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In dieser Anleitung zeige ich, wie ihr die Metrics eurer Nextcloud-Installation in Grafana über ein grafisches Dashboard darstellen könnt.
0. Grundvoraussetzungen
- Docker & Docker Compose v2 (Debian / Ubuntu)
- NEXTCLOUD SERVER – MIT DOCKER COMPOSE UND TRAEFIK INSTALLIEREN
- GRAFANA – MIT DOCKER COMPOSE UND TRAEFIK INSTALLIEREN
1. Nextcloud vorbereiten
1.1 Docker-compose.yml anpassen
Wir werden den Container “nextcloud-exporter” einsetzen, um die Metrics-Daten der Nextcloud auszulesen. Daher erstellen wir ein monitoring-Netzwerk, über das dieser Container mit der Nextcloud-App kommunizieren kann.
nano /opt/containers/nextcloud/docker-compose.yml
Füge die markierten Zeilen hinzu:
nextcloud-app:
image: nextcloud
.
.
.
networks:
- proxy
- default
- monitoring # <=== Diese Zeile hinzufügen
networks:
proxy:
external: true
monitoring: # <=== Diese Zeile hinzufügen
name: monitoring # <=== Diese Zeile hinzufügen
driver: bridge # <=== Diese Zeile hinzufügen
attachable: true # <=== Diese Zeile hinzufügen
1.2 Nextcloud config.php anpassen
sudo nano /opt/containers/nextcloud/app/config/config.php
Nach der Zeile ‘trusted domains =>’ suchen und die folgende Zeile hinzufügen:
'trusted_domains' =>
array (
0 => 'cloud.mgfportal.de',
1 => 'nextcloud-app', # <==== Diese Zeile hinzufügen
),
1.3 Nextcloud Authentifizierung
Nextcloud in der Version 22 und höher unterstützen “Token-Authentifikation” für die Server-Infos.
Generiere zunächst einen Zufalls-Wert:
TOKEN=$(openssl rand -hex 32)
Setze den Token mittels OCC-Command:
docker exec -it --user www-data nextcloud-app /var/www/html/occ config:app:set serverinfo token --value "$TOKEN"
Mögliche Ausgabe:
Config value token for app serverinfo set to 8cdbfxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Wichtig: Ausgegebenen Token in einen Texteditor kopieren!
2. Nextcloud-exporter zur docker-compose.yml von Grafana hinzufügen
Ergänze den Grafana-Stack um einen weiteren Container:
nano /opt/containers/grafana/docker-compose.yml
mon_nextcloud-exporter:
image: xperimental/nextcloud-exporter:latest
container_name: mon_nextcloud-exporter
restart: unless-stopped
environment:
- NEXTCLOUD_SERVER=http://nextcloud-app
- NEXTCLOUD_AUTH_TOKEN=8cdbfxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
networks:
- default
- monitoring
Passe den Token in Zeile 7 entsprechend deiner Ausgabe an!
Weitere Anpassungen in der Datei:
mon_prometheus:
image: prom/prometheus:latest
container_name: mon_prometheus
restart: unless-stopped
volumes:
- ./prometheus:/etc/prometheus
- prometheus_data:/prometheus # <=== Diese Zeile hinzufügen
command:
- --config.file=/etc/prometheus/prometheus.yml
depends_on:
- mon_node-exporter
- mon_cadvisor
- mon_nextcloud-exporter # <=== Diese Zeile hinzufügen
networks:
- default
- crowdsec
.
.
.
volumes: # <=== Diese Zeile hinzufügen
prometheus_data: # <=== Diese Zeile hinzufügen
networks:
proxy:
external: true
crowdsec:
external: true
monitoring: # <=== Diese Zeile hinzufügen
external: true # <=== Diese Zeile hinzufügen
3. Prometheus Konfigurationsdatei anpassen
Prometheus anweisen, die Daten vom Nextcloud-exporter zu holen:
nano /opt/containers/grafana/prometheus/prometheus.yml
Am Ende der Datei folgendes einfügen:
- job_name: 'nextcloud'
scrape_interval: 90s
static_configs:
- targets: ['mon_nextcloud-exporter:9205']
5. Container neu starten
docker compose -f /opt/containers/nextcloud/docker-compose.yml down docker compose -f /opt/containers/nextcloud/docker-compose.yml up -d
docker compose -f /opt/containers/grafana/docker-compose.yml down docker compose -f /opt/containers/grafana/docker-compose.yml up -d
6. Grafana Dashboard(s) hinzufügen
Ich habe zwei fertige Dashboards gefunden, die ihr genauso, wie Christian es in seinem Grafana-Artikel beschrieben hat, einfügen könnt.
6.1 Dashboard No. 1
{
"__inputs": [],
"__requires": [
{
"type": "panel",
"id": "gauge",
"name": "Gauge",
"version": ""
},
{
"type": "grafana",
"id": "grafana",
"name": "Grafana",
"version": "6.2.5"
},
{
"type": "panel",
"id": "graph",
"name": "Graph",
"version": ""
},
{
"type": "panel",
"id": "singlestat",
"name": "Singlestat",
"version": ""
}
],
"annotations": {
"list": [
{
"builtIn": 1,
"datasource": "-- Grafana --",
"enable": true,
"hide": true,
"iconColor": "rgba(0, 211, 255, 1)",
"name": "Annotations & Alerts",
"type": "dashboard"
}
]
},
"editable": true,
"gnetId": 11033,
"graphTooltip": 0,
"id": null,
"links": [],
"panels": [
{
"cacheTimeout": null,
"gridPos": {
"h": 5,
"w": 11,
"x": 0,
"y": 0
},
"id": 14,
"links": [],
"options": {
"fieldOptions": {
"calcs": [
"last"
],
"defaults": {
"decimals": 0,
"max": 100,
"min": 0
},
"mappings": [],
"override": {},
"thresholds": [
{
"color": "green",
"index": 0,
"value": null
},
{
"color": "red",
"index": 1,
"value": 20
}
],
"values": false
},
"orientation": "auto",
"showThresholdLabels": false,
"showThresholdMarkers": true
},
"pluginVersion": "6.2.5",
"targets": [
{
"expr": "nextcloud_shares_total{type=\"authlink\"}",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "authlink",
"refId": "A"
},
{
"expr": "nextcloud_shares_total{type=\"link\"}",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "link",
"refId": "B"
},
{
"expr": "nextcloud_shares_total{type=\"group\"}",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "group",
"refId": "C"
},
{
"expr": "nextcloud_shares_total{type=\"user\"}",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "user",
"refId": "D"
}
],
"timeFrom": null,
"timeShift": null,
"title": "Total Shared Links By Type",
"type": "gauge"
},
{
"gridPos": {
"h": 6,
"w": 5,
"x": 11,
"y": 0
},
"id": 2,
"links": [],
"options": {
"fieldOptions": {
"calcs": [
"last"
],
"defaults": {
"decimals": 2,
"max": 1099511627776,
"min": 0,
"unit": "bytes"
},
"mappings": [],
"override": {},
"thresholds": [
{
"color": "red",
"index": 0,
"value": null
},
{
"color": "orange",
"index": 1,
"value": 68719476736
},
{
"color": "green",
"index": 2,
"value": 188978561024
}
],
"values": false
},
"orientation": "auto",
"showThresholdLabels": false,
"showThresholdMarkers": true
},
"pluginVersion": "6.2.5",
"targets": [
{
"expr": "nextcloud_free_space_bytes - 1099511627776",
"format": "time_series",
"intervalFactor": 1,
"refId": "A"
}
],
"timeFrom": null,
"timeShift": null,
"title": "Free Space Remaining",
"type": "gauge"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": false,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"decimals": 0,
"format": "bytes",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 16,
"y": 0
},
"id": 10,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"options": {},
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false
},
"tableColumn": "",
"targets": [
{
"expr": "nextcloud_php_upload_max_size_bytes",
"format": "time_series",
"intervalFactor": 1,
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "PHP Max Upload File Size",
"type": "singlestat",
"valueFontSize": "80%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": true,
"colorValue": false,
"colors": [
"#d44a3a",
"#F2495C",
"#299c46"
],
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 4,
"w": 3,
"x": 21,
"y": 0
},
"id": 4,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"options": {},
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false
},
"tableColumn": "",
"targets": [
{
"expr": "nextcloud_up",
"format": "time_series",
"intervalFactor": 1,
"refId": "A"
}
],
"thresholds": "0,1,2",
"timeFrom": null,
"timeShift": null,
"title": "App Status",
"type": "singlestat",
"valueFontSize": "80%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
},
{
"op": "=",
"text": "Up",
"value": "1"
},
{
"op": "=",
"text": "Down",
"value": "0"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": false,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"format": "bytes",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 16,
"y": 3
},
"id": 16,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"options": {},
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": false
},
"tableColumn": "",
"targets": [
{
"expr": "nextcloud_php_memory_limit_bytes",
"format": "time_series",
"intervalFactor": 1,
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "PHP Max Memory Size",
"type": "singlestat",
"valueFontSize": "80%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": true,
"colorValue": false,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 4,
"w": 3,
"x": 21,
"y": 4
},
"id": 6,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"options": {},
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "#73BF69",
"show": true
},
"tableColumn": "",
"targets": [
{
"expr": "nextcloud_active_users_total",
"format": "time_series",
"intervalFactor": 1,
"refId": "A"
}
],
"thresholds": "1,2",
"timeFrom": null,
"timeShift": null,
"title": "Current Active Users",
"type": "singlestat",
"valueFontSize": "80%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"fill": 1,
"gridPos": {
"h": 7,
"w": 11,
"x": 0,
"y": 5
},
"id": 20,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"links": [],
"nullPointMode": "null",
"options": {},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "nextcloud_shares_federated_total{direction=\"received\"}",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "recieved",
"refId": "A"
},
{
"expr": "nextcloud_shares_federated_total{direction=\"sent\"}",
"format": "time_series",
"intervalFactor": 1,
"legendFormat": "sent",
"refId": "B"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Federated Nextcloud Data Exchange Total",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"gridPos": {
"h": 5,
"w": 5,
"x": 11,
"y": 6
},
"id": 18,
"links": [],
"options": {
"fieldOptions": {
"calcs": [
"last"
],
"defaults": {
"max": 40000000,
"min": 0,
"unit": "bytes"
},
"mappings": [],
"override": {},
"thresholds": [
{
"color": "green",
"index": 0,
"value": null
},
{
"color": "red",
"index": 1,
"value": 30000000
}
],
"values": false
},
"orientation": "auto",
"showThresholdLabels": false,
"showThresholdMarkers": true
},
"pluginVersion": "6.2.5",
"targets": [
{
"expr": "nextcloud_database_size_bytes",
"format": "time_series",
"intervalFactor": 1,
"refId": "A"
}
],
"timeFrom": null,
"timeShift": null,
"title": "Database Size",
"type": "gauge"
},
{
"cacheTimeout": null,
"colorBackground": true,
"colorValue": false,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 4,
"w": 5,
"x": 16,
"y": 6
},
"id": 8,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"options": {},
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": true
},
"tableColumn": "",
"targets": [
{
"expr": "nextcloud_auth_errors_total",
"format": "time_series",
"intervalFactor": 1,
"refId": "A"
}
],
"thresholds": "3,5",
"timeFrom": null,
"timeShift": null,
"title": "Total Authorization Errors",
"type": "singlestat",
"valueFontSize": "80%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
},
{
"cacheTimeout": null,
"colorBackground": false,
"colorValue": false,
"colors": [
"#299c46",
"rgba(237, 129, 40, 0.89)",
"#d44a3a"
],
"format": "none",
"gauge": {
"maxValue": 100,
"minValue": 0,
"show": false,
"thresholdLabels": false,
"thresholdMarkers": true
},
"gridPos": {
"h": 3,
"w": 5,
"x": 16,
"y": 10
},
"id": 12,
"interval": null,
"links": [],
"mappingType": 1,
"mappingTypes": [
{
"name": "value to text",
"value": 1
},
{
"name": "range to text",
"value": 2
}
],
"maxDataPoints": 100,
"nullPointMode": "connected",
"nullText": null,
"options": {},
"postfix": "",
"postfixFontSize": "50%",
"prefix": "",
"prefixFontSize": "50%",
"rangeMaps": [
{
"from": "null",
"text": "N/A",
"to": "null"
}
],
"sparkline": {
"fillColor": "rgba(31, 118, 189, 0.18)",
"full": false,
"lineColor": "rgb(31, 120, 193)",
"show": true
},
"tableColumn": "",
"targets": [
{
"expr": "nextcloud_files_total",
"format": "time_series",
"intervalFactor": 1,
"refId": "A"
}
],
"thresholds": "",
"timeFrom": null,
"timeShift": null,
"title": "Total File Count",
"type": "singlestat",
"valueFontSize": "80%",
"valueMaps": [
{
"op": "=",
"text": "N/A",
"value": "null"
}
],
"valueName": "current"
}
],
"schemaVersion": 18,
"style": "dark",
"tags": [],
"templating": {
"list": []
},
"time": {
"from": "now-6h",
"to": "now"
},
"timepicker": {
"refresh_intervals": [
"5s",
"10s",
"30s",
"1m",
"5m",
"15m",
"30m",
"1h",
"2h",
"1d"
],
"time_options": [
"5m",
"15m",
"1h",
"6h",
"12h",
"24h",
"2d",
"7d",
"30d"
]
},
"timezone": "",
"title": "Nextcloud Exporter Prometheus Dashboard",
"uid": "D1j1gqTZk",
"version": 8,
"description": "Dashboard for Nextcloud Prometheus data"
}
6.2 Dashboard No. 2
So sieht dieses Dashboard aus:
{
"__inputs": [],
"__requires": [
{
"type": "panel",
"id": "gauge",
"name": "Gauge",
"version": ""
},
{
"type": "grafana",
"id": "grafana",
"name": "Grafana",
"version": "6.2.5"
},
{
"type": "panel",
"id": "graph",
"name": "Graph",
"version": ""
},
{
"type": "panel",
"id": "singlestat",
"name": "Singlestat",
"version": ""
}
],
"annotations": {
"list": [
{
"builtIn": 1,
"datasource": "-- Grafana --",
"enable": true,
"hide": true,
"iconColor": "rgba(0, 211, 255, 1)",
"name": "Annotations & Alerts",
"type": "dashboard"
}
]
},
"editable": true,
"gnetId": 11033,
"graphTooltip": 0,
"id": null,
"links": [],
"panels": [
{
"cacheTimeout": null,
"gridPos": {
"h": 5,
"w": 11,
"x": 0,
"y": 0
},
"id": 14,
"links": [],
"options": {
"fieldOptions": {
"calcs": [
"last"
],
"defaults": {
"decimals": 0,
"max": 100,
"min": 0
},
"mappings": [],
"override": {},
"thresholds": [
{
"color": "green",
"index": 0,
"value": null
},
{
"color": "red",
"index": 1,
"value": 20
}
],
"values": false
},
"orientation": "auto",
"showThresholdLabels": false,
"showThresholdMarkers": true
},
"pluginVersion": "6.2.5",
"targets": [
{
"expr": "nextcloud_shares_total{type=\"authlink\"}",
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7. Quellen
- nextcloud-exporter/README.md at master · xperimental/nextcloud-exporter · GitHub
- Grafana Dashboard · Issue #36 · xperimental/nextcloud-exporter · GitHub
