Prometheus

a large alarm bell ringing between the robot and the boy in the cap, with the boy holding the bell's unplugged power cord and plug in his hands

Is Anyone Knocking? A Security Pass on My Homelab

I set out to answer a simple worry — is someone trying to get into my server? — and found the scarier question underneath it: if they did, would I even know? My front door was solid. The inside had an alarm with the wires cut, a web terminal sitting on the open internet, and no floor under the blast radius. Here’s the audit, and the three things I fixed.

the boy in the cap holding a tablet showing four small line charts, connected by a single cable plugged into a port on the robot's chest

📈 Observing Local LLM Inference: llama.cpp's Built-in Prometheus Metrics

llama.cpp’s inference server ships a /metrics endpoint. One flag, Prometheus scraping, a Grafana dashboard loaded via ConfigMap sidecar — AI observability without a proxy layer.