From the monitoring node, you can point your browser to http://localhost/cacti via a local browser. Use the following credentials to access the administrator account:
username: admin
password: admin
Components

component-cacti
This component is associated with the installer nodegroup type and will have cacti and cacti monitoring daemon installed.

component-cacti-monitored-node
This component is associated with the compute nodegroup type and will have snmp configured and installed.