# File lib/deltacloud/drivers/vsphere/vsphere_filemanager.rb, line 45
    def user_data!(datastore,base64_content,file_name)
      command="#{MKISOFS_EXECUTABLE} -stream-file-name #{file_name}.txt -stream-media-size #{ISO_SECTORS}"
      iso_file=''
      Open3::popen3(command) do |stdin, stdout, stderr|
        stdin.write(base64_content.unpack("m"))
        stdin.close()
        iso_file=StringIO::new(stdout.read)
      end
      uploadFile(datastore,iso_file,file_name)
    end