With this change masakari-monitors will be installed on hosts
which are in group masakari-monitor (supposed to be nova compute hosts)
hostmonitor depends on pacemaker with corosync, which are implemented by
https://github.com/mit-scripts/ansible-pacemaker-corosync
Masakari api/engine config was simplified and unneccesary defaults
were removed from it.
Role now uses default ``systemd_service`` role for systemctl configuration
Co-Authored-By: Jesse Pretorius <jesse.pretorius@rackspace.co.uk>
Implements: blueprint masakari-ansible-plugin
Change-Id: I334877c0111a45d3f3a74e7f56931786f4301713