LAB-002 / Homelab
Homelab Observability Stack
A monitoring layer for home servers that answers useful questions without turning the lab into a wall of noisy dashboards.
BUILD SPECIFICATION
LAB-002- Status
- Operational
- Started
- 2025
- Last updated
- Jun 08, 2025
- Category
- Homelab
- Hardware
- Home server cluster, NAS storage
- Software
- Prometheus, Grafana, Ansible
- Estimated cost
- Built on existing homelab hardware
- Repository
- View source ->
Context
This project brings metrics and service checks from a small homelab into one place. The aim is not maximum telemetry—it is fast diagnosis when something actually breaks.
What I wanted to build
A monitoring layer I could leave running without training myself to ignore it.
System design
- Prometheus scrapes host, container, and service metrics.
- Grafana dashboards answer a small set of operational questions.
- Alert rules target sustained failures and capacity pressure.
- Ansible keeps exporters and configuration consistent across nodes.
Hardware and software
The system currently runs on the existing servers and storage in the homelab. Prometheus, Grafana, and Ansible handle collection, presentation, and repeatable configuration.
Build process
I added one source of telemetry at a time and kept only the panels that answered a real operational question.
Problems encountered
The first alert set was too sensitive. Short spikes generated notifications without pointing to a real failure.
How I solved them
I lengthened evaluation windows and started with service symptoms before adding resource warnings.
Final result
The lab now has a compact view of service health, capacity pressure, and failed checks.
What I learned
The hardest part of monitoring is deciding what deserves attention. I removed several noisy alerts and replaced them with symptoms that reflect real user impact, such as failed DNS resolution or prolonged storage latency.
What I would improve next
I would add better backup verification and document recovery steps beside each important alert.