Setup a local laboratory 🧪 to explore Fluenbit and Loki

Start services:

docker-compose up -d

This starts the following services:

• Grafana: local instance of Grafana exposed at http://localhost:3000
  • This instance is configured with a Loki datasource named "Loki"
• Fluentbit: an instance of Fluentbit configured with the following config
• Promtail: an instance of Promtail configured to scrape logs from Docker containers. Use label container to query for logs of each container.

Fluentbit is configured to tail any *.log file written into test_logs on the host. Simply do:

echo '{"message": "lorem ipsum" "foo":"bar"}' >> test_logs/file.log

Or manually create/edit files under test_logs directory

• Access Grafana on http://localhost:3000/explore
• Query for logs whose label job is fluentbit. E.g. LogQL query {job="fluentbit"}

• Based off https://github.com/grafana/loki/tree/main/examples/getting-started