Field notes

Field notes from infrastructure, security and automation work

Technical decisions, implementation notes and lessons worth keeping. Topics can overlap because real systems rarely stay inside one category.

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GuideInfrastructure Self-Hosting #Observability #Prometheus #Loki #Grafana #Kubernetes #Reliability

What watches the platform: Prometheus, Loki and Grafana

Observability pipeline: a forwarding Prometheus and Promtail on the apps cluster send metrics and logs over the private network to Prometheus, Loki and Grafana on the tooling cluster

How metrics and logs travel from the application clusters to the tooling clusters, what the Grafana dashboards show, and how backup freshness gets checked twice a day.

Orthrus IT12 August 2026