Awesome

Cassandra Package

This is a Kurtosis Starlark Package that allows you to spin up an n node Cassandra Cluster. It spins up 3 nodes by default but you can tweak it

Run

This assumes you have the Kurtosis CLI installed

Simply run

kurtosis run github.com/kurtosis-tech/cassandra-package

If you want to override the number of nodes,

kurtosis run github.com/kurtosis-tech/cassandra-package '{"num_nodes": <required_number_of_nodes>}'

If you want to run this with monitoring on top; use

kurtosis run github.com/kurtosis-tech/cassandra-package '{"monitoring_enabled": true}'

This will spin up local instances of Prometheus and Grafana connected to your Cassandra cluster using a jmx_exporter. If you copy the Grafana URL from the output of enclave run and paste it in your browser; you will be able to interact with metrics and dashboards on Grafana.

admin is the default value for the username & password for Grafana. The dashboard is under dashboards/Cassandra Dashboard.

Using this in your own package

Kurtosis Packages can be used within other Kurtosis Packages, through what we call composition internally. Assuming you want to spin up Cassandra and your own service together you just need to do the following

main_cassandra_module = import_module("github.com/kurtosis-tech/cassandra-package/main.star")

# main.star of your Cassandra + Service package
def run(plan, args):
    plan.print("Spinning up the Cassandra Package")
    # this will spin up cassandra and return the output of the Cassandra package [cassandra-node-0 .. casandra-node-n]
    # any args (including num_datastores) parsed to your package would get passed down to the Cassandra Package
    cassandra_run_output = main_cassandra_module.run(plan, args)