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https://issues.apache.org/jira/browse/LIBCLOUD-282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13561690#comment-13561690
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joe miller commented on LIBCLOUD-282:
-------------------------------------
Anything else needed for this? I looked at adding tests but they did not really
seem necessary for this as the API seems to more or less silently accept these
params. Also did not see tests for many of the other ex_* kwargs in the
create_node() method.
> 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
> Labels: patch
> Attachments: ec2_block_dev_mappings_0.12.0.patch
>
>
> 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:
> ```
> 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'}]
> ```
> also on github, branch:
> https://github.com/pantheon-systems/libcloud/tree/ec2_block_dev_mappings
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