[dev] [jira] [Created] (LIBCLOUD-282) add support to EC2 NodeDriver for passing Block Device Mappings (for ephemeral instance storage)

["joe miller (JIRA)" <ji...@apache.org>]

joe miller created LIBCLOUD-282:
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             Summary: add support to EC2 NodeDriver for passing Block Device Mappings (for ephemeral instance storage)
                 Key: LIBCLOUD-282
                 URL: https://issues.apache.org/jira/browse/LIBCLOUD-282
             Project: Libcloud
          Issue Type: Improvement
          Components: Compute
    Affects Versions: 0.11.2
            Reporter: joe miller


When creating an EC2 node that utilizes EBS-backed root storage the ephemeral instance storage disks are not available unless explicitly requested by including BlockDeviceMappings in the call to RunInstances.

This patch adds support for passing an array of BlockDeviceMappings to the EC2NodeDriver's create_node() function using the ex_blockdevicemappings kwarg.

Example:

{code}
ec2_ephemeral_mappings = [{'DeviceName': '/dev/sdb', 'VirtualName': 'ephemeral0'},
                                {'DeviceName': '/dev/sdc', 'VirtualName': 'ephemeral1'},
                                {'DeviceName': '/dev/sdd', 'VirtualName': 'ephemeral2'}]

ec2.create_node(name=name, image=image, size=size, ex_blockdevicemappings=ec2_ephemeral_mappings)

              [{'DeviceName': '/dev/sdb', 'VirtualName': 'ephemeral0'}]
{code}

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