166 lines
6.2 KiB
Python
166 lines
6.2 KiB
Python
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# Copyright (c) 2009-2012 Mitch Garnaat http://garnaat.org/
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# Copyright (c) 2012 Amazon.com, Inc. or its affiliates. All Rights Reserved
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish, dis-
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# tribute, sublicense, and/or sell copies of the Software, and to permit
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# persons to whom the Software is furnished to do so, subject to the fol-
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# lowing conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
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# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
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# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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#
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class BlockDeviceType(object):
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"""
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Represents parameters for a block device.
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"""
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def __init__(self,
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connection=None,
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ephemeral_name=None,
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no_device=False,
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volume_id=None,
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snapshot_id=None,
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status=None,
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attach_time=None,
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delete_on_termination=False,
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size=None,
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volume_type=None,
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iops=None,
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encrypted=None):
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self.connection = connection
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self.ephemeral_name = ephemeral_name
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self.no_device = no_device
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self.volume_id = volume_id
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self.snapshot_id = snapshot_id
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self.status = status
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self.attach_time = attach_time
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self.delete_on_termination = delete_on_termination
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self.size = size
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self.volume_type = volume_type
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self.iops = iops
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self.encrypted = encrypted
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def startElement(self, name, attrs, connection):
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pass
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def endElement(self, name, value, connection):
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lname = name.lower()
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if name == 'volumeId':
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self.volume_id = value
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elif lname == 'virtualname':
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self.ephemeral_name = value
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elif lname == 'nodevice':
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self.no_device = (value == 'true')
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elif lname == 'snapshotid':
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self.snapshot_id = value
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elif lname == 'volumesize':
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self.size = int(value)
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elif lname == 'status':
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self.status = value
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elif lname == 'attachtime':
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self.attach_time = value
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elif lname == 'deleteontermination':
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self.delete_on_termination = (value == 'true')
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elif lname == 'volumetype':
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self.volume_type = value
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elif lname == 'iops':
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self.iops = int(value)
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elif lname == 'encrypted':
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self.encrypted = (value == 'true')
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else:
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setattr(self, name, value)
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# for backwards compatibility
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EBSBlockDeviceType = BlockDeviceType
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class BlockDeviceMapping(dict):
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"""
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Represents a collection of BlockDeviceTypes when creating ec2 instances.
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Example:
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dev_sda1 = BlockDeviceType()
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dev_sda1.size = 100 # change root volume to 100GB instead of default
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bdm = BlockDeviceMapping()
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bdm['/dev/sda1'] = dev_sda1
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reservation = image.run(..., block_device_map=bdm, ...)
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"""
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def __init__(self, connection=None):
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"""
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:type connection: :class:`boto.ec2.EC2Connection`
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:param connection: Optional connection.
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"""
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dict.__init__(self)
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self.connection = connection
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self.current_name = None
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self.current_value = None
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def startElement(self, name, attrs, connection):
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lname = name.lower()
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if lname in ['ebs', 'virtualname']:
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self.current_value = BlockDeviceType(self)
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return self.current_value
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def endElement(self, name, value, connection):
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lname = name.lower()
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if lname in ['device', 'devicename']:
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self.current_name = value
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elif lname in ['item', 'member']:
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self[self.current_name] = self.current_value
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def ec2_build_list_params(self, params, prefix=''):
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pre = '%sBlockDeviceMapping' % prefix
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return self._build_list_params(params, prefix=pre)
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def autoscale_build_list_params(self, params, prefix=''):
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pre = '%sBlockDeviceMappings.member' % prefix
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return self._build_list_params(params, prefix=pre)
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def _build_list_params(self, params, prefix=''):
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i = 1
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for dev_name in self:
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pre = '%s.%d' % (prefix, i)
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params['%s.DeviceName' % pre] = dev_name
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block_dev = self[dev_name]
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if block_dev.ephemeral_name:
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params['%s.VirtualName' % pre] = block_dev.ephemeral_name
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else:
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if block_dev.no_device:
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params['%s.NoDevice' % pre] = ''
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else:
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if block_dev.snapshot_id:
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params['%s.Ebs.SnapshotId' % pre] = block_dev.snapshot_id
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if block_dev.size:
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params['%s.Ebs.VolumeSize' % pre] = block_dev.size
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if block_dev.delete_on_termination:
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params['%s.Ebs.DeleteOnTermination' % pre] = 'true'
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else:
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params['%s.Ebs.DeleteOnTermination' % pre] = 'false'
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if block_dev.volume_type:
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params['%s.Ebs.VolumeType' % pre] = block_dev.volume_type
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if block_dev.iops is not None:
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params['%s.Ebs.Iops' % pre] = block_dev.iops
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# The encrypted flag (even if False) cannot be specified for the root EBS
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# volume.
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if block_dev.encrypted is not None:
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if block_dev.encrypted:
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params['%s.Ebs.Encrypted' % pre] = 'true'
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else:
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params['%s.Ebs.Encrypted' % pre] = 'false'
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i += 1
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