Declarative Grafana / Prometheus / Loki / Tempo observability stack
Deploys the whole stack into the observability namespace of the local cluster with Kustomize alone — no helm install, no dashboard created by hand in the UI. The Makefile carries every command: deploy, dashboards, diagnostics, PVC flush, teardown. Dashboards are files, never UI objects. Each carries a stable uid, which is what keeps URLs, cross-links and alerts alive across redeployments, and references datasources by stable uid rather than by name. The dashboard ConfigMap is generated without a name-suffix hash so applying it updates it in place and Grafana reloads without a restart, while the provisioning ConfigMaps keep their hash precisely so that a change there does force one. Prometheus scrapes the kubelet /metrics/resource endpoint rather than /metrics/cadvisor: on this cluster cadvisor exposes machine_* series only and no container_* at all, which would leave every CPU and memory panel empty. Alloy ships every pod's logs to Loki through the Kubernetes API, so no /var/log mount is needed. Tempo's metrics_generator feeds span metrics and the service graph back into Prometheus, and the datasources are wired so a log line's trace_id opens the matching trace. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Stéphane Tailland
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# Grafana dashboards -- declarative provisioning.
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#
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# Rules:
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# * one .json file per dashboard, named after its UID;
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# * every JSON carries a STABLE "uid" field (never regenerated): that is what
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# keeps URLs, cross-links and alerts alive across redeployments;
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# * `disableNameSuffixHash: true` -> the ConfigMap always keeps the same name,
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# so `kubectl apply` updates it in place and Grafana reloads WITHOUT
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# restarting the pod, in about 70s (see dashboard-providers.yaml).
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#
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# Adding a dashboard = drop the .json here and add it to `files:` below.
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apiVersion: kustomize.config.k8s.io/v1beta1
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kind: Kustomization
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namespace: observability
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configMapGenerator:
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- name: grafana-dashboards
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files:
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# >>> dashboards (generated by `make dashboards-sync`) >>>
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- obs-classic-models-api.json
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- obs-keycloak.json
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- obs-librechat.json
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- obs-stack-health.json
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# <<< dashboards <<<
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generatorOptions:
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disableNameSuffixHash: true
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labels:
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app.kubernetes.io/name: grafana
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app.kubernetes.io/component: dashboards
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app.kubernetes.io/part-of: observability
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Load Diff
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Load Diff
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Load Diff
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{
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"uid": "obs-stack-health",
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"title": "Observability — Stack Health",
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"description": "Health of the Prometheus / Loki / Tempo / Alloy stack. Reference dashboard: stable UID, declaratively provisioned.",
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"tags": [
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"observability",
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"stack",
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"provisioned"
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],
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"editable": false,
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"schemaVersion": 39,
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"version": 1,
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"refresh": "30s",
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"time": {
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"from": "now-1h",
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"to": "now"
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},
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"timezone": "browser",
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"templating": {
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"list": [
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{
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"name": "namespace",
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"label": "Namespace",
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"type": "query",
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"datasource": {
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"type": "prometheus",
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"uid": "prometheus"
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},
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"query": "label_values(kube_pod_info, namespace)",
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"refresh": 2,
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"includeAll": true,
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"multi": true,
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"current": {
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"text": "observability",
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"value": "observability"
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}
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}
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]
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},
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"panels": [
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{
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"id": 1,
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"type": "row",
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"title": "Collection",
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"gridPos": {
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"h": 1,
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"w": 24,
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"x": 0,
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"y": 0
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},
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"collapsed": false,
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"panels": []
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},
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{
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"id": 2,
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"type": "stat",
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"title": "Prometheus targets UP",
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"datasource": {
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"type": "prometheus",
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"uid": "prometheus"
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},
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"gridPos": {
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"h": 5,
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"w": 6,
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"x": 0,
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"y": 1
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},
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"targets": [
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{
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"refId": "A",
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"datasource": {
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"type": "prometheus",
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"uid": "prometheus"
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},
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"expr": "sum(up)",
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"legendFormat": "up"
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}
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],
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"fieldConfig": {
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"defaults": {
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"unit": "short",
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"color": {
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"mode": "thresholds"
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},
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"thresholds": {
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"mode": "absolute",
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"steps": [
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{
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"color": "red",
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"value": null
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},
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{
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"color": "green",
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"value": 1
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}
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]
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}
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},
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"overrides": []
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},
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"options": {
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"reduceOptions": {
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"calcs": [
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"lastNotNull"
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],
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"fields": "",
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"values": false
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},
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"colorMode": "value",
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"graphMode": "area",
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"textMode": "auto"
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}
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},
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{
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"id": 3,
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"type": "stat",
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"title": "Prometheus targets DOWN",
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"datasource": {
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"type": "prometheus",
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"uid": "prometheus"
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},
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"gridPos": {
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"h": 5,
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"w": 6,
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"x": 6,
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"y": 1
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},
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"targets": [
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{
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"refId": "A",
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"datasource": {
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"type": "prometheus",
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"uid": "prometheus"
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},
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"expr": "sum(up == bool 0)",
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"legendFormat": "down"
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}
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],
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"fieldConfig": {
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"defaults": {
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"unit": "short",
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"color": {
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"mode": "thresholds"
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},
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"thresholds": {
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"mode": "absolute",
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"steps": [
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{
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"color": "green",
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"value": null
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},
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{
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"color": "red",
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"value": 1
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}
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]
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}
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},
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"overrides": []
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},
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"options": {
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"reduceOptions": {
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"calcs": [
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"lastNotNull"
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],
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"fields": "",
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"values": false
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},
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"colorMode": "value",
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"graphMode": "none",
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"textMode": "auto"
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}
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},
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{
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"id": 4,
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"type": "stat",
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"title": "Log lines ingested (/s)",
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"datasource": {
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"type": "prometheus",
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"uid": "prometheus"
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},
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"gridPos": {
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"h": 5,
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"w": 6,
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"x": 12,
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"y": 1
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},
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"targets": [
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{
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"refId": "A",
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"datasource": {
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"type": "prometheus",
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"uid": "prometheus"
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},
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"expr": "sum(rate(loki_distributor_lines_received_total[5m]))",
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"legendFormat": "lines/s"
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}
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],
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"fieldConfig": {
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"defaults": {
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"unit": "short",
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"decimals": 1,
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"color": {
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"mode": "fixed",
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"fixedColor": "blue"
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}
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},
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"overrides": []
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},
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"options": {
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"reduceOptions": {
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"calcs": [
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"lastNotNull"
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],
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"fields": "",
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"values": false
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},
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"colorMode": "value",
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"graphMode": "area",
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"textMode": "auto"
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}
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},
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{
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"id": 5,
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"type": "stat",
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"title": "Spans ingested (/s)",
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"datasource": {
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"type": "prometheus",
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"uid": "prometheus"
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},
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"gridPos": {
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"h": 5,
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"w": 6,
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"x": 18,
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"y": 1
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},
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"targets": [
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{
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"refId": "A",
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"datasource": {
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"type": "prometheus",
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"uid": "prometheus"
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},
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"expr": "sum(rate(tempo_distributor_spans_received_total[5m]))",
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"legendFormat": "spans/s"
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}
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],
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"fieldConfig": {
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"defaults": {
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"unit": "short",
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"decimals": 1,
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"color": {
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"mode": "fixed",
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"fixedColor": "purple"
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}
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},
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"overrides": []
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},
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"options": {
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"reduceOptions": {
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"calcs": [
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"lastNotNull"
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],
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"fields": "",
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"values": false
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},
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"colorMode": "value",
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"graphMode": "area",
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"textMode": "auto"
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}
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},
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{
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"id": 6,
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"type": "row",
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"title": "Stack resources",
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"gridPos": {
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"h": 1,
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"w": 24,
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"x": 0,
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"y": 6
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},
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"collapsed": false,
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"panels": []
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},
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{
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"id": 7,
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"type": "timeseries",
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"title": "CPU per component (observability namespace)",
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"datasource": {
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"type": "prometheus",
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"uid": "prometheus"
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},
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"gridPos": {
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"h": 8,
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"w": 12,
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"x": 0,
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"y": 7
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},
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"targets": [
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{
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"refId": "A",
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"datasource": {
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"type": "prometheus",
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"uid": "prometheus"
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},
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"expr": "sum by (pod) (rate(container_cpu_usage_seconds_total{namespace=\"observability\", container!=\"\"}[$__rate_interval]))",
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"legendFormat": "{{pod}}"
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}
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],
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"fieldConfig": {
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"defaults": {
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"unit": "short",
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"custom": {
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"drawStyle": "line",
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"lineWidth": 1,
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"fillOpacity": 10,
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"showPoints": "never"
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}
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},
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"overrides": []
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},
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"options": {
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"legend": {
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"displayMode": "table",
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"placement": "bottom",
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"calcs": [
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"mean",
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"max"
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]
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},
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"tooltip": {
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"mode": "multi",
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"sort": "desc"
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}
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}
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},
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{
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"id": 8,
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"type": "timeseries",
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"title": "Memory per component (observability namespace)",
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"datasource": {
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"type": "prometheus",
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"uid": "prometheus"
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},
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"gridPos": {
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"h": 8,
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"w": 12,
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"x": 12,
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"y": 7
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},
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"targets": [
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{
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"refId": "A",
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"datasource": {
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"type": "prometheus",
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"uid": "prometheus"
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},
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"expr": "sum by (pod) (container_memory_working_set_bytes{namespace=\"observability\", container!=\"\"})",
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"legendFormat": "{{pod}}"
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}
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],
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"fieldConfig": {
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"defaults": {
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"unit": "bytes",
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"custom": {
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"drawStyle": "line",
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"lineWidth": 1,
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"fillOpacity": 10,
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"showPoints": "never"
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}
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},
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"overrides": []
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},
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"options": {
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"legend": {
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"displayMode": "table",
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"placement": "bottom",
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"calcs": [
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"mean",
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"max"
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]
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},
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"tooltip": {
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"mode": "multi",
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"sort": "desc"
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}
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}
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},
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{
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"id": 9,
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"type": "row",
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"title": "Logs",
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"gridPos": {
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"h": 1,
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"w": 24,
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"x": 0,
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"y": 15
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},
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"collapsed": false,
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"panels": []
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},
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{
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"id": 10,
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"type": "logs",
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"title": "Recent stack errors",
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"datasource": {
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"type": "loki",
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"uid": "loki"
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},
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"gridPos": {
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"h": 10,
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"w": 24,
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"x": 0,
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"y": 16
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},
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"targets": [
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{
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"refId": "A",
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"datasource": {
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"type": "loki",
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"uid": "loki"
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},
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"expr": "{namespace=\"observability\"} |~ \"(?i)(error|level=error|fatal)\"",
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"queryType": "range"
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}
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],
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"options": {
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"showTime": true,
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"showLabels": false,
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"wrapLogMessage": true,
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"sortOrder": "Descending",
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"dedupStrategy": "none",
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"enableLogDetails": true
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}
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}
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]
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}
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Reference in New Issue
Block a user