The ScyllaDB Monitoring Stack is used to monitor ScyllaDB. It is container-based and has dashboards and some scripts to set up the containers.
Before using it, make sure you have docker enabled. Check the documentation for installation and configuration details.
You can ask questions and discuss ScyllaDB Monitoring in the ScyllaDB community forum and on the Slack channel.
The Monitoring lesson on ScyllaDB University is another useful resource, and it includes a hands-on example.