Code in grenade and elsewhere rely on the process/service name
when one runs "ps auxw" and they grep for example "grep -e watcher-api"
to check if the service is running. with uwsgi, let us make sure
we use process name prefix so it is easier to spot the services
and be compatible with code elsewhere that relies on this.
Reference:
https://review.opendev.org/#/c/494531/
Change-Id: I69dbe8840e87a8cb0b2720caa95fb17fb7a30848
c17e96d38b