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k3s-cluster/monitoring/grafana-dashboard-control-plane.yaml
Roger Oriol bf1387dc3e monitoring: add Grafana dashboards + kube-state-metrics & node-exporter 
Dashboards (provisioned via ConfigMaps into Grafana pod, 'K3s Cluster' folder):
- Cluster Overview: per-namespace CPU/mem/net/fs, pod counts, pod health (KSM)
- Pods & Services: per-pod CPU/mem/net/fs, throttling, pod status, restarts, PVCs
- Nodes: per-node CPU%/mem%, load average, disk usage, network (node-exporter)
- Control Plane & API Server: request rate, latency p95, 5xx, kubelet/PLEG
- Prometheus Self-Monitoring: ingestion, series, scrape duration, memory

Exporters (auto-scraped via existing kubernetes-service-endpoints job):
- kube-state-metrics: pod/deployment/PVC/replica state (kube_pod_status_phase,
  kube_pod_container_status_restarts_total, kube_persistentvolumeclaim_*)
- node-exporter (DaemonSet, hostNetwork): node_cpu_seconds_total,
  node_memory_*, node_filesystem_*, node_load*, node_network_*
2026-06-26 19:48:17 +02:00

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apiVersion: v1
kind: ConfigMap
metadata:
name: grafana-dashboard-control-plane
namespace: monitoring
labels:
app: grafana
grafana_dashboard: "1"
data:
control-plane.json: |
{
"annotations": {"list": []},
"editable": true,
"graphTooltip": 1,
"id": null,
"links": [],
"liveNow": false,
"panels": [
{
"datasource": {"type": "prometheus", "uid": "Prometheus"},
"fieldConfig": {
"defaults": {
"color": {"mode": "palette-classic"},
"custom": {
"drawStyle": "line", "fillOpacity": 10, "lineInterpolation": "linear", "lineWidth": 1, "showPoints": "never", "spanNulls": true,
"stacking": {"group": "A", "mode": "none"}, "thresholdsStyle": {"mode": "off"}
},
"mappings": [],
"thresholds": {"mode": "absolute", "steps": [{"color": "green", "value": null}]},
"unit": "reqps"
},
"overrides": []
},
"gridPos": {"h": 9, "w": 12, "x": 0, "y": 0},
"id": 1,
"options": {
"legend": {"calcs": ["lastNotNull"], "displayMode": "table", "placement": "right", "showLegend": true},
"tooltip": {"mode": "multi", "sort": "desc"}
},
"targets": [{"datasource": {"type": "prometheus", "uid": "Prometheus"}, "expr": "sum(rate(apiserver_request_total[5m])) by (verb)", "legendFormat": "{{verb}}", "refId": "A"}],
"title": "API Server Requests by Verb",
"type": "timeseries"
},
{
"datasource": {"type": "prometheus", "uid": "Prometheus"},
"fieldConfig": {
"defaults": {
"color": {"mode": "palette-classic"},
"custom": {
"drawStyle": "line", "fillOpacity": 10, "lineInterpolation": "linear", "lineWidth": 1, "showPoints": "never", "spanNulls": true,
"stacking": {"group": "A", "mode": "none"}, "thresholdsStyle": {"mode": "off"}
},
"mappings": [],
"thresholds": {"mode": "absolute", "steps": [{"color": "green", "value": null}]},
"unit": "s"
},
"overrides": []
},
"gridPos": {"h": 9, "w": 12, "x": 12, "y": 0},
"id": 2,
"options": {
"legend": {"calcs": ["lastNotNull"], "displayMode": "table", "placement": "right", "showLegend": true},
"tooltip": {"mode": "multi", "sort": "desc"}
},
"targets": [{"datasource": {"type": "prometheus", "uid": "Prometheus"}, "expr": "histogram_quantile(0.95, sum(rate(apiserver_request_duration_seconds_bucket[5m])) by (le, verb))", "legendFormat": "p95 {{verb}}", "refId": "A"}],
"title": "API Server Request Latency p95",
"type": "timeseries"
},
{
"datasource": {"type": "prometheus", "uid": "Prometheus"},
"fieldConfig": {
"defaults": {
"color": {"mode": "palette-classic"},
"custom": {
"drawStyle": "line", "fillOpacity": 10, "lineInterpolation": "linear", "lineWidth": 1, "showPoints": "never", "spanNulls": true,
"stacking": {"group": "A", "mode": "none"}, "thresholdsStyle": {"mode": "off"}
},
"mappings": [],
"thresholds": {"mode": "absolute", "steps": [{"color": "green", "value": null}]},
"unit": "ops"
},
"overrides": []
},
"gridPos": {"h": 9, "w": 12, "x": 0, "y": 9},
"id": 3,
"options": {
"legend": {"calcs": ["lastNotNull"], "displayMode": "table", "placement": "right", "showLegend": true},
"tooltip": {"mode": "multi", "sort": "desc"}
},
"targets": [{"datasource": {"type": "prometheus", "uid": "Prometheus"}, "expr": "sum(rate(apiserver_request_total{code=~\"5..\"}[5m])) by (verb)", "legendFormat": "{{verb}}", "refId": "A"}],
"title": "API Server 5xx Errors",
"type": "timeseries"
},
{
"datasource": {"type": "prometheus", "uid": "Prometheus"},
"fieldConfig": {
"defaults": {
"color": {"mode": "palette-classic"},
"custom": {
"drawStyle": "line", "fillOpacity": 10, "lineInterpolation": "linear", "lineWidth": 1, "showPoints": "never", "spanNulls": true,
"stacking": {"group": "A", "mode": "none"}, "thresholdsStyle": {"mode": "off"}
},
"mappings": [],
"thresholds": {"mode": "absolute", "steps": [{"color": "green", "value": null}]},
"unit": "short"
},
"overrides": []
},
"gridPos": {"h": 9, "w": 12, "x": 12, "y": 9},
"id": 4,
"options": {
"legend": {"calcs": ["lastNotNull"], "displayMode": "table", "placement": "right", "showLegend": true},
"tooltip": {"mode": "multi", "sort": "desc"}
},
"targets": [{"datasource": {"type": "prometheus", "uid": "Prometheus"}, "expr": "sum(rate(kubelet_container_log_filesystem_used_bytes[5m]))", "legendFormat": "log fs", "refId": "A"}, {"datasource": {"type": "prometheus", "uid": "Prometheus"}, "expr": "histogram_quantile(0.95, sum(rate(kubelet_pod_start_duration_seconds_bucket[5m])) by (le))", "legendFormat": "pod start p95", "refId": "B"}],
"title": "Kubelet Pod Start Latency",
"type": "timeseries"
},
{
"datasource": {"type": "prometheus", "uid": "Prometheus"},
"fieldConfig": {
"defaults": {
"color": {"mode": "palette-classic"},
"custom": {
"drawStyle": "line", "fillOpacity": 10, "lineInterpolation": "linear", "lineWidth": 1, "showPoints": "never", "spanNulls": true,
"stacking": {"group": "A", "mode": "none"}, "thresholdsStyle": {"mode": "off"}
},
"mappings": [],
"thresholds": {"mode": "absolute", "steps": [{"color": "green", "value": null}]},
"unit": "s"
},
"overrides": []
},
"gridPos": {"h": 9, "w": 12, "x": 0, "y": 18},
"id": 5,
"options": {
"legend": {"calcs": ["lastNotNull"], "displayMode": "table", "placement": "right", "showLegend": true},
"tooltip": {"mode": "multi", "sort": "desc"}
},
"targets": [{"datasource": {"type": "prometheus", "uid": "Prometheus"}, "expr": "histogram_quantile(0.95, sum(rate(kubelet_cgroup_manager_duration_seconds_bucket[5m])) by (le, instance))", "legendFormat": "{{instance}}", "refId": "A"}],
"title": "Kubelet Cgroup Manager Duration p95",
"type": "timeseries"
},
{
"datasource": {"type": "prometheus", "uid": "Prometheus"},
"fieldConfig": {
"defaults": {
"color": {"mode": "palette-classic"},
"custom": {
"drawStyle": "line", "fillOpacity": 10, "lineInterpolation": "linear", "lineWidth": 1, "showPoints": "never", "spanNulls": true,
"stacking": {"group": "A", "mode": "none"}, "thresholdsStyle": {"mode": "off"}
},
"mappings": [],
"thresholds": {"mode": "absolute", "steps": [{"color": "green", "value": null}]},
"unit": "short"
},
"overrides": []
},
"gridPos": {"h": 9, "w": 12, "x": 12, "y": 18},
"id": 6,
"options": {
"legend": {"calcs": ["lastNotNull"], "displayMode": "table", "placement": "right", "showLegend": true},
"tooltip": {"mode": "multi", "sort": "desc"}
},
"targets": [{"datasource": {"type": "prometheus", "uid": "Prometheus"}, "expr": "rate(kubelet_pleg_relist_duration_seconds_count[5m])", "legendFormat": "relists/s {{instance}}", "refId": "A"}],
"title": "Kubelet PLEG Relist Rate",
"type": "timeseries"
},
{
"datasource": {"type": "prometheus", "uid": "Prometheus"},
"fieldConfig": {
"defaults": {
"color": {"mode": "thresholds"},
"mappings": [
{"options": {"0": {"text": "Down", "color": "red"}, "1": {"text": "Up", "color": "green"}}, "type": "value"}
],
"thresholds": {"mode": "absolute", "steps": [{"color": "red", "value": null}, {"color": "green", "value": 1}]}
},
"overrides": []
},
"gridPos": {"h": 6, "w": 24, "x": 0, "y": 27},
"id": 7,
"options": {
"colorMode": "background",
"graphMode": "none",
"justifyMode": "center",
"orientation": "horizontal",
"reduceOptions": {"calcs": ["lastNotNull"], "fields": "", "values": false},
"textMode": "value_and_name"
},
"pluginVersion": "10.2.3",
"targets": [{"datasource": {"type": "prometheus", "uid": "Prometheus"}, "expr": "up", "refId": "A"}],
"title": "All Scrape Targets Status",
"type": "stat"
}
],
"refresh": "30s",
"schemaVersion": 38,
"style": "dark",
"tags": ["k3s", "control-plane"],
"templating": {"list": []},
"time": {"from": "now-6h", "to": "now"},
"timepicker": {},
"timezone": "",
"title": "Control Plane & API Server",
"uid": "k3s-control-plane",
"version": 1,
"weekStart": ""
}
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