annotate env/lib/python3.7/site-packages/boto/ec2/volume.py @ 0:26e78fe6e8c4 draft

"planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
author shellac
date Sat, 02 May 2020 07:14:21 -0400
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1 # Copyright (c) 2006-2012 Mitch Garnaat http://garnaat.org/
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2 # Copyright (c) 2010, Eucalyptus Systems, Inc.
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3 # Copyright (c) 2012 Amazon.com, Inc. or its affiliates. All Rights Reserved
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4 #
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5 # Permission is hereby granted, free of charge, to any person obtaining a
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6 # copy of this software and associated documentation files (the
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7 # "Software"), to deal in the Software without restriction, including
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8 # without limitation the rights to use, copy, modify, merge, publish, dis-
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9 # tribute, sublicense, and/or sell copies of the Software, and to permit
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10 # persons to whom the Software is furnished to do so, subject to the fol-
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11 # lowing conditions:
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12 #
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13 # The above copyright notice and this permission notice shall be included
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14 # in all copies or substantial portions of the Software.
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15 #
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16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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17 # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
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18 # ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
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19 # SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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20 # WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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22 # IN THE SOFTWARE.
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23
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24 """
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25 Represents an EC2 Elastic Block Storage Volume
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26 """
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27 from boto.resultset import ResultSet
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28 from boto.ec2.tag import Tag
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29 from boto.ec2.ec2object import TaggedEC2Object
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30
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31
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32 class Volume(TaggedEC2Object):
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33 """
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34 Represents an EBS volume.
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35
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36 :ivar id: The unique ID of the volume.
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37 :ivar create_time: The timestamp of when the volume was created.
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38 :ivar status: The status of the volume.
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39 :ivar size: The size (in GB) of the volume.
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40 :ivar snapshot_id: The ID of the snapshot this volume was created
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41 from, if applicable.
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42 :ivar attach_data: An AttachmentSet object.
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43 :ivar zone: The availability zone this volume is in.
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44 :ivar type: The type of volume (standard or consistent-iops)
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45 :ivar iops: If this volume is of type consistent-iops, this is
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46 the number of IOPS provisioned (10-300).
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47 :ivar encrypted: True if this volume is encrypted.
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48 """
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49
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50 def __init__(self, connection=None):
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51 super(Volume, self).__init__(connection)
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52 self.id = None
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53 self.create_time = None
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54 self.status = None
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55 self.size = None
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56 self.snapshot_id = None
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57 self.attach_data = None
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58 self.zone = None
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59 self.type = None
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60 self.iops = None
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61 self.encrypted = None
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62
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63 def __repr__(self):
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64 return 'Volume:%s' % self.id
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65
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66 def startElement(self, name, attrs, connection):
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67 retval = super(Volume, self).startElement(name, attrs, connection)
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68 if retval is not None:
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69 return retval
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70 if name == 'attachmentSet':
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71 self.attach_data = AttachmentSet()
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72 return self.attach_data
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73 elif name == 'tagSet':
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74 self.tags = ResultSet([('item', Tag)])
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75 return self.tags
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76 else:
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77 return None
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78
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79 def endElement(self, name, value, connection):
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80 if name == 'volumeId':
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81 self.id = value
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82 elif name == 'createTime':
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83 self.create_time = value
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84 elif name == 'status':
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85 if value != '':
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86 self.status = value
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87 elif name == 'size':
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88 self.size = int(value)
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89 elif name == 'snapshotId':
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90 self.snapshot_id = value
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91 elif name == 'availabilityZone':
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92 self.zone = value
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93 elif name == 'volumeType':
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94 self.type = value
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95 elif name == 'iops':
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96 self.iops = int(value)
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97 elif name == 'encrypted':
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98 self.encrypted = (value.lower() == 'true')
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99 else:
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100 setattr(self, name, value)
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101
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102 def _update(self, updated):
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103 self.__dict__.update(updated.__dict__)
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104
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105 def update(self, validate=False, dry_run=False):
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106 """
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107 Update the data associated with this volume by querying EC2.
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108
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109 :type validate: bool
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110 :param validate: By default, if EC2 returns no data about the
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111 volume the update method returns quietly. If
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112 the validate param is True, however, it will
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113 raise a ValueError exception if no data is
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114 returned from EC2.
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115 """
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116 # Check the resultset since Eucalyptus ignores the volumeId param
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117 unfiltered_rs = self.connection.get_all_volumes(
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118 [self.id],
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119 dry_run=dry_run
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120 )
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121 rs = [x for x in unfiltered_rs if x.id == self.id]
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122 if len(rs) > 0:
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123 self._update(rs[0])
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124 elif validate:
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125 raise ValueError('%s is not a valid Volume ID' % self.id)
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126 return self.status
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127
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128 def delete(self, dry_run=False):
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129 """
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130 Delete this EBS volume.
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131
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132 :rtype: bool
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133 :return: True if successful
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134 """
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135 return self.connection.delete_volume(self.id, dry_run=dry_run)
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136
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137 def attach(self, instance_id, device, dry_run=False):
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138 """
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139 Attach this EBS volume to an EC2 instance.
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140
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141 :type instance_id: str
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142 :param instance_id: The ID of the EC2 instance to which it will
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143 be attached.
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144
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145 :type device: str
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146 :param device: The device on the instance through which the
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147 volume will be exposed (e.g. /dev/sdh)
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148
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149 :rtype: bool
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150 :return: True if successful
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151 """
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152 return self.connection.attach_volume(
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153 self.id,
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154 instance_id,
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155 device,
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156 dry_run=dry_run
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157 )
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158
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159 def detach(self, force=False, dry_run=False):
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160 """
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161 Detach this EBS volume from an EC2 instance.
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162
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163 :type force: bool
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164 :param force: Forces detachment if the previous detachment
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165 attempt did not occur cleanly. This option can lead to
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166 data loss or a corrupted file system. Use this option only
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167 as a last resort to detach a volume from a failed
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168 instance. The instance will not have an opportunity to
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169 flush file system caches nor file system meta data. If you
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170 use this option, you must perform file system check and
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171 repair procedures.
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172
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173 :rtype: bool
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174 :return: True if successful
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175 """
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176 instance_id = None
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177 if self.attach_data:
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178 instance_id = self.attach_data.instance_id
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179 device = None
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180 if self.attach_data:
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181 device = self.attach_data.device
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182 return self.connection.detach_volume(
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183 self.id,
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184 instance_id,
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185 device,
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186 force,
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187 dry_run=dry_run
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188 )
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189
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190 def create_snapshot(self, description=None, dry_run=False):
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191 """
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192 Create a snapshot of this EBS Volume.
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193
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194 :type description: str
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195 :param description: A description of the snapshot.
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196 Limited to 256 characters.
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197
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198 :rtype: :class:`boto.ec2.snapshot.Snapshot`
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199 :return: The created Snapshot object
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200 """
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201 return self.connection.create_snapshot(
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202 self.id,
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203 description,
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204 dry_run=dry_run
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205 )
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206
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207 def volume_state(self):
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208 """
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209 Returns the state of the volume. Same value as the status attribute.
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210 """
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211 return self.status
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212
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213 def attachment_state(self):
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214 """
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215 Get the attachment state.
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216 """
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217 state = None
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218 if self.attach_data:
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219 state = self.attach_data.status
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220 return state
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221
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222 def snapshots(self, owner=None, restorable_by=None, dry_run=False):
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223 """
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224 Get all snapshots related to this volume. Note that this requires
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225 that all available snapshots for the account be retrieved from EC2
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226 first and then the list is filtered client-side to contain only
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227 those for this volume.
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228
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229 :type owner: str
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230 :param owner: If present, only the snapshots owned by the
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231 specified user will be returned. Valid values are:
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232
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233 * self
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234 * amazon
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235 * AWS Account ID
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236
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237 :type restorable_by: str
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238 :param restorable_by: If present, only the snapshots that
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239 are restorable by the specified account id will be returned.
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240
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241 :rtype: list of L{boto.ec2.snapshot.Snapshot}
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242 :return: The requested Snapshot objects
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243
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244 """
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245 rs = self.connection.get_all_snapshots(
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246 owner=owner,
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247 restorable_by=restorable_by,
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248 dry_run=dry_run
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249 )
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250 mine = []
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251 for snap in rs:
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252 if snap.volume_id == self.id:
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253 mine.append(snap)
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254 return mine
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255
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256
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257 class AttachmentSet(object):
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258 """
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259 Represents an EBS attachmentset.
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260
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261 :ivar id: The unique ID of the volume.
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262 :ivar instance_id: The unique ID of the attached instance
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263 :ivar status: The status of the attachment
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264 :ivar attach_time: Attached since
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265 :ivar device: The device the instance has mapped
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266 """
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267 def __init__(self):
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268 self.id = None
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269 self.instance_id = None
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270 self.status = None
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271 self.attach_time = None
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272 self.device = None
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273
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274 def __repr__(self):
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275 return 'AttachmentSet:%s' % self.id
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276
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277 def startElement(self, name, attrs, connection):
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278 pass
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279
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280 def endElement(self, name, value, connection):
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281 if name == 'volumeId':
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282 self.id = value
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283 elif name == 'instanceId':
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284 self.instance_id = value
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285 elif name == 'status':
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286 self.status = value
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287 elif name == 'attachTime':
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288 self.attach_time = value
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289 elif name == 'device':
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290 self.device = value
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291 else:
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292 setattr(self, name, value)
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293
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294
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295 class VolumeAttribute(object):
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296 def __init__(self, parent=None):
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297 self.id = None
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298 self._key_name = None
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299 self.attrs = {}
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300
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301 def startElement(self, name, attrs, connection):
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302 if name == 'autoEnableIO':
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303 self._key_name = name
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304 return None
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305
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306 def endElement(self, name, value, connection):
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307 if name == 'value':
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308 if value.lower() == 'true':
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309 self.attrs[self._key_name] = True
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310 else:
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311 self.attrs[self._key_name] = False
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312 elif name == 'volumeId':
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313 self.id = value
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314 else:
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315 setattr(self, name, value)