File Manager

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# Copyright (c) 2006-2012 Mitch Garnaat http://garnaat.org/
# Copyright (c) 2010, Eucalyptus Systems, Inc.
# 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.

"""
Represents an EC2 Elastic Block Storage Volume
"""
from boto.resultset import ResultSet
from boto.ec2.tag import Tag
from boto.ec2.ec2object import TaggedEC2Object

class Volume(TaggedEC2Object):
    """
    Represents an EBS volume.

:ivar id: The unique ID of the volume.
    :ivar create_time: The timestamp of when the volume was created.
    :ivar status: The status of the volume.
    :ivar size: The size (in GB) of the volume.
    :ivar snapshot_id: The ID of the snapshot this volume was created
        from, if applicable.
    :ivar attach_data: An AttachmentSet object.
    :ivar zone: The availability zone this volume is in.
    :ivar type: The type of volume (standard or consistent-iops)
    :ivar iops: If this volume is of type consistent-iops, this is
        the number of IOPS provisioned (10-300).
    :ivar encrypted: True if this volume is encrypted.
    """

def __init__(self, connection=None):
        super(Volume, self).__init__(connection)
        self.id = None
        self.create_time = None
        self.status = None
        self.size = None
        self.snapshot_id = None
        self.attach_data = None
        self.zone = None
        self.type = None
        self.iops = None
        self.encrypted = None

def __repr__(self):
        return 'Volume:%s' % self.id

def startElement(self, name, attrs, connection):
        retval = super(Volume, self).startElement(name, attrs, connection)
        if retval is not None:
            return retval
        if name == 'attachmentSet':
            self.attach_data = AttachmentSet()
            return self.attach_data
        elif name == 'tagSet':
            self.tags = ResultSet([('item', Tag)])
            return self.tags
        else:
            return None

def endElement(self, name, value, connection):
        if name == 'volumeId':
            self.id = value
        elif name == 'createTime':
            self.create_time = value
        elif name == 'status':
            if value != '':
                self.status = value
        elif name == 'size':
            self.size = int(value)
        elif name == 'snapshotId':
            self.snapshot_id = value
        elif name == 'availabilityZone':
            self.zone = value
        elif name == 'volumeType':
            self.type = value
        elif name == 'iops':
            self.iops = int(value)
        elif name == 'encrypted':
            self.encrypted = (value.lower() == 'true')
        else:
            setattr(self, name, value)

def _update(self, updated):
        self.__dict__.update(updated.__dict__)

def update(self, validate=False, dry_run=False):
        """
        Update the data associated with this volume by querying EC2.

:type validate: bool
        :param validate: By default, if EC2 returns no data about the
                         volume 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.
        """
        # Check the resultset since Eucalyptus ignores the volumeId param
        unfiltered_rs = self.connection.get_all_volumes(
            [self.id],
            dry_run=dry_run
        )
        rs = [x for x in unfiltered_rs if x.id == self.id]
        if len(rs) > 0:
            self._update(rs[0])
        elif validate:
            raise ValueError('%s is not a valid Volume ID' % self.id)
        return self.status

def delete(self, dry_run=False):
        """
        Delete this EBS volume.

:rtype: bool
        :return: True if successful
        """
        return self.connection.delete_volume(self.id, dry_run=dry_run)

def attach(self, instance_id, device, dry_run=False):
        """
        Attach this EBS volume to an EC2 instance.

:type instance_id: str
        :param instance_id: The ID of the EC2 instance to which it will
                            be attached.

:type device: str
        :param device: The device on the instance through which the
                       volume will be exposed (e.g. /dev/sdh)

:rtype: bool
        :return: True if successful
        """
        return self.connection.attach_volume(
            self.id,
            instance_id,
            device,
            dry_run=dry_run
        )

def detach(self, force=False, dry_run=False):
        """
        Detach this EBS volume from an EC2 instance.

:type force: bool
        :param force: Forces detachment if the previous detachment
            attempt did not occur cleanly.  This option can lead to
            data loss or a corrupted file system. Use this option only
            as a last resort to detach a volume from a failed
            instance. The instance will not have an opportunity to
            flush file system caches nor file system meta data. If you
            use this option, you must perform file system check and
            repair procedures.

:rtype: bool
        :return: True if successful
        """
        instance_id = None
        if self.attach_data:
            instance_id = self.attach_data.instance_id
        device = None
        if self.attach_data:
            device = self.attach_data.device
        return self.connection.detach_volume(
            self.id,
            instance_id,
            device,
            force,
            dry_run=dry_run
        )

def create_snapshot(self, description=None, dry_run=False):
        """
        Create a snapshot of this EBS Volume.

:type description: str
        :param description: A description of the snapshot.
            Limited to 256 characters.

:rtype: :class:`boto.ec2.snapshot.Snapshot`
        :return: The created Snapshot object
        """
        return self.connection.create_snapshot(
            self.id,
            description,
            dry_run=dry_run
        )

def volume_state(self):
        """
        Returns the state of the volume.  Same value as the status attribute.
        """
        return self.status

def attachment_state(self):
        """
        Get the attachment state.
        """
        state = None
        if self.attach_data:
            state = self.attach_data.status
        return state

def snapshots(self, owner=None, restorable_by=None, dry_run=False):
        """
        Get all snapshots related to this volume.  Note that this requires
        that all available snapshots for the account be retrieved from EC2
        first and then the list is filtered client-side to contain only
        those for this volume.

:type owner: str
        :param owner: If present, only the snapshots owned by the
            specified user will be returned.  Valid values are:

* self
            * amazon
            * AWS Account ID

:type restorable_by: str
        :param restorable_by: If present, only the snapshots that
            are restorable by the specified account id will be returned.

:rtype: list of L{boto.ec2.snapshot.Snapshot}
        :return: The requested Snapshot objects

"""
        rs = self.connection.get_all_snapshots(
            owner=owner,
            restorable_by=restorable_by,
            dry_run=dry_run
        )
        mine = []
        for snap in rs:
            if snap.volume_id == self.id:
                mine.append(snap)
        return mine

class AttachmentSet(object):
    """
    Represents an EBS attachmentset.

:ivar id: The unique ID of the volume.
    :ivar instance_id: The unique ID of the attached instance
    :ivar status: The status of the attachment
    :ivar attach_time: Attached since
    :ivar device: The device the instance has mapped
    """
    def __init__(self):
        self.id = None
        self.instance_id = None
        self.status = None
        self.attach_time = None
        self.device = None

def __repr__(self):
        return 'AttachmentSet:%s' % self.id

def startElement(self, name, attrs, connection):
        pass

def endElement(self, name, value, connection):
        if name == 'volumeId':
            self.id = value
        elif name == 'instanceId':
            self.instance_id = value
        elif name == 'status':
            self.status = value
        elif name == 'attachTime':
            self.attach_time = value
        elif name == 'device':
            self.device = value
        else:
            setattr(self, name, value)

class VolumeAttribute(object):
    def __init__(self, parent=None):
        self.id = None
        self._key_name = None
        self.attrs = {}

def startElement(self, name, attrs, connection):
        if name == 'autoEnableIO':
            self._key_name = name
        return None

def endElement(self, name, value, connection):
        if name == 'value':
            if value.lower() == 'true':
                self.attrs[self._key_name] = True
            else:
                self.attrs[self._key_name] = False
        elif name == 'volumeId':
            self.id = value
        else:
            setattr(self, name, value)

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🐍__init__.py	py	3 KB	2025-06-20 07:13	✏️ 👁️
🐍address.py	py	5.2 KB	2025-06-20 07:13	✏️ 👁️
🐍attributes.py	py	2.6 KB	2025-06-20 07:13	✏️ 👁️
🐍blockdevicemapping.py	py	6.2 KB	2025-06-20 07:13	✏️ 👁️
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🐍buyreservation.py	py	3.7 KB	2025-06-20 07:13	✏️ 👁️
🐍connection.py	py	174.8 KB	2025-06-20 07:13	✏️ 👁️
🐍ec2object.py	py	5.4 KB	2025-06-20 07:13	✏️ 👁️
🐍group.py	py	1.5 KB	2025-06-20 07:13	✏️ 👁️
🐍image.py	py	16 KB	2025-06-20 07:13	✏️ 👁️
🐍instance.py	py	22.9 KB	2025-06-20 07:13	✏️ 👁️
🐍instanceinfo.py	py	1.8 KB	2025-06-20 07:13	✏️ 👁️
🐍instancestatus.py	py	6.7 KB	2025-06-20 07:13	✏️ 👁️
🐍instancetype.py	py	2.2 KB	2025-06-20 07:13	✏️ 👁️
🐍keypair.py	py	4.2 KB	2025-06-20 07:13	✏️ 👁️
🐍launchspecification.py	py	3.7 KB	2025-06-20 07:13	✏️ 👁️
🐍networkinterface.py	py	13.3 KB	2025-06-20 07:13	✏️ 👁️
🐍placementgroup.py	py	2 KB	2025-06-20 07:13	✏️ 👁️
🐍regioninfo.py	py	1.5 KB	2025-06-20 07:13	✏️ 👁️
🐍reservedinstance.py	py	12.7 KB	2025-06-20 07:13	✏️ 👁️
🐍securitygroup.py	py	14.3 KB	2025-06-20 07:13	✏️ 👁️
🐍snapshot.py	py	7.4 KB	2025-06-20 07:13	✏️ 👁️
🐍spotdatafeedsubscription.py	py	2.4 KB	2025-06-20 07:13	✏️ 👁️
🐍spotinstancerequest.py	py	7.1 KB	2025-06-20 07:13	✏️ 👁️
🐍spotpricehistory.py	py	2 KB	2025-06-20 07:13	✏️ 👁️
🐍tag.py	py	3 KB	2025-06-20 07:13	✏️ 👁️
🐍volume.py	py	10.2 KB	2025-06-20 07:13	✏️ 👁️
🐍volumestatus.py	py	6.2 KB	2025-06-20 07:13	✏️ 👁️
🐍zone.py	py	2.5 KB	2025-06-20 07:13	✏️ 👁️

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