update ansible-pull-script.sh to send a notification to grafana
update ansible-pull-script.sh to send a notification to grafana

technically it's:

 - a curl POST to the opentsdb input on influxdb (which grafana reads
   from)
 - we send timestamp, $(hostname -s) and $(domainname) and
   succeeded/failed

CSC-IT-Center-for-Science/ansible-role-fgci-install