blumeops/argocd/manifests/grafana-config/kustomization.yaml
Erich Blume cc54b4f565
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Add Fly.io proxy observability via embedded Alloy (#123)
## Summary

- Embed Grafana Alloy in the Fly.io proxy container to collect nginx JSON access logs (→ Loki) and derive request rate, latency histogram, cache status, and bandwidth metrics (→ Prometheus)
- Add nginx `stub_status` endpoint for connection-level metrics (active/reading/writing/waiting)
- Create two Grafana dashboards: **Docs APM** (per-service view filtered by `host="docs.eblu.me"`) and **Fly.io Proxy Health** (aggregate proxy health across all upstream services)

## Changed Files

| File | Change |
|------|--------|
| `fly/nginx.conf` | Add JSON `log_format` + `access_log`, add `stub_status` endpoint |
| `fly/Dockerfile` | COPY Alloy binary from `grafana/alloy:v1.5.1`, COPY `alloy.river` config |
| `fly/alloy.river` | **New** — Alloy config: log tailing, metric extraction, remote_write |
| `fly/start.sh` | Start Alloy after Tailscale, before nginx |
| `argocd/manifests/grafana-config/dashboards/configmap-docs-apm.yaml` | **New** — Docs APM dashboard |
| `argocd/manifests/grafana-config/dashboards/configmap-flyio.yaml` | **New** — Fly.io Proxy Health dashboard |
| `argocd/manifests/grafana-config/kustomization.yaml` | Register new dashboard configmaps |
| `docs/reference/services/flyio-proxy.md` | Document observability setup |

## Deployment and Testing

- [ ] `mise run fly-deploy` — rebuild container with Alloy
- [ ] `curl https://docs.eblu.me/` — generate traffic
- [ ] `fly logs -a blumeops-proxy` — verify Alloy startup
- [ ] Query Prometheus: `flyio_nginx_http_requests_total{instance="flyio-proxy"}`
- [ ] Query Loki: `{instance="flyio-proxy", job="flyio-nginx"}`
- [ ] `argocd app sync grafana-config` — deploy dashboards
- [ ] Verify dashboards show data in Grafana
- [ ] `mise run services-check` — no regressions

Reviewed-on: https://forge.ops.eblu.me/eblume/blumeops/pulls/123
2026-02-08 10:05:38 -08:00

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1.6 KiB
YAML

apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
namespace: monitoring
resources:
- ingress-tailscale.yaml
- external-secret-admin.yaml
- external-secret-teslamate-datasource.yaml
# Dashboard ConfigMaps - discovered by Grafana sidecar via label grafana_dashboard=1
- dashboards/configmap-borgmatic.yaml
- dashboards/configmap-devpi.yaml
- dashboards/configmap-loki.yaml
- dashboards/configmap-macos.yaml
- dashboards/configmap-minikube.yaml
- dashboards/configmap-jellyfin.yaml
- dashboards/configmap-postgresql.yaml
- dashboards/configmap-services.yaml
- dashboards/configmap-zot.yaml
- dashboards/configmap-docs-apm.yaml
- dashboards/configmap-flyio.yaml
# TeslaMate dashboards
- dashboards/configmap-teslamate-overview.yaml
- dashboards/configmap-teslamate-charges.yaml
- dashboards/configmap-teslamate-drives.yaml
- dashboards/configmap-teslamate-efficiency.yaml
- dashboards/configmap-teslamate-states.yaml
- dashboards/configmap-teslamate-vampire-drain.yaml
- dashboards/configmap-teslamate-battery-health.yaml
- dashboards/configmap-teslamate-statistics.yaml
- dashboards/configmap-teslamate-charge-level.yaml
- dashboards/configmap-teslamate-updates.yaml
- dashboards/configmap-teslamate-trip.yaml
- dashboards/configmap-teslamate-locations.yaml
- dashboards/configmap-teslamate-mileage.yaml
- dashboards/configmap-teslamate-drive-stats.yaml
- dashboards/configmap-teslamate-charging-stats.yaml
- dashboards/configmap-teslamate-projected-range.yaml
- dashboards/configmap-teslamate-timeline.yaml
- dashboards/configmap-teslamate-visited.yaml