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85 lines
3 KiB
Python
85 lines
3 KiB
Python
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# Copyright (c) 2006-2008 Mitch Garnaat http://garnaat.org/
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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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"""
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This module provides an interface to the Elastic Compute Cloud (EC2)
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service from AWS.
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"""
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from boto.ec2.connection import EC2Connection
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from boto.regioninfo import RegionInfo, get_regions, load_regions
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from boto.regioninfo import connect
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RegionData = load_regions().get('ec2', {})
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def regions(**kw_params):
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"""
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Get all available regions for the EC2 service.
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You may pass any of the arguments accepted by the EC2Connection
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object's constructor as keyword arguments and they will be
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passed along to the EC2Connection object.
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:rtype: list
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:return: A list of :class:`boto.ec2.regioninfo.RegionInfo`
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"""
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return get_regions('ec2', connection_cls=EC2Connection)
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def connect_to_region(region_name, **kw_params):
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"""
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Given a valid region name, return a
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:class:`boto.ec2.connection.EC2Connection`.
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Any additional parameters after the region_name are passed on to
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the connect method of the region object.
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:type: str
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:param region_name: The name of the region to connect to.
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:rtype: :class:`boto.ec2.connection.EC2Connection` or ``None``
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:return: A connection to the given region, or None if an invalid region
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name is given
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"""
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if 'region' in kw_params and isinstance(kw_params['region'], RegionInfo)\
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and region_name == kw_params['region'].name:
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return EC2Connection(**kw_params)
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return connect('ec2', region_name,
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connection_cls=EC2Connection, **kw_params)
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def get_region(region_name, **kw_params):
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"""
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Find and return a :class:`boto.ec2.regioninfo.RegionInfo` object
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given a region name.
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:type: str
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:param: The name of the region.
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:rtype: :class:`boto.ec2.regioninfo.RegionInfo`
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:return: The RegionInfo object for the given region or None if
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an invalid region name is provided.
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"""
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for region in regions(**kw_params):
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if region.name == region_name:
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return region
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return None
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