ifcfg_file, :verbose => false)
      end
    end
  when "debian","ubuntu"
    # delete configs
  when "slackware"
    # delete configs
  end
end

#generate_config ⇒ Object 



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# File 'lib/chef/provider/ifconfig.rb', line 166

def generate_config
  b = binding
  case node[:platform]
  when "centos","redhat","fedora"
    content = %{
<% if @new_resource.device %>DEVICE=<%= @new_resource.device %><% end %>
<% if @new_resource.onboot %>ONBOOT=<%= @new_resource.onboot %><% end %>
<% if @new_resource.bootproto %>BOOTPROTO=<%= @new_resource.bootproto %><% end %>
<% if @new_resource.target %>IPADDR=<%= @new_resource.target %><% end %>
<% if @new_resource.mask %>NETMASK=<%= @new_resource.mask %><% end %>
<% if @new_resource.network %>NETWORK=<%= @new_resource.network %><% end %>
<% if @new_resource.bcast %>BROADCAST=<%= @new_resource.bcast %><% end %>
<% if @new_resource.onparent %>ONPARENT=<%= @new_resource.onparent %><% end %>
    }
    template = ::ERB.new(content)
    network_file_name = "/etc/sysconfig/network-scripts/ifcfg-#{@new_resource.device}"
    converge_by ("generate configuration file : #{network_file_name}") do
      network_file = ::File.new(network_file_name, "w")
      network_file.puts(template.result(b))
      network_file.close
    end
    Chef::Log.info("#{@new_resource} created configuration file")
  when "debian","ubuntu"
    # template
  when "slackware"
    # template
  end
end

#load_current_resource ⇒ Object 



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

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(@int_name)
        @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

#whyrun_supported? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chef/provider/ifconfig.rb', line 42

def whyrun_supported?
  true
end