Centralized Logging for Your Homelab: Loki vs Graylog vs the ELK Stack
Metrics tell you a service is dying. Logs tell you why. If you’ve ever SSH’d into three different containers in a row trying to figure out which one actually threw the error that broke your reverse proxy, you already know the gap that centralized logging fills. Uptime checks and Grafana dashboards (covered in the monitoring stack guide) tell you something is wrong and roughly when. Logs tell you what the service was actually doing in the seconds before it went wrong, and without them you’re stuck doing docker logs on one container at a time, hoping you guessed right on the first try. ...