# File lib/deltacloud/drivers/opennebula/opennebula_driver.rb, line 124
  def create_instance(credentials, image_id, opts=nil)
        occi_client = new_client(credentials)

        hwp_id = opts[:hwp_id] || 'small'

        instancexml = ERB.new(OCCI_VM).result(binding)
        instancefile = "|echo '#{instancexml}'"

        xmlvm = occi_client.post_vms(instancefile)

        convert_instance(xmlvm.to_s(), credentials)
  end