本文整理汇总了Python中nova.virt.xenapi.vm_utils.VMHelper.create_snapshot方法的典型用法代码示例。如果您正苦于以下问题：Python VMHelper.create_snapshot方法的具体用法？Python VMHelper.create_snapshot怎么用？Python VMHelper.create_snapshot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.create_snapshot方法的2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: _get_snapshot
# 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 create_snapshot [as 别名]
def _get_snapshot(self, instance):
#TODO(sirp): Add quiesce and VSS locking support when Windows support
# is added
logging.debug(_("Starting snapshot for VM %s"), instance)
vm_ref = VMHelper.lookup(self._session, instance.name)
label = "%s-snapshot" % instance.name
try:
template_vm_ref, template_vdi_uuids = VMHelper.create_snapshot(
self._session, instance.id, vm_ref, label)
return template_vm_ref, template_vdi_uuids
except self.XenAPI.Failure, exc:
logging.error(_("Unable to Snapshot %(vm_ref)s: %(exc)s")
% locals())
return示例2: snapshot
# 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 create_snapshot [as 别名]
def snapshot(self, instance, image_id):
""" Create snapshot from a running VM instance
:param instance: instance to be snapshotted
:param image_id: id of image to upload to
Steps involved in a XenServer snapshot:
1. XAPI-Snapshot: Snapshotting the instance using XenAPI. This
creates: Snapshot (Template) VM, Snapshot VBD, Snapshot VDI,
Snapshot VHD
2. Wait-for-coalesce: The Snapshot VDI and Instance VDI both point to
a 'base-copy' VDI. The base_copy is immutable and may be chained
with other base_copies. If chained, the base_copies
coalesce together, so, we must wait for this coalescing to occur to
get a stable representation of the data on disk.
3. Push-to-glance: Once coalesced, we call a plugin on the XenServer
that will bundle the VHDs together and then push the bundle into
Glance.
"""
#TODO(sirp): Add quiesce and VSS locking support when Windows support
# is added
logging.debug(_("Starting snapshot for VM %s"), instance)
vm_ref = VMHelper.lookup(self._session, instance.name)
label = "%s-snapshot" % instance.name
try:
template_vm_ref, template_vdi_uuids = VMHelper.create_snapshot(
self._session, instance.id, vm_ref, label)
except self.XenAPI.Failure, exc:
logging.error(_("Unable to Snapshot %(vm_ref)s: %(exc)s")
% locals())
return