In order to automate Grafana configuration, this fix automatically
set the InfluxDB datasource. This avoid doing a annoying manual
configuration after Kolla-ansible deployment.
Change-Id: I2b1a63fd371966192f1df0a82cee4711c6324710
Added ansible role to deploy grafana
Added host group for grafana deployment
Co-Authored-By: zhubingbing <zhubingbing10@gmail.com>
Change-Id: I3dec4e8586b6f65fa7de66a48506d1c79de2fe1e
Partially-Implements: Blueprint performance-monitoring