feat: prometheus + grafana

This commit is contained in:
2026-07-09 13:25:15 +02:00
parent 800a78848d
commit 61fe3f4338
27 changed files with 2282 additions and 115 deletions
@@ -0,0 +1,731 @@
{
"annotations": {
"list": [
{
"builtIn": 1,
"datasource": {
"type": "grafana",
"uid": "-- Grafana --"
},
"enable": true,
"hide": true,
"iconColor": "rgba(0, 211, 255, 1)",
"name": "Annotations & Alerts",
"target": {
"limit": 100,
"matchAny": false,
"tags": [],
"type": "dashboard"
},
"type": "dashboard"
}
]
},
"editable": true,
"fiscalYearStartMonth": 0,
"graphTooltip": 1,
"links": [],
"liveNow": false,
"schemaVersion": 39,
"style": "dark",
"tags": [
"az",
"demo",
"provisioned"
],
"templating": {
"list": []
},
"time": {
"from": "now-6h",
"to": "now"
},
"timepicker": {
"refresh_intervals": [
"10s",
"30s",
"1m",
"5m",
"15m",
"30m",
"1h"
]
},
"timezone": "browser",
"version": 1,
"weekStart": "",
"uid": "az-node-fleet-demo",
"title": "AZ Node Fleet Demo",
"refresh": "30s",
"description": "Demo dashboard for node_exporter metrics on AZ-PRM-1 and AZ-CLD-1. Uses the default Prometheus datasource provisioned by NixOS.",
"panels": [
{
"id": 1,
"title": "Scrape up",
"type": "stat",
"datasource": null,
"gridPos": {
"h": 4,
"w": 6,
"x": 0,
"y": 0
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"custom": {},
"mappings": [],
"unit": "short",
"decimals": 0,
"min": 0,
"max": 1,
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "red",
"value": null
},
{
"color": "green",
"value": 1
}
]
}
},
"overrides": []
},
"options": {
"colorMode": "background",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"textMode": "auto"
},
"targets": [
{
"expr": "up{job=~\"node|node-cld\"}",
"legendFormat": "{{instance}}",
"refId": "A"
}
],
"description": "1 means Prometheus can scrape the host."
},
{
"id": 2,
"title": "Uptime",
"type": "stat",
"datasource": null,
"gridPos": {
"h": 4,
"w": 6,
"x": 6,
"y": 0
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"custom": {},
"mappings": [],
"unit": "d",
"decimals": 1,
"min": 0,
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
}
]
}
},
"overrides": []
},
"options": {
"colorMode": "background",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"textMode": "auto"
},
"targets": [
{
"expr": "(time() - node_boot_time_seconds) / 86400",
"legendFormat": "{{instance}}",
"refId": "A"
}
]
},
{
"id": 3,
"title": "CPU busy",
"type": "gauge",
"datasource": null,
"gridPos": {
"h": 4,
"w": 6,
"x": 12,
"y": 0
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"custom": {},
"mappings": [],
"unit": "percent",
"decimals": 1,
"min": 0,
"max": 100,
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "yellow",
"value": 70
},
{
"color": "red",
"value": 90
}
]
}
},
"overrides": []
},
"options": {
"orientation": "auto",
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"showThresholdLabels": false,
"showThresholdMarkers": true
},
"targets": [
{
"expr": "100 - (avg by(instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[$__rate_interval])) * 100)",
"legendFormat": "{{instance}}",
"refId": "A"
}
]
},
{
"id": 4,
"title": "Memory used",
"type": "gauge",
"datasource": null,
"gridPos": {
"h": 4,
"w": 6,
"x": 18,
"y": 0
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"custom": {},
"mappings": [],
"unit": "percent",
"decimals": 1,
"min": 0,
"max": 100,
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "yellow",
"value": 75
},
{
"color": "red",
"value": 90
}
]
}
},
"overrides": []
},
"options": {
"orientation": "auto",
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"showThresholdLabels": false,
"showThresholdMarkers": true
},
"targets": [
{
"expr": "100 * (1 - (node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes))",
"legendFormat": "{{instance}}",
"refId": "A"
}
]
},
{
"id": 5,
"title": "CPU busy by host",
"type": "timeseries",
"datasource": null,
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 4
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"custom": {},
"mappings": [],
"unit": "percent",
"decimals": 1,
"min": 0,
"max": 100,
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "yellow",
"value": 70
},
{
"color": "red",
"value": 90
}
]
}
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "none"
}
},
"targets": [
{
"expr": "100 - (avg by(instance) (rate(node_cpu_seconds_total{mode=\"idle\"}[$__rate_interval])) * 100)",
"legendFormat": "{{instance}}",
"refId": "A"
}
]
},
{
"id": 6,
"title": "Load average (5m)",
"type": "timeseries",
"datasource": null,
"gridPos": {
"h": 8,
"w": 12,
"x": 12,
"y": 4
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"custom": {},
"mappings": [],
"unit": "short",
"decimals": 2,
"min": 0
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "none"
}
},
"targets": [
{
"expr": "node_load5",
"legendFormat": "{{instance}}",
"refId": "A"
}
]
},
{
"id": 7,
"title": "Memory used",
"type": "timeseries",
"datasource": null,
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 12
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"custom": {},
"mappings": [],
"unit": "percent",
"decimals": 1,
"min": 0,
"max": 100,
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "yellow",
"value": 75
},
{
"color": "red",
"value": 90
}
]
}
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "none"
}
},
"targets": [
{
"expr": "100 * (1 - (node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes))",
"legendFormat": "{{instance}}",
"refId": "A"
}
]
},
{
"id": 8,
"title": "Root filesystem used",
"type": "timeseries",
"datasource": null,
"gridPos": {
"h": 8,
"w": 12,
"x": 12,
"y": 12
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"custom": {},
"mappings": [],
"unit": "percent",
"decimals": 1,
"min": 0,
"max": 100,
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "yellow",
"value": 80
},
{
"color": "red",
"value": 92
}
]
}
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "none"
}
},
"targets": [
{
"expr": "100 * (1 - (node_filesystem_avail_bytes{mountpoint=\"/\",fstype!~\"tmpfs|overlay|squashfs|ramfs\"} / node_filesystem_size_bytes{mountpoint=\"/\",fstype!~\"tmpfs|overlay|squashfs|ramfs\"}))",
"legendFormat": "{{instance}}",
"refId": "A"
}
]
},
{
"id": 9,
"title": "Network throughput",
"type": "timeseries",
"datasource": null,
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 20
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"custom": {},
"mappings": [],
"unit": "Bps",
"decimals": 1,
"min": 0
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "none"
}
},
"targets": [
{
"expr": "sum by(instance) (rate(node_network_receive_bytes_total{device!~\"lo|veth.*|docker.*|br-.*\"}[$__rate_interval]))",
"legendFormat": "{{instance}} RX",
"refId": "A"
},
{
"expr": "sum by(instance) (rate(node_network_transmit_bytes_total{device!~\"lo|veth.*|docker.*|br-.*\"}[$__rate_interval]))",
"legendFormat": "{{instance}} TX",
"refId": "B"
}
]
},
{
"id": 10,
"title": "Disk IO",
"type": "timeseries",
"datasource": null,
"gridPos": {
"h": 8,
"w": 12,
"x": 12,
"y": 20
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"custom": {},
"mappings": [],
"unit": "Bps",
"decimals": 1,
"min": 0
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "none"
}
},
"targets": [
{
"expr": "sum by(instance) (rate(node_disk_read_bytes_total[$__rate_interval]))",
"legendFormat": "{{instance}} read",
"refId": "A"
},
{
"expr": "sum by(instance) (rate(node_disk_written_bytes_total[$__rate_interval]))",
"legendFormat": "{{instance}} write",
"refId": "B"
}
]
},
{
"id": 11,
"title": "Failed systemd units",
"type": "stat",
"datasource": null,
"gridPos": {
"h": 4,
"w": 12,
"x": 0,
"y": 28
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"custom": {},
"mappings": [],
"unit": "short",
"decimals": 0,
"min": 0,
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 1
}
]
}
},
"overrides": []
},
"options": {
"colorMode": "background",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"textMode": "auto"
},
"targets": [
{
"expr": "sum by(instance) (node_systemd_units{state=\"failed\"})",
"legendFormat": "{{instance}}",
"refId": "A"
}
],
"description": "Requires node_exporter systemd collector."
},
{
"id": 12,
"title": "Filesystem free bytes",
"type": "stat",
"datasource": null,
"gridPos": {
"h": 4,
"w": 12,
"x": 12,
"y": 28
},
"fieldConfig": {
"defaults": {
"color": {
"mode": "palette-classic"
},
"custom": {},
"mappings": [],
"unit": "bytes",
"decimals": 1,
"min": 0
},
"overrides": []
},
"options": {
"colorMode": "background",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"textMode": "auto"
},
"targets": [
{
"expr": "node_filesystem_avail_bytes{mountpoint=\"/\",fstype!~\"tmpfs|overlay|squashfs|ramfs\"}",
"legendFormat": "{{instance}}",
"refId": "A"
}
]
}
]
}