Class: VagrantPlugins::ProviderLibvirt::Action::CreateDomainVolume

Inherits:
Object
  • Object
show all
Includes:
Util::ErbTemplate
Defined in:
lib/vagrant-libvirt/action/create_domain_volume.rb

Overview

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.

Instance Method Summary collapse

Methods included from Util::ErbTemplate

#to_xml

Constructor Details

#initialize(app, env) ⇒ CreateDomainVolume

Returns a new instance of CreateDomainVolume.


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# 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

Instance Method Details

#call(env) ⇒ Object


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# 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.['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