Switch manila to use devstack common functions
for deploying a wsgi app under uwsgi and apache.
This change aims to fulfill the community requirement
for all projects on OpenStack to switch devstack jobs
to deploy control-plane API services under uwsgi with
Apache acting as a front end proxy.
More details in https://governance.openstack.org/tc/goals/pike/deploy-api-in-wsgi.html
We used to deploy with mod_wsgi, but mod_wsgi has many
issues when being used in devstack for development or testing.
Now we leave mod_wsgi as optional and we default to uwsgi.
Implements: bp wsgi-web-servers-support
Depends-On: https://review.openstack.org/#/c/643188/
Change-Id: I12d4c864f2ceb0f3555e32d2dc893e00dbef0d96
bd4673100b