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# Copyright (c) 2006-2010 Mitch Garnaat http://garnaat.org/
# Copyright (c) 2010, Eucalyptus Systems, Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish, dis-
# tribute, sublicense, and/or sell copies of the Software, and to permit
# persons to whom the Software is furnished to do so, subject to the fol-
# lowing conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
"""
Represents an EC2 Elastic Block Store Snapshot
"""
from boto.ec2.ec2object import TaggedEC2Object
from boto.ec2.zone import Zone
class Snapshot(TaggedEC2Object):
AttrName = 'createVolumePermission'
def __init__(self, connection=None):
super(Snapshot, self).__init__(connection)
self.id = None
self.volume_id = None
self.status = None
self.progress = None
self.start_time = None
self.owner_id = None
self.owner_alias = None
self.volume_size = None
self.description = None
self.encrypted = None
def __repr__(self):
return 'Snapshot:%s' % self.id
def endElement(self, name, value, connection):
if name == 'snapshotId':
self.id = value
elif name == 'volumeId':
self.volume_id = value
elif name == 'status':
self.status = value
elif name == 'startTime':
self.start_time = value
elif name == 'ownerId':
self.owner_id = value
elif name == 'ownerAlias':
self.owner_alias = value
elif name == 'volumeSize':
try:
self.volume_size = int(value)
except:
self.volume_size = value
elif name == 'description':
self.description = value
elif name == 'encrypted':
self.encrypted = (value.lower() == 'true')
else:
setattr(self, name, value)
def _update(self, updated):
self.progress = updated.progress
self.status = updated.status
def update(self, validate=False, dry_run=False):
"""
Update the data associated with this snapshot by querying EC2.
:type validate: bool
:param validate: By default, if EC2 returns no data about the
snapshot the update method returns quietly. If
the validate param is True, however, it will
raise a ValueError exception if no data is
returned from EC2.
"""
rs = self.connection.get_all_snapshots([self.id], dry_run=dry_run)
if len(rs) > 0:
self._update(rs[0])
elif validate:
raise ValueError('%s is not a valid Snapshot ID' % self.id)
return self.progress
def delete(self, dry_run=False):
return self.connection.delete_snapshot(self.id, dry_run=dry_run)
def get_permissions(self, dry_run=False):
attrs = self.connection.get_snapshot_attribute(
self.id,
self.AttrName,
dry_run=dry_run
)
return attrs.attrs
def share(self, user_ids=None, groups=None, dry_run=False):
return self.connection.modify_snapshot_attribute(self.id,
self.AttrName,
'add',
user_ids,
groups,
dry_run=dry_run)
def unshare(self, user_ids=None, groups=None, dry_run=False):
return self.connection.modify_snapshot_attribute(self.id,
self.AttrName,
'remove',
user_ids,
groups,
dry_run=dry_run)
def reset_permissions(self, dry_run=False):
return self.connection.reset_snapshot_attribute(
self.id,
self.AttrName,
dry_run=dry_run
)
def create_volume(self, zone, size=None, volume_type=None, iops=None,
dry_run=False):
"""
Create a new EBS Volume from this Snapshot
:type zone: string or :class:`boto.ec2.zone.Zone`
:param zone: The availability zone in which the Volume will be created.
:type size: int
:param size: The size of the new volume, in GiB. (optional). Defaults to
the size of the snapshot.
:type volume_type: string
:param volume_type: The type of the volume. (optional). Valid
values are: standard | io1.
:type iops: int
:param iops: The provisioned IOPs you want to associate with
this volume. (optional)
"""
if isinstance(zone, Zone):
zone = zone.name
return self.connection.create_volume(
size,
zone,
self.id,
volume_type,
iops,
self.encrypted,
dry_run=dry_run
)
class SnapshotAttribute(object):
def __init__(self, parent=None):
self.snapshot_id = None
self.attrs = {}
def startElement(self, name, attrs, connection):
return None
def endElement(self, name, value, connection):
if name == 'createVolumePermission':
self.name = 'create_volume_permission'
elif name == 'group':
if 'groups' in self.attrs:
self.attrs['groups'].append(value)
else:
self.attrs['groups'] = [value]
elif name == 'userId':
if 'user_ids' in self.attrs:
self.attrs['user_ids'].append(value)
else:
self.attrs['user_ids'] = [value]
elif name == 'snapshotId':
self.snapshot_id = value
else:
setattr(self, name, value)
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