Add coreos k8s test

[Corey O'Brien]

There is no gate testing of the k8s template for coreos. We need to add gate testing for this template that does all the same testing as with atomic since the heat template is completely different.

[hongbin (hongbin034)]

Hi David,

Sorry I didn't realize you took this bug, but I have already worked on patches to address the issue. I am going to take this bug. Hope you don't mind.

[David Liu (lzbj)]

Hi Hongbin,

never mind, please go ahead.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/285853
Committed: https://git.openstack.org/cgit/openstack/magnum/commit/?id=c52e5bea06c70e3e6656f9cde9d3c818b4151281
Submitter: Jenkins
Branch: master

commit c52e5bea06c70e3e6656f9cde9d3c818b4151281
Author: Hongbin Lu <email address hidden>
Date: Sun Feb 28 18:21:08 2016 -0500

    Add tox test for k8s coreos bay

    * Add a CoreOS test class TestCoreosKubernetesAPIs
    * Add a CoreOS test environment in tox.ini
    * Create a base class BaseK8sTest and move OS-agnostic k8s testing
      code to that class.
    * Increase the disk size from 8G to 10G for m1.magnum and s1.magnum,
      since CoreOS image requires more disk space to boot.
    * Set os-distro property for CoreOS image.

    Partial-Bug: #1546101
    Change-Id: Ie56a9442ecebe05f39c7669bc950f5a6ca11df33