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# Copyright (c) 2009-2012 Mitch Garnaat http://garnaat.org/
# Copyright (c) 2012 Amazon.com, Inc. or its affiliates. All Rights Reserved
#
# 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.
#
class BlockDeviceType(object):
"""
Represents parameters for a block device.
"""
def __init__(self,
connection=None,
ephemeral_name=None,
no_device=False,
volume_id=None,
snapshot_id=None,
status=None,
attach_time=None,
delete_on_termination=False,
size=None,
volume_type=None,
iops=None,
encrypted=None):
self.connection = connection
self.ephemeral_name = ephemeral_name
self.no_device = no_device
self.volume_id = volume_id
self.snapshot_id = snapshot_id
self.status = status
self.attach_time = attach_time
self.delete_on_termination = delete_on_termination
self.size = size
self.volume_type = volume_type
self.iops = iops
self.encrypted = encrypted
def startElement(self, name, attrs, connection):
pass
def endElement(self, name, value, connection):
lname = name.lower()
if name == 'volumeId':
self.volume_id = value
elif lname == 'virtualname':
self.ephemeral_name = value
elif lname == 'nodevice':
self.no_device = (value == 'true')
elif lname == 'snapshotid':
self.snapshot_id = value
elif lname == 'volumesize':
self.size = int(value)
elif lname == 'status':
self.status = value
elif lname == 'attachtime':
self.attach_time = value
elif lname == 'deleteontermination':
self.delete_on_termination = (value == 'true')
elif lname == 'volumetype':
self.volume_type = value
elif lname == 'iops':
self.iops = int(value)
elif lname == 'encrypted':
self.encrypted = (value == 'true')
else:
setattr(self, name, value)
# for backwards compatibility
EBSBlockDeviceType = BlockDeviceType
class BlockDeviceMapping(dict):
"""
Represents a collection of BlockDeviceTypes when creating ec2 instances.
Example:
dev_sda1 = BlockDeviceType()
dev_sda1.size = 100 # change root volume to 100GB instead of default
bdm = BlockDeviceMapping()
bdm['/dev/sda1'] = dev_sda1
reservation = image.run(..., block_device_map=bdm, ...)
"""
def __init__(self, connection=None):
"""
:type connection: :class:`boto.ec2.EC2Connection`
:param connection: Optional connection.
"""
dict.__init__(self)
self.connection = connection
self.current_name = None
self.current_value = None
def startElement(self, name, attrs, connection):
lname = name.lower()
if lname in ['ebs', 'virtualname']:
self.current_value = BlockDeviceType(self)
return self.current_value
def endElement(self, name, value, connection):
lname = name.lower()
if lname in ['device', 'devicename']:
self.current_name = value
elif lname in ['item', 'member']:
self[self.current_name] = self.current_value
def ec2_build_list_params(self, params, prefix=''):
pre = '%sBlockDeviceMapping' % prefix
return self._build_list_params(params, prefix=pre)
def autoscale_build_list_params(self, params, prefix=''):
pre = '%sBlockDeviceMappings.member' % prefix
return self._build_list_params(params, prefix=pre)
def _build_list_params(self, params, prefix=''):
i = 1
for dev_name in self:
pre = '%s.%d' % (prefix, i)
params['%s.DeviceName' % pre] = dev_name
block_dev = self[dev_name]
if block_dev.ephemeral_name:
params['%s.VirtualName' % pre] = block_dev.ephemeral_name
else:
if block_dev.no_device:
params['%s.NoDevice' % pre] = ''
else:
if block_dev.snapshot_id:
params['%s.Ebs.SnapshotId' % pre] = block_dev.snapshot_id
if block_dev.size:
params['%s.Ebs.VolumeSize' % pre] = block_dev.size
if block_dev.delete_on_termination:
params['%s.Ebs.DeleteOnTermination' % pre] = 'true'
else:
params['%s.Ebs.DeleteOnTermination' % pre] = 'false'
if block_dev.volume_type:
params['%s.Ebs.VolumeType' % pre] = block_dev.volume_type
if block_dev.iops is not None:
params['%s.Ebs.Iops' % pre] = block_dev.iops
# The encrypted flag (even if False) cannot be specified for the root EBS
# volume.
if block_dev.encrypted is not None:
if block_dev.encrypted:
params['%s.Ebs.Encrypted' % pre] = 'true'
else:
params['%s.Ebs.Encrypted' % pre] = 'false'
i += 1