本文整理汇总了Python中nova.virt.xenapi.vm_utils.VMHelper.preconfigure_instance方法的典型用法代码示例。如果您正苦于以下问题：Python VMHelper.preconfigure_instance方法的具体用法？Python VMHelper.preconfigure_instance怎么用？Python VMHelper.preconfigure_instance使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类nova.virt.xenapi.vm_utils.VMHelper的用法示例。
在下文中一共展示了VMHelper.preconfigure_instance方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: _create_vm
# 需要导入模块: from nova.virt.xenapi.vm_utils import VMHelper [as 别名]
# 或者: from nova.virt.xenapi.vm_utils.VMHelper import preconfigure_instance [as 别名]
def _create_vm(self, instance, vdi_uuid, network_info=None):
"""Create VM instance."""
instance_name = instance.name
vm_ref = VMHelper.lookup(self._session, instance_name)
if vm_ref is not None:
raise exception.InstanceExists(name=instance_name)
#ensure enough free memory is available
if not VMHelper.ensure_free_mem(self._session, instance):
LOG.exception(_('instance %(instance_name)s: not enough free '
'memory') % locals())
db.instance_set_state(context.get_admin_context(),
instance['id'],
power_state.SHUTDOWN)
return
user = AuthManager().get_user(instance.user_id)
project = AuthManager().get_project(instance.project_id)
# Are we building from a pre-existing disk?
vdi_ref = self._session.call_xenapi('VDI.get_by_uuid', vdi_uuid)
disk_image_type = VMHelper.determine_disk_image_type(instance)
kernel = None
if instance.kernel_id:
kernel = VMHelper.fetch_image(self._session, instance.id,
instance.kernel_id, user, project, ImageType.KERNEL_RAMDISK)
ramdisk = None
if instance.ramdisk_id:
ramdisk = VMHelper.fetch_image(self._session, instance.id,
instance.ramdisk_id, user, project, ImageType.KERNEL_RAMDISK)
use_pv_kernel = VMHelper.determine_is_pv(self._session, instance.id,
vdi_ref, disk_image_type, instance.os_type)
vm_ref = VMHelper.create_vm(self._session, instance, kernel, ramdisk,
use_pv_kernel)
VMHelper.create_vbd(session=self._session, vm_ref=vm_ref,
vdi_ref=vdi_ref, userdevice=0, bootable=True)
# TODO(tr3buchet) - check to make sure we have network info, otherwise
# create it now. This goes away once nova-multi-nic hits.
if network_info is None:
network_info = self._get_network_info(instance)
# Alter the image before VM start for, e.g. network injection
if FLAGS.xenapi_inject_image:
VMHelper.preconfigure_instance(self._session, instance,
vdi_ref, network_info)
self.create_vifs(vm_ref, network_info)
self.inject_network_info(instance, network_info, vm_ref)
return vm_ref