Class: VagrantPlugins::ProviderLibvirt::Action::CreateNetworkInterfaces

Inherits:
Object
  • Object
show all
Includes:
Vagrant::Util::NetworkIP, Vagrant::Util::ScopedHashOverride, Util::ErbTemplate, Util::LibvirtUtil
Defined in:
lib/vagrant-libvirt/action/create_network_interfaces.rb

Overview

Create network interfaces for domain, before domain is running. Networks for connecting those interfaces should be already prepared.

Instance Method Summary collapse

Methods included from Util::LibvirtUtil

#libvirt_networks

Methods included from Util::ErbTemplate

#to_xml

Constructor Details

#initialize(app, env) ⇒ CreateNetworkInterfaces

Returns a new instance of CreateNetworkInterfaces.



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# File 'lib/vagrant-libvirt/action/create_network_interfaces.rb', line 17

def initialize(app, env)
  @logger = Log4r::Logger.new('vagrant_libvirt::action::create_network_interfaces')
  @default_network = env[:machine].provider_config.default_network;
  @app = app
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/vagrant-libvirt/action/create_network_interfaces.rb', line 23

def call(env)
  # Get domain first.
  begin
    domain = env[:libvirt_compute].client.lookup_domain_by_uuid(
      env[:machine].id.to_s)
  rescue => e
    raise Errors::NoDomainError,
      :error_message => e.message
  end

  # Setup list of interfaces before creating them.
  adapters = []

  # Vagrant gives you adapter 0 by default

  # Assign interfaces to slots.
  env[:machine].config.vm.networks.each do |type, options|

    # Get options for this interface. Options can be specified in
    # Vagrantfile in short format (:ip => ...), or provider format
    # (:libvirt__network_name => ...).
    options = scoped_hash_override(options, :libvirt)
    options = { :netmask => '255.255.255.0', :iface_type => type }.merge(options)

    # TODO fill first ifaces with adapter option specified.
    if options[:adapter]
      if adapters[options[:adapter]]
        raise Errors::InterfaceSlotNotAvailable
      end

      free_slot = options[:adapter].to_i
    else
      free_slot = find_empty(adapters)
      raise Errors::InterfaceSlotNotAvailable if free_slot == nil
    end

    # We have slot for interface, fill it with interface configuration.
    adapters[free_slot] = options
    adapters[free_slot][:network_name] = interface_network(
      env[:libvirt_compute].client, adapters[free_slot])
  end

  # Create each interface as new domain device.
  adapters.each_with_index do |iface_configuration, slot_number|
    @iface_number = slot_number
    @network_name = iface_configuration[:network_name]
    @mac = iface_configuration.fetch(:mac, false)
    template_name = 'interface'

    # Configuration for public interfaces which use the macvtap driver
    if iface_configuration[:iface_type] == :public_network
      template_name = 'public_interface'
      @device = iface_configuration.fetch(:dev, 'eth0')
      @mode = iface_configuration.fetch(:mode, 'bridge')
      @logger.info("Setting up public interface using device #{@device} in mode #{@mode}")
    end

    message = "Creating network interface eth#{@iface_number}"
    message << " connected to network #{@network_name}."
    if @mac
      message << " Using MAC address: #{@mac}"
    end
    @logger.info(message)

    begin
      domain.attach_device(to_xml(template_name))
    rescue => e
      raise Errors::AttachDeviceError,
        :error_message => e.message
    end
  end

  # Continue the middleware chain.
  @app.call(env)

  # Configure interfaces that user requested. Machine should be up and
  # running now.
  networks_to_configure = []

  adapters.each_with_index do |options, slot_number|
    # Skip configuring first interface. It's used for provisioning and
    # it has to be available during provisioning - ifdown command is
    # not acceptable here.
    next if slot_number == 0

    network = {
      :interface => slot_number,
      #:mac => ...,
    }

    if options[:ip]
      network = {
        :type    => :static,
        :ip      => options[:ip],
        :netmask => options[:netmask],
      }.merge(network)
    else
      network[:type] = :dhcp
    end

    networks_to_configure << network
  end

  env[:ui].info I18n.t('vagrant.actions.vm.network.configuring')
  env[:machine].guest.capability(
    :configure_networks, networks_to_configure)
end