Installs and configure Ganglia monitoring system in a cluster of nodes. How to use it:
In the "Monitored nodes"
- include: ganglia/tasks/ganglia.yml is_client=yes ganglia_gmetad=<MASTER_NODE_NAME_OR_IP>
In the "Ganglia meta Daemon node"
- include: ganglia/tasks/ganglia.yml is_client=no ganglia_gmetad=<MASTER_NODE_NAME_OR_IP>