Python VMachine.invalidate_dynamics方法代碼示例

# 需要導入模塊: from ovs.dal.hybrids.vmachine import VMachine [as 別名]
# 或者: from ovs.dal.hybrids.vmachine.VMachine import invalidate_dynamics [as 別名]
    def set_as_template(machineguid):
        """
        Set a vmachine as template

        @param machineguid: guid of the machine
        @return: vmachine template conversion successful: True|False
        """
        # Do some magic on the storage layer?
        # This is most likely required as extra security measure
        # Suppose the template is set back to a real machine
        # it can be deleted within vmware which should be blocked.
        # This might also require a storagerouter internal check
        # to be implemented to discourage volumes from being deleted
        # when clones were made from it.

        vmachine = VMachine(machineguid)
        if vmachine.hypervisor_status == 'RUNNING':
            raise RuntimeError('vMachine {0} may not be running to set it as vTemplate'.format(vmachine.name))

        for disk in vmachine.vdisks:
            VDiskController.set_as_template(diskguid=disk.guid)

        vmachine.is_vtemplate = True
        vmachine.invalidate_dynamics(['snapshots'])
        vmachine.save()

# 需要導入模塊: from ovs.dal.hybrids.vmachine import VMachine [as 別名]
# 或者: from ovs.dal.hybrids.vmachine.VMachine import invalidate_dynamics [as 別名]
    def snapshot(machineguid, label=None, is_consistent=False, timestamp=None, is_automatic=False, is_sticky=False):
        """
        Snapshot VMachine disks

        :param machineguid: guid of the machine
        :param label: label to give the snapshots
        :param is_consistent: flag indicating the snapshot was consistent or not
        :param timestamp: override timestamp, if required. Should be a unix timestamp
        :param is_automatic: Flag to determine automated snapshots
        :param is_sticky: Flag indicating the snapshot is not to be deleted automatically
        """

        timestamp = timestamp if timestamp is not None else time.time()
        timestamp = str(int(float(timestamp)))

        if is_automatic is True and is_sticky is True:
            raise ValueError('Snapshot {0} cannot be both automatic and sticky'.format(label))
        metadata = {'label': label,
                    'is_consistent': is_consistent,
                    'timestamp': timestamp,
                    'machineguid': machineguid,
                    'is_automatic': is_automatic,
                    'is_sticky': is_sticky}
        machine = VMachine(machineguid)

        # @todo: we now skip creating a snapshot when a vmachine's disks
        #        is missing a mandatory property: volume_id
        #        sub-task will now raise an exception earlier in the workflow
        for disk in machine.vdisks:
            if not disk.volume_id:
                message = 'Missing volume_id on disk {0} - unable to create snapshot for vm {1}'.format(
                    disk.guid, machine.guid
                )
                VMachineController._logger.info('Error: {0}'.format(message))
                raise RuntimeError(message)

        snapshots = {}
        success = True
        for disk in machine.vdisks:
            try:
                snapshots[disk.guid] = VDiskController.create_snapshot(diskguid=disk.guid,
                                                                       metadata=metadata)
            except Exception as ex:
                VMachineController._logger.info('Error taking snapshot of disk {0}: {1}'.format(disk.name, str(ex)))
                success = False
                for diskguid, snapshotid in snapshots.iteritems():
                    VDiskController.delete_snapshot(diskguid=diskguid,
                                                    snapshotid=snapshotid)
        VMachineController._logger.info('Create snapshot for vMachine {0}: {1}'.format(
            machine.name, 'Success' if success else 'Failure'
        ))
        machine.invalidate_dynamics(['snapshots'])
        if not success:
            raise RuntimeError('Failed to snapshot vMachine {0}'.format(machine.name))

# 需要導入模塊: from ovs.dal.hybrids.vmachine import VMachine [as 別名]
# 或者: from ovs.dal.hybrids.vmachine.VMachine import invalidate_dynamics [as 別名]
 def delete_snapshot(vmachineguid, timestamp):
     """
     Remove a snapshot from the vmachine
     @param vmachineguid: Guid of the virtual machine
     @param timestamp: timestamp of the snapshot
     """
     vmachine = VMachine(vmachineguid)
     vmachine_snapshots = [snap for snap in vmachine.snapshots if snap['timestamp'] == str(timestamp)]
     if len(vmachine_snapshots) != 1:
         raise RuntimeError('Snapshot {0} does not belong to vmachine {1}'.format(timestamp, vmachine.name))
     vmachine_snapshot = vmachine_snapshots[0]
     VMachineController._logger.info('Deleting snapshot {0} from vmachine {1}'.format(timestamp, vmachine.name))
     for diskguid, snapshotid in vmachine_snapshot['snapshots'].items():
         VDiskController.delete_snapshot(diskguid, snapshotid)
     VMachineController._logger.info('Deleted snapshot {0}'.format(timestamp))
     vmachine.invalidate_dynamics(['snapshots'])

# 需要導入模塊: from ovs.dal.hybrids.vmachine import VMachine [as 別名]
# 或者: from ovs.dal.hybrids.vmachine.VMachine import invalidate_dynamics [as 別名]
    def rollback(machineguid, timestamp):
        """
        Rolls back a VM based on a given disk snapshot timestamp
        """
        vmachine = VMachine(machineguid)
        if vmachine.hypervisor_status == 'RUNNING':
            raise RuntimeError('vMachine {0} may not be running to set it as vTemplate'.format(
                vmachine.name
            ))

        snapshots = [snap for snap in vmachine.snapshots if snap['timestamp'] == timestamp]
        if not snapshots:
            raise ValueError('No vmachine snapshots found for timestamp {0}'.format(timestamp))

        for disk in vmachine.vdisks:
            VDiskController.rollback(diskguid=disk.guid,
                                     timestamp=timestamp)

        vmachine.invalidate_dynamics(['snapshots'])