Class: VagrantPlugins::XenServer::Action::UploadVHD

Inherits:
Object
  • Object
show all
Defined in:
lib/vagrant-xenserver/action/upload_vhd.rb

Constant Summary collapse

@@lock = 
Mutex.new

Instance Method Summary collapse

Constructor Details

#initialize(app, env) ⇒ UploadVHD

Returns a new instance of UploadVHD.



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# File 'lib/vagrant-xenserver/action/upload_vhd.rb', line 15

def initialize(app, env)
  @app = app
  @logger = Log4r::Logger.new("vagrant::xenserver::actions::upload_vhd")
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/vagrant-xenserver/action/upload_vhd.rb', line 37

def call(env)
  if env[:machine].provider_config.xva_url.nil?
    box_vhd_file = env[:machine].box.directory.join('box.vhd').to_s

    if File.exist?(box_vhd_file)
      hostname = env[:machine].provider_config.xs_host
      session = env[:xc].xenapi_session

      @logger.info("box name=" + env[:machine].box.name.to_s)
      @logger.info("box version=" + env[:machine].box.version.to_s)

      md5cmd = 'md5sum'
      if `uname` =~ /^Darwin/
        md5cmd = 'md5'
      end
      md5=`dd if=#{box_vhd_file} bs=1048576 count=1 | #{md5cmd} | cut '-d ' -f1`.strip

      @logger.info("md5=#{md5}")

      # Find out if it has already been uploaded
      @@lock.synchronize do

        vdis = env[:xc].VDI.get_all_records

        vdi_tag = "vagrant:" + env[:machine].box.name.to_s + "/" + md5

        vdi_ref_rec = vdis.find { |reference,record|
          @logger.info(record['tags'].to_s)
          record['tags'].include?(vdi_tag)
        }

        if not vdi_ref_rec
          virtual_size = get_vhd_size(box_vhd_file)
          @logger.info("virtual_size=#{virtual_size}")
          pool=env[:xc].pool.get_all
          default_sr=env[:xc].pool.get_default_SR(pool[0])
          @logger.info("default_SR="+default_sr)

          # Verify the default SR is valid:
          begin
            env[:xc].SR.get_uuid(default_sr)
          rescue
            raise Errors::NoDefaultSR
          end

          vdi_record = {
            'name_label' => 'Vagrant disk',
            'name_description' => 'Base disk uploaded for the vagrant box '+env[:machine].box.name.to_s+' v'+env[:machine].box.version.to_s,
            'SR' => default_sr,
            'virtual_size' => "#{virtual_size}",
            'type' => 'user',
            'sharable' => false,
            'read_only' => false,
            'other_config' => {},
            'xenstore_data' => {},
            'sm_config' => {},
            'tags' => [] }

          begin
            vdi_result=env[:xc].VDI.create(vdi_record)
          rescue XenApi::Errors::GenericError => e
            MyUtil::Exnhandler.handle_xenapiexn("VDI.create",e,@logger)
          end

          @logger.info("created VDI: " + vdi_result.to_s)
          vdi_uuid = env[:xc].VDI.get_uuid(vdi_result)
          @logger.info("uuid: "+vdi_uuid)

          # Create a task to so we can get the result of the upload
          task = env[:xc].task.create("vagrant-vhd-upload",
                                      "Task to track progress of the XVA upload from vagrant")

          url = "https://#{hostname}/import_raw_vdi?session_id=#{session}&task_id=#{task}&vdi=#{vdi_result}&format=vhd"

          uploader_options = {}
          uploader_options[:ui] = env[:ui]
          uploader_options[:insecure] = true

          uploader = MyUtil::Uploader.new(box_vhd_file, url, uploader_options)

          begin
            uploader.upload!
          rescue
            env[:xc].task.cancel(task)
          end

          task_status = ""

          begin
            sleep(0.2)
            task_status = env[:xc].task.get_status(task)
          end while task_status == "pending"

          @logger.info("task_status="+task_status)

          if task_status != "success"
     # Task failed - let's find out why:
     error_list = env[:xc].task.get_error_info(task)
            MyUtil::Exnhandler.handle("import HTTP handler", error_list)
          end

          task_result = env[:xc].task.get_result(task)

          doc = REXML::Document.new(task_result)

          doc.elements.each('value/array/data/value') do |ele|
            vdi = ele.text
          end

          @logger.info("task_result=" + task_result)

          tag_result=env[:xc].VDI.add_tags(vdi_result,vdi_tag)

          @logger.info("Added tags")

          env[:box_vdi] = vdi_result
        else
          (reference,record) = vdi_ref_rec
          env[:box_vdi] = reference
          @logger.info("box_vdi="+reference)

        end
      end
    end
  end

  @app.call(env)
end

#get_vhd_size(box_vhd_file) ⇒ Object 



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# File 'lib/vagrant-xenserver/action/upload_vhd.rb', line 20

def get_vhd_size(box_vhd_file)
  # Find out virtual size of the VHD
  disk_info={}
  begin
    begin
      disk_info=JSON.parse(IO.popen(["qemu-img", "info",box_vhd_file,"--output=json"]).read) 
    rescue JSON::ParserError
      size=`qemu-img info #{box_vhd_file} | grep "virtual size" | cut "-d(" -f2 | cut "-d " -f1`
      disk_info['virtual-size']=size.strip
    end
  rescue
    @logger.error("Error getting virtual size of VHD: #{box_vhd_file}")
    raise Errors::QemuImgError
  end
  return disk_info['virtual-size']
end