itzg / try-cortex

This Docker composition implements the guide for running Cortex with Cassandra with a single-node Cassandra container and a single-node Cortex container. It also includes Prometheus for some starter data scraping and Grafana for visualization of Cortex.

Quick start

Start up Cassandra

docker-compose up -d cassandra

Repeat the following until cassandra service shows "Up (healthy)" in the state column:

docker-compose ps

Create Cortex keyspace in Cassandra:

docker-compose exec cassandra \
  cqlsh -e "CREATE KEYSPACE cortex WITH replication = {'class':'SimpleStrategy', 'replication_factor' : 1};"

Start up remainder of services:

docker-compose up -d

Logs of all services can be followed using:

docker-compose logs -f

Access Grafana from a browser at http://localhost:3000/, where the default login is admin/admin. You can always "change" the new password to be "admin" to keep things simple for local testing.

A Cortex datasource is pre-create and Prometheus is initially configured to scrape itself and Cortex, so you can start by creating a new dashboard or exploring the data.

For example:

Tear down

The following will remove the containers and volumes:

docker-compose down -v