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  - [nosdn-noha] Meet EPA testcases requirements - pt2

    JIRA: FUEL-385

    After successfully merging patch
    https://gerrit.opnfv.org/gerrit/#/c/61417/ a user can deploy
    os-nosdn-nofeature-noha scenario with numa topologies on compute nodes.

    In order to be able to run the EPA testcases, there are still some
    requirements (see [1]):
      - Testcases expect compute nodes to have hugepages enabled
      - Testcases expect compute nodes to have cgroup-tools package
        installed
      - Testcases expect to have NUMATopologyFilter added to
        enabled_filters in /etc/nova/nova.conf of the controller node

    This patch tries to meet the above requirements. First, it installs
    the cgroup-tools package on compute nodes. Secondly, it overrides the
    default enabled_filters of openstack nova salt package by appending
    NUMATopologyFilter in the end (see [2], [3]).

    Reference links:
    [1] https://docs.google.com/document/d/1sT63M6fnurn4rgYTiUd8ILuXORtx0oHA8Qe-nPeCr2Y/edit
    [2] https://github.com/salt-formulas/salt-formula-nova/blob/master/README.rst#custom-scheduler-filters
    [3] https://github.com/salt-formulas/salt-formula-nova/blob/master/metadata/service/control/single.yml#L20

    Change-Id: I24eb86c53574c80ceb33ecd1bfcb9ef2727d4263
    Signed-off-by: Stamatis Katsaounis <mokats@intracom-telecom.com>