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Important Notes

  • Backwards-incompatible filter changes in the latest 2011 EC2 APIs

    In the latest 2011 EC2 APIs all security groups are assigned a unique identifier (sg-*). As a consequence, some existing filters which used to take the group name now require the group id instead:

    1. group-id filter in DescribeInstances (ie get_all_instances())

      To filter by group name you must instead use the group-name filter

    2. filter in DescribeSpotInstanceRequests (ie get_all_spot_instance_requests())

      Unfortunately for now, it is not possible to filter spot instance requests by group name; the security group id must be used instead.

    This new security group id can be found in the id attribute of a boto SecurityGroup instance.