Erich Blume
03d71544ec
## Summary
- Add `cluster` label (indri/ringtail) to all Prometheus scrape jobs, Alloy k8s metrics/logs, and Alloy host metrics/logs
- Deploy kube-state-metrics on ringtail's k3s cluster (ArgoCD app + manifests)
- Deploy Alloy on ringtail to collect pod metrics and logs, remote-writing to indri's Prometheus and Loki
- Replace single-cluster "Minikube Kubernetes" and "K8s Services Health" dashboards with:
- **Kubernetes Clusters** dashboard — multi-cluster with `cluster` and `namespace` template variables
- **Ringtail (k3s)** dashboard — dedicated ringtail view with GPU usage panels
## Deployment and Testing
1. Sync `apps` on indri ArgoCD to pick up new app definitions (`kube-state-metrics-ringtail`, `alloy-ringtail`)
2. Sync `prometheus` → verify `cluster` label on scraped metrics
3. Sync `alloy-k8s` → verify `cluster=indri` on remote-written metrics and logs
4. Run `mise run provision-indri -- --tags alloy` → verify `cluster=indri` on host Alloy metrics/logs
5. Sync `kube-state-metrics-ringtail` → verify pods running on ringtail
6. Sync `alloy-ringtail` → verify pods running, check Prometheus for `kube_pod_info{cluster="ringtail"}`
7. Sync `grafana-config` → verify dashboards appear, cluster variable populates both values
8. Check Loki for `{cluster="ringtail"}` logs from ringtail pods
## Notes
- Alloy on ringtail uses `insecure_skip_verify=true` for TLS to Prometheus/Loki (Tailscale-managed certs not in container trust store) — tighten later
- DNS resolution for `*.tail8d86e.ts.net` from ringtail pods depends on CoreDNS inheriting host's MagicDNS resolver; may need CoreDNS forwarding rules if pods can't resolve
- The old services dashboard (blackbox probes) is removed — those probes are still running in alloy-k8s and the data is still in Prometheus, just not in a dedicated dashboard
Reviewed-on: https://forge.ops.eblu.me/eblume/blumeops/pulls/270
35 lines
841 B
YAML
35 lines
841 B
YAML
apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: alloy
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namespace: alloy
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRole
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metadata:
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name: alloy
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rules:
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- apiGroups: [""]
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resources: ["nodes", "nodes/proxy", "nodes/metrics", "services", "endpoints", "pods", "pods/log", "namespaces"]
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verbs: ["get", "list", "watch"]
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- apiGroups: [""]
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resources: ["configmaps"]
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verbs: ["get"]
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- apiGroups: ["discovery.k8s.io"]
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resources: ["endpointslices"]
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verbs: ["get", "list", "watch"]
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- nonResourceURLs: ["/metrics", "/metrics/cadvisor"]
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verbs: ["get"]
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRoleBinding
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metadata:
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name: alloy
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: alloy
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subjects:
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- kind: ServiceAccount
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name: alloy
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namespace: alloy
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