Class: VagrantPlugins::QEMU::Action::Import

Inherits:
Object
  • Object
show all
Defined in:
lib/vagrant-qemu/action/import.rb

Instance Method Summary collapse

Constructor Details

#initialize(app, env) ⇒ Import

Returns a new instance of Import.



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# File 'lib/vagrant-qemu/action/import.rb', line 10

def initialize(app, env)
  @app    = app
  @logger = Log4r::Logger.new("vagrant_qemu::action::import")
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/vagrant-qemu/action/import.rb', line 15

def call(env)
  image_path = Array.new
  if env[:machine].provider_config.image_path
    paths = env[:machine].provider_config.image_path
    paths = [paths] if !paths.kind_of?(Array)
    paths.each do |p|
      image_path.append(Pathname.new(p))
    end
  else
    disks = env[:machine].box.metadata.fetch('disks', [])
    if disks.empty?
      # box v1 format
      image_path.append(env[:machine].box.directory.join("box.img"))
    else
      # box v2 format
      disks.each_with_index do |d, i|
        if d['path'].nil?
          @logger.error("Missing box image path for disk #{i}")
          raise Errors::BoxInvalid, name: env[:machine].name, err: "Missing box image path for disk #{i}"
        end
        image_path.append(env[:machine].box.directory.join(d['path']))
      end
    end
  end

  if image_path.empty?
    @logger.error("Empty box image path")
    raise Errors::BoxInvalid, name: env[:machine].name, err: "Empty box image path"
  end
  image_path.each do |img|
    if !img.file?
      @logger.error("Invalid box image path: #{img}")
      raise Errors::BoxInvalid, name: env[:machine].name, err: "Invalid box image path: #{img}"
    end
    img_str = img.to_s
    stdout, stderr, status = Open3.capture3('qemu-img', 'info', '--output=json', img_str)
    if !status.success?
      @logger.error("Run qemu-img info failed, #{img_str}, out: #{stdout}, err: #{stderr}")
      raise Errors::BoxInvalid, name: env[:machine].name, err: "Run qemu-img info failed, #{img_str}, out: #{stdout}, err: #{stderr}"
    end
    img_info = JSON.parse(stdout)
    format = img_info['format']
    if format != 'qcow2'
      @logger.error("Invalid box image format, #{img_str}, format: #{format}")
      raise Errors::BoxInvalid, name: env[:machine].name, err: "Invalid box image format, #{img_str}, format: #{format}"
    end
    @logger.info("Found box image path: #{img_info}")
  end

  qemu_dir = Pathname.new(env[:machine].provider_config.qemu_dir)
  if !qemu_dir.directory?
    @logger.error("Invalid qemu dir: #{qemu_dir}")
    raise Errors::ConfigError, err: "Invalid qemu dir: #{qemu_dir}"
  else
    @logger.info("Found qemu dir: #{qemu_dir}")
  end

  env[:ui].output("Importing a QEMU instance")

  options = {
    :image_path => image_path,
    :qemu_dir => qemu_dir,
    :arch => env[:machine].provider_config.arch,
    :firmware_format => env[:machine].provider_config.firmware_format
  }

  env[:ui].detail("Creating and registering the VM...")
  server = env[:machine].provider.driver.import(options)

  env[:ui].detail("Successfully imported VM")
  env[:machine].id = server[:id]
  @app.call(env)
end