Scrape traefik gateway metrics into VictoriaMetrics (#397)

## Why

Both traefik instances (traefik-internal/traefik-external, chart 40.0.0, image v3.7.0) already expose prometheus metrics on container port `metrics` (9100), but nothing scrapes them — VictoriaMetrics has no traefik series (verified empty). The observability VMAgent runs with selectAllByDefault and consumes VM*Scrape CRs only, so a VMPodScrape is all that is needed.

## Changes

- Adds `apps/base/observability/vmpodscrape-traefik.yaml`: scrapes port `metrics` /metrics on `app.kubernetes.io/name: traefik` pods in traefik-system, relabeling `app.kubernetes.io/instance` to a stable `traefik_instance` label to split internal vs external series
- Registers the new CR in the observability base kustomization
- Enables `metrics.prometheus.addEntryPointsLabels` and `addRoutersLabels` in both au-syd1 traefik values files for per-entrypoint/per-route dashboards (pods restart on rollout — acceptable)

Validated with `kustomize build` (observability base + overlay, traefik-system overlay with --enable-helm) and kubeconform (unknown CRDs skipped); rendered deployments carry the new metric flags and the VMPodScrape renders in the overlay.

Reviewed-on: #397
Co-authored-by: unkin-agent <unkin-agent@unkin.net>
Co-committed-by: unkin-agent <unkin-agent@unkin.net>

This commit was merged in pull request #397.

This commit is contained in:

Unkin Agent

2026-08-23 12:41:58 +10:00

committed by

BenVincent

parent 8fd1d83b1b

commit ba71bd1a35

4 changed files with 34 additions and 0 deletions

									
										apps/base/observability/kustomization.yaml
									
		+1
		
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				@@ -9,3 +9,4 @@ resources:

				  - gateway.yaml

				  - httproute.yaml

				  - vmpodscrape-cnpg.yaml

				  - vmpodscrape-traefik.yaml