Run ironic api under uwsgi

[Vasyl Saienko]

Main openstack services are launched under uwsgi now. We need to do the same for Ironic.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/507011

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.openstack.org/507067

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/507011
Committed: https://git.openstack.org/cgit/openstack/ironic/commit/?id=61b81d0c735f7d4ccbde4f4c818e4a7320ea544a
Submitter: Zuul
Branch: master

commit 61b81d0c735f7d4ccbde4f4c818e4a7320ea544a
Author: Vasyl Saienko <email address hidden>
Date: Mon Sep 25 10:44:09 2017 +0300

    Add uWSGI support

    This patch implements uWSGI support for ironic API service.
    ironic/api/app.wsgi is deprecated in favor of pbr generated
    ironic-api-wsgi

    Co-Authored-By: anascko <email address hidden>

    Change-Id: Ieb68c1042e31b77f9a549fd90afe31a65008deca
    Closes-Bug: #1719260
    Closes-Bug: #1668966

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/ironic 10.0.0 release.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/507067
Committed: https://git.openstack.org/cgit/openstack/ironic/commit/?id=b27396db660e1fbef82f5dc20c7fd74d09fa9598
Submitter: Zuul
Branch: master

commit b27396db660e1fbef82f5dc20c7fd74d09fa9598
Author: Vasyl Saienko <email address hidden>
Date: Mon Sep 25 14:37:45 2017 +0300

    [devstack] Switch ironic to uWSGI

    This patch switches ironic API to run under uwsgi,
    and drops support for running ironic API under mod_wsgi
    from ironic's devstack plugin.

    It also effectively moves all jobs except grenade ones to
    run ironic-api under UWSGI as we start to honor the devstack's
    ENABLE_HTTPD_MOD_WSGI_SERVICES variable (which is True by default).

    The new variable in devstack plugin to toggle deployment with uwsgi
    is IRONIC_USE_WSGI, which defaults to (now confusingly named)
    IRONIC_USE_MOD_WSGI for backward compatibility.

    Related-Bug: #1719260
    Co-Authored-By: anascko <email address hidden>

    Change-Id: I9ef3aa48db6efe8e2216af785cc13fdb7f754a02