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[Dave Johnston <1331364@xxxxxxxxxxxxxxxxxx>]

Changing the project, as this doesn't belong in the core infrastructure.

** Project changed: openstack-ci => nova

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https://bugs.launchpad.net/bugs/1331364

Title:
  No macs key available in the meta-data store

Status in OpenStack Compute (Nova):
  New

Bug description:
  There is no 'macs' key available in the meta-data store.  This is something provided in the AWS and would be a useful addition to Openstack.
  In AWS on a machine with multiple NICs, the information can be exposed via the meta-store.  This is useful, as it enables machines to automatically configured there network interfaces on bootup. i.e. a script running from rc.local can query the metastore, and create a interface file for each additional NIC.  The information provided also includes cidr-blocks and mac addresses which has been useful when setting up asymmetric routing on some VMs.

  The alternative approach we have used up until now, is to have user-
  data passed to the VM, providing this information, but it means user-
  data must be created for each VM.


  curl http://169.254.169.254/latest/meta-data/network/interfaces/macs/
  02:2c:cd:4b:ed:0b/
  02:86:e3:35:08:c1/
  02:d9:66:42:27:b2/
  02:db:ad:a7:0a:e5/

  This returns the mac address for each interface.  I can then query
  each interface as follows:

  curl http://169.254.169.254/latest/meta-data/network/interfaces/macs/02:2c:cd:4b:ed:0b/
  device-number
  interface-id
  local-hostname
  local-ipv4s
  mac
  owner-id
  security-group-ids
  security-groups
  subnet-id
  subnet-ipv4-cidr-block
  vpc-id
  vpc-ipv4-cidr-block

  curl http://169.254.169.254/latest/meta-data/network/interfaces/macs/02:2c:cd:4b:ed:0b/local-ipv4s
  10.20.1.12

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