Class: VagrantPlugins::ProviderLibvirt::Action::PackageDomain

Inherits:
Object
  • Object
show all
Defined in:
lib/vagrant-libvirt/action/package_domain.rb

Overview

Action for create new box for Libvirt provider

Instance Method Summary collapse

Constructor Details

#initialize(app, env) ⇒ PackageDomain

Returns a new instance of PackageDomain.



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# File 'lib/vagrant-libvirt/action/package_domain.rb', line 9

def initialize(app, env)
  @logger = Log4r::Logger.new('vagrant_libvirt::action::package_domain')
  @app = app
  env['package.files'] ||= {}
  env['package.output'] ||= 'package.box'
end

Instance Method Details

#assemble_box(boxname, extra) ⇒ Object 



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# File 'lib/vagrant-libvirt/action/package_domain.rb', line 81

def assemble_box(boxname, extra)
  `tar cvzf "#{boxname}" --totals ./metadata.json ./Vagrantfile ./box.img #{extra}`
end

#call(env) ⇒ Object

Raises:



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# File 'lib/vagrant-libvirt/action/package_domain.rb', line 16

def call(env)
  env[:ui].info(I18n.t('vagrant_libvirt.package_domain'))
  libvirt_domain = env[:machine].provider.driver.connection.client.lookup_domain_by_uuid(
    env[:machine].id
  )
  domain = env[:machine].provider.driver.connection.servers.get(env[:machine].id.to_s)
  root_disk = domain.volumes.select do |x|
    x.name == libvirt_domain.name + '.img'
  end.first
  raise Errors::NoDomainVolume if root_disk.nil?
  boxname = env['package.output']
  raise "#{boxname}: Already exists" if File.exist?(boxname)
  @tmp_dir = Dir.pwd + '/_tmp_package'
  @tmp_img = @tmp_dir + '/box.img'
  FileUtils.mkdir_p(@tmp_dir)
  env[:ui].info("Downloading #{root_disk.name} to #{@tmp_img}")
  ret = download_image(@tmp_img, env[:machine].provider_config.storage_pool_name,
                       root_disk.name, env) do |progress,image_size|
    env[:ui].clear_line
    env[:ui].report_progress(progress, image_size, false)
  end
  # Clear the line one last time since the progress meter doesn't
  # disappear immediately.
  env[:ui].clear_line
  backing = `qemu-img info "#{@tmp_img}" | grep 'backing file:' | cut -d ':' -f2`.chomp
  if backing
    env[:ui].info('Image has backing image, copying image and rebasing ...')
    `qemu-img rebase -p -b "" #{@tmp_img}`
  end
  # remove hw association with interface
  # working for centos with lvs default disks
  options = ENV.fetch('VAGRANT_LIBVIRT_VIRT_SYSPREP_OPTIONS', '')
  operations = ENV.fetch('VAGRANT_LIBVIRT_VIRT_SYSPREP_OPERATIONS', 'defaults,-ssh-userdir')
  `virt-sysprep --no-logfile --operations #{operations} -a #{@tmp_img} #{options}`
  # add any user provided file
  extra = ''
  @tmp_include = @tmp_dir + '/_include'
  if env['package.include']
    extra = './_include'
    Dir.mkdir(@tmp_include)
    env['package.include'].each do |f|
      env[:ui].info("Including user file: #{f}")
      FileUtils.cp(f, @tmp_include)
    end
  end
  if env['package.vagrantfile']
    extra = './_include'
    Dir.mkdir(@tmp_include) unless File.directory?(@tmp_include)
    env[:ui].info('Including user Vagrantfile')
    FileUtils.cp(env['package.vagrantfile'], @tmp_include + '/Vagrantfile')
  end
  Dir.chdir(@tmp_dir)
  info = JSON.parse(`qemu-img info --output=json #{@tmp_img}`)
  img_size = (Float(info['virtual-size'])/(1024**3)).ceil
  File.write(@tmp_dir + '/metadata.json', metadata_content(img_size))
  File.write(@tmp_dir + '/Vagrantfile', vagrantfile_content)
  assemble_box(boxname, extra)
  FileUtils.mv(@tmp_dir + '/' + boxname, '../' + boxname)
  FileUtils.rm_rf(@tmp_dir)
  env[:ui].info('Box created')
  env[:ui].info('You can now add the box:')
  env[:ui].info("vagrant box add #{boxname} --name any_comfortable_name")
  @app.call(env)
end

#metadata_content(filesize) ⇒ Object 



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# File 'lib/vagrant-libvirt/action/package_domain.rb', line 101

def metadata_content(filesize)
  <<-EOF
    {
      "provider": "libvirt",
      "format": "qcow2",
      "virtual_size": #{filesize}
    }
  EOF
end

#vagrantfile_content ⇒ Object 



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# File 'lib/vagrant-libvirt/action/package_domain.rb', line 85

def vagrantfile_content
  <<-EOF
    Vagrant.configure("2") do |config|
      config.vm.provider :libvirt do |libvirt|
        libvirt.driver = "kvm"
        libvirt.host = ""
        libvirt.connect_via_ssh = false
        libvirt.storage_pool_name = "default"
      end
    end

    user_vagrantfile = File.expand_path('../_include/Vagrantfile', __FILE__)
    load user_vagrantfile if File.exists?(user_vagrantfile)
  EOF
end