Observability Stack

Docker Compose stack for monitoring: metrics, logs, and visualization.

Stack

Service	Port	Purpose
Grafana	3030	Dashboards
Prometheus	9090	Metrics storage
Loki	3100	Log aggregation
Alloy	12345	Docker log collector
Netdata	19999	System metrics

Setup

1. Clone and configure:

git clone https://github.com/BravePT/observability.git
cd observability
cp .env.example .env

2. Edit .env with your credentials and prometheus/prometheus.yml with your target IPs.

3. Create data directories:

sudo mkdir -p /opt/docker/{grafana/data,prometheus/data,loki/data,netdata/{config,data,cache}}
sudo chown -R 10001:10001 /opt/docker/loki/data

4. Start:

docker compose up -d

Grafana Datasources

After deployment, add:

• Prometheus: http://prometheus:9090
• Loki: http://loki:3100

Configuration

• Prometheus targets: prometheus/prometheus.yml
• Log retention (default 7 days): loki/loki-config.yml → retention_period
• Alloy: Auto-discovers Docker containers and ships logs to Loki

License

MIT