HOWTO: Deploy Observability Stack (Prometheus/Grafana/Loki) in VLAN 11¶
Deploys a Prometheus, Grafana, and Loki observability stack in VLAN 11 — the dedicated observability segment. Covers VM provisioning via Terraform IPAM, Prometheus scrape configuration with per-environment labels across dev, staging, and prod, Grafana dashboard wiring with environment filtering, and Loki for centralised log correlation. Firewall rules from ADR-0103 are validated throughout.
What this covers:
- Prometheus scrape configuration with per-environment labelling across VLANs 20/30/40
- Grafana provisioning with environment-variable dashboards and Loki data source
- Inter-VLAN firewall validation for observability scrape paths