Name	Name	Last commit message	Last commit date
parent directory ..
README.md	README.md
docker-compose.yml	docker-compose.yml
mosquitto.conf	mosquitto.conf
prometheus.yml	prometheus.yml

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LoadDensity local lab

A docker-compose file that brings up every target the examples need:

Service	Port	Purpose
`httpbin`	`:8080`	Generic HTTP echo server.
`mosquitto`	`:1883`	MQTT broker for `examples/mqtt_pubsub.py`.
`redis`	`:6379`	Redis for `examples/redis_load.json`.
`kafka`	`:9092`	Single-broker Kafka cluster (KRaft mode).
`prometheus`	`:9090`	Scrapes the LoadDensity Prometheus exporter on the host.

Quick start

docker compose -f docker/docker-compose.yml up -d
# … run examples …
docker compose -f docker/docker-compose.yml down -v

The Prometheus job scrapes host.docker.internal:9646, which is the default port of start_prometheus_exporter. On Linux without host.docker.internal, point the job at your host IP instead.
Kafka uses KRaft (no Zookeeper) and exposes a single broker — good enough for examples, not for production load.
mosquitto.conf allows anonymous connections; tighten before exposing the broker.