feat: comprehensive observability stack

- Add restic_backups and mattermost scrape jobs to Prometheus config
- Add UnPoller deployment+service+secret for UniFi metrics (unpoller.yaml)
- Add unifi scrape job targeting unpoller in-cluster
- Add 4 Grafana dashboards as NixOS-managed etc files on hosea:
  - system-health: CPU, memory, disk, network per host
  - backup-health: restic backup freshness and duration
  - kubernetes: pod counts, restart rates, node resources
  - network: DNS queries, DHCP leases, UniFi ports, ping latency
- Add grafana-api-token agenix secret placeholder on hosea
- Open firewall ports 9100/9427/9558 for prometheus exporters in baseline.nix

This commit is contained in:

root

2026-03-25 09:23:31 -05:00

parent 0050f866bf

commit ab6e1d24fe

6 changed files with 353 additions and 0 deletions

									
										manifests/monitoring/kustomization.yaml
									
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				@@ -9,3 +9,4 @@ resources:

				  - deployment.yaml

				  - service.yaml

				  - ingress.yaml

				  - unpoller.yaml