class VagrantPlugins::ProviderLibvirt::Action::CreateDomainVolume

Create a snapshot of base box image. This new snapshot is just new cow image with backing storage pointing to base box image. Use this image as new domain volume.

Public Class Methods

new(app, env) click to toggle source
# File lib/vagrant-libvirt/action/create_domain_volume.rb, line 13
def initialize(app, env)
  @logger = Log4r::Logger.new("vagrant_libvirt::action::create_domain_volume")
  @app = app
end

Public Instance Methods

call(env) click to toggle source
# File lib/vagrant-libvirt/action/create_domain_volume.rb, line 18
def call(env)
  env[:ui].info(I18n.t("vagrant_libvirt.creating_domain_volume"))

  # Get config options.
  config = env[:machine].provider_config

  # This is name of newly created image for vm.
  @name = "#{env[:domain_name]}.img"

  # Verify the volume doesn't exist already.
  domain_volume = ProviderLibvirt::Util::Collection.find_matching(
    env[:libvirt_compute].volumes.all, @name)
  raise Errors::DomainVolumeExists if domain_volume

  # Get path to backing image - box volume.
  box_volume = ProviderLibvirt::Util::Collection.find_matching(
    env[:libvirt_compute].volumes.all, env[:box_volume_name])
  @backing_file = box_volume.path

  # Virtual size of image. Same as box image size.
  @capacity = env[:machine].box.metadata['virtual_size'] #G

  # Create new volume from xml template. Fog currently doesn't support
  # volume snapshots directly.
  begin
    domain_volume = env[:libvirt_compute].volumes.create(
      :xml       => to_xml('volume_snapshot'),
      :pool_name => config.storage_pool_name)
  rescue Fog::Errors::Error => e
    raise Errors::FogDomainVolumeCreateError,
      :error_message => e.message
  end

  @app.call(env)
end