[Bug 1510345] Re: [SRU] Cloud Images do not bring up networking w/ certain virtual NICs due to device naming rules

[Mian]

Some of the newest Amazon EC2 Published AMIs at [1], for example,
ubuntu-wily-15.10-amd64-server-20151219 AMIs: ami-38796759 (us-west-2) &
ami-94683ffe (us-east-1)  only successfully boot for instance types that
don't have enhanced networking enabled
(http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/enhanced-
networking.html).

So attempting to launch a c4.xlarge for example will fail/hung with the
following logged:

[ 63.181996] cloud-init[932]: ci-info: +++++++++++++++++++++++++++++++++++++++Net device info+++++++++++++++++++++++++++++++++++++++ 
[ 63.182482] cloud-init[932]: ci-info: +--------+-------+------------------------------+---------------+-------+-------------------+ 
[ 63.182886] cloud-init[932]: ci-info: | Device | Up | Address | Mask | Scope | Hw-Address | 
[ 63.183281] cloud-init[932]: ci-info: +--------+-------+------------------------------+---------------+-------+-------------------+ 
[ 63.183664] cloud-init[932]: ci-info: | lo | True | 127.0.0.1 | 255.0.0.0 | . | . | 
[ 63.184172] cloud-init[932]: ci-info: | lo | True | ::1/128 | . | host | . | 
[ 63.184482] cloud-init[932]: ci-info: | lxcbr0 | True | 10.0.3.1 | 255.255.255.0 | . | 5a:27:38:06:7c:a3 | 
[ 63.184871] cloud-init[932]: ci-info: | lxcbr0 | True | fe80::5827:38ff:fe06:7ca3/64 | . | link | 5a:27:38:06:7c:a3 | 
[ 63.185163] cloud-init[932]: ci-info: | ens3 | False | . | . | . | 0a:f9:a1:59:f3:1b | 
[ 63.185335] cloud-init[932]: ci-info: +--------+-------+------------------------------+---------------+-------+-------------------+ 
[ 63.185502] cloud-init[932]: ci-info: +++++++++++++++++++++++++++Route IPv4 info+++++++++++++++++++++++++++ 
[ 63.186068] cloud-init[932]: ci-info: +-------+-------------+---------+---------------+-----------+-------+ 
[ 63.186556] cloud-init[932]: ci-info: | Route | Destination | Gateway | Genmask | Interface | Flags | 
[ 63.186997] cloud-init[932]: ci-info: +-------+-------------+---------+---------------+-----------+-------+ 
[ 63.187380] cloud-init[932]: ci-info: | 0 | 10.0.3.0 | 0.0.0.0 | 255.255.255.0 | lxcbr0 | U | 
[ 63.187770] cloud-init[932]: ci-info: +-------+-------------+---------+---------------+-----------+-------+ 
[ 63.188186] cloud-init[932]: 2015-12-24 04:57:59,899 - url_helper.py[WARNING]: Calling 'http://169.254.169.254/2009-04-04/meta-data/instance-id' failed [0/120s]: request error [('Connection aborted.', OSError(101, 'Network is unreachable'))] 

[1] http://cloud-images.ubuntu.com/releases/wily/release/

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https://bugs.launchpad.net/bugs/1510345

Title:
  [SRU] Cloud Images do not bring up networking w/ certain virtual NICs
  due to device naming rules

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