feat(monitoring): supervise l'API, la base et l'hôte avec Prometheus et Grafana

L'API exposait /metrics, mais aucun collecteur ne le lisait : monitoring/ ne contenait que des
.gitkeep.

Sous le profil Compose `monitoring` : prometheus, alertmanager, grafana, postgres-exporter,
node-exporter et cadvisor. Tous ont un mem_limit, pour environ 700 Mo au total sur la VM de 8 Go,
et leurs interfaces n'écoutent que sur 127.0.0.1. Le profil est actif en prod via
COMPOSE_PROFILES, donc à chaque déploiement, et se lance à la demande ailleurs
(make monitoring-up).

- Neuf règles d'alerte (API, base, hôte, cibles). Chacune a un cas dans les tests joués par
  `promtool test rules`, en CI comme par make monitoring-check.
- Alertmanager route les alertes par courriel vers Mailpit ; un critical masque le warning de la
  même cible.
- Grafana est provisionné : sources Prometheus et TimescaleDB, et trois tableaux de bord (API,
  données et dérive du modèle, infrastructure).
- Le rôle PostgreSQL `supervision` est en lecture seule sur les seules tables métier
  (db/roles/supervision.sql), posé par make db-ensure-supervision et par stack-up quand le
  profil est actif.
- Le jeton de /metrics passe à Prometheus en secret Compose (APP_METRICS_TOKEN) ;
  provision-host.sh génère ce secret et les deux autres.

Backend :
- un APP_METRICS_TOKEN vide vaut absent ;
- les sondes de santé ne comptent plus dans les métriques ;
- seaux de latence fins autour de 500 ms ;
- un registre Prometheus par application, sans quoi toute application créée après la première
  (dans les tests) ne mesurait rien.

Réf : #26
This commit is contained in:
Johan LEROY
2026-09-23 09:41:12 +02:00
parent 2ed9e1cee4
commit dc952d13aa
28 changed files with 2364 additions and 19 deletions
+578
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@@ -0,0 +1,578 @@
{
"uid": "enervision-api",
"title": "EnerVision · API",
"description": "Débit, erreurs et latences vus par l'API elle-même (prometheus-fastapi-instrumentator).",
"tags": [
"enervision"
],
"timezone": "browser",
"editable": false,
"graphTooltip": 1,
"refresh": "10s",
"schemaVersion": 39,
"version": 1,
"time": {
"from": "now-1h",
"to": "now"
},
"templating": {
"list": []
},
"annotations": {
"list": []
},
"links": [],
"panels": [
{
"id": 1,
"type": "stat",
"title": "API",
"gridPos": {
"x": 0,
"y": 0,
"w": 6,
"h": 4
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "up{job=\"backend\"}",
"legendFormat": "",
"range": true
}
],
"fieldConfig": {
"defaults": {
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "red",
"value": null
},
{
"color": "green",
"value": 1
}
]
},
"color": {
"mode": "thresholds"
},
"mappings": [
{
"type": "value",
"options": {
"0": {
"text": "Injoignable",
"color": "red"
},
"1": {
"text": "Joignable",
"color": "green"
}
}
}
]
},
"overrides": []
},
"options": {
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"colorMode": "background",
"graphMode": "area",
"textMode": "auto"
},
"description": "Prometheus joint-il /metrics ?"
},
{
"id": 2,
"type": "stat",
"title": "Débit",
"gridPos": {
"x": 6,
"y": 0,
"w": 6,
"h": 4
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "sum(rate(http_requests_total{job=\"backend\"}[5m]))",
"legendFormat": "",
"range": true
}
],
"fieldConfig": {
"defaults": {
"unit": "reqps",
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "blue",
"value": null
}
]
},
"color": {
"mode": "thresholds"
}
},
"overrides": []
},
"options": {
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"colorMode": "background",
"graphMode": "area",
"textMode": "auto"
}
},
{
"id": 3,
"type": "stat",
"title": "Erreurs 5xx",
"gridPos": {
"x": 12,
"y": 0,
"w": 6,
"h": 4
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "sum(rate(http_requests_total{job=\"backend\", status=\"5xx\"}[5m])) / sum(rate(http_requests_total{job=\"backend\"}[5m]))",
"legendFormat": "",
"range": true
}
],
"fieldConfig": {
"defaults": {
"unit": "percentunit",
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "orange",
"value": 0.01
},
{
"color": "red",
"value": 0.05
}
]
},
"color": {
"mode": "thresholds"
}
},
"overrides": []
},
"options": {
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"colorMode": "background",
"graphMode": "area",
"textMode": "auto"
},
"description": "Seuil d'alerte : 5 % pendant 5 minutes."
},
{
"id": 4,
"type": "stat",
"title": "Latence p95",
"gridPos": {
"x": 18,
"y": 0,
"w": 6,
"h": 4
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "histogram_quantile(0.95, sum by (le) (rate(http_request_duration_highr_seconds_bucket{job=\"backend\"}[5m])))",
"legendFormat": "",
"range": true
}
],
"fieldConfig": {
"defaults": {
"unit": "s",
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "orange",
"value": 0.5
},
{
"color": "red",
"value": 1
}
]
},
"color": {
"mode": "thresholds"
}
},
"overrides": []
},
"options": {
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"colorMode": "background",
"graphMode": "area",
"textMode": "auto"
},
"description": "Seuil de charge : 500 ms (ADR 0015). Alerte au-delà d'une seconde pendant 10 minutes."
},
{
"id": 5,
"type": "timeseries",
"title": "Débit par route",
"gridPos": {
"x": 0,
"y": 4,
"w": 12,
"h": 8
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "sum by (handler) (rate(http_requests_total{job=\"backend\"}[1m]))",
"legendFormat": "{{handler}}",
"range": true
}
],
"fieldConfig": {
"defaults": {
"unit": "reqps"
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "desc"
}
}
},
{
"id": 6,
"type": "timeseries",
"title": "Latence de l'API",
"gridPos": {
"x": 12,
"y": 4,
"w": 12,
"h": 8
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "histogram_quantile(0.50, sum by (le) (rate(http_request_duration_highr_seconds_bucket{job=\"backend\"}[1m])))",
"legendFormat": "p50",
"range": true
},
{
"refId": "B",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "histogram_quantile(0.95, sum by (le) (rate(http_request_duration_highr_seconds_bucket{job=\"backend\"}[1m])))",
"legendFormat": "p95",
"range": true
},
{
"refId": "C",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "histogram_quantile(0.99, sum by (le) (rate(http_request_duration_highr_seconds_bucket{job=\"backend\"}[1m])))",
"legendFormat": "p99",
"range": true
}
],
"fieldConfig": {
"defaults": {
"unit": "s"
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "desc"
}
}
},
{
"id": 7,
"type": "timeseries",
"title": "Latence p95 par route",
"gridPos": {
"x": 0,
"y": 12,
"w": 12,
"h": 8
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "histogram_quantile(0.95, sum by (le, handler) (rate(http_request_duration_seconds_bucket{job=\"backend\"}[5m])))",
"legendFormat": "{{handler}}",
"range": true
}
],
"fieldConfig": {
"defaults": {
"unit": "s"
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "desc"
}
},
"description": "Estimée sur les seaux 50 ms à 2,5 s de http_request_duration_seconds."
},
{
"id": 8,
"type": "timeseries",
"title": "Réponses par classe de statut",
"gridPos": {
"x": 12,
"y": 12,
"w": 12,
"h": 8
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "sum by (status) (rate(http_requests_total{job=\"backend\"}[1m]))",
"legendFormat": "{{status}}",
"range": true
}
],
"fieldConfig": {
"defaults": {
"unit": "reqps"
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "desc"
}
}
},
{
"id": 9,
"type": "timeseries",
"title": "Mémoire du processus API",
"gridPos": {
"x": 0,
"y": 20,
"w": 12,
"h": 8
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "process_resident_memory_bytes{job=\"backend\"}",
"legendFormat": "résidente",
"range": true
}
],
"fieldConfig": {
"defaults": {
"unit": "bytes"
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "desc"
}
}
},
{
"id": 10,
"type": "timeseries",
"title": "Requêtes en cours de traitement",
"gridPos": {
"x": 12,
"y": 20,
"w": 12,
"h": 8
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "sum(rate(http_request_duration_highr_seconds_sum{job=\"backend\"}[1m]))",
"legendFormat": "secondes de traitement par seconde",
"range": true
}
],
"fieldConfig": {
"defaults": {
"unit": "short"
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "desc"
}
},
"description": "Loi de Little : durée moyenne multipliée par le débit, soit le nombre moyen de requêtes simultanées."
}
]
}
+528
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@@ -0,0 +1,528 @@
{
"uid": "enervision-donnees",
"title": "EnerVision · Données et modèle",
"description": "Fraîcheur des relevés, alertes métier et dérive du modèle, lus dans TimescaleDB par le rôle supervision.",
"tags": [
"enervision"
],
"timezone": "browser",
"editable": false,
"graphTooltip": 1,
"refresh": "1m",
"schemaVersion": 39,
"version": 1,
"time": {
"from": "now-7d",
"to": "now"
},
"templating": {
"list": []
},
"annotations": {
"list": []
},
"links": [],
"panels": [
{
"id": 1,
"type": "stat",
"title": "Sites suivis",
"gridPos": {
"x": 0,
"y": 0,
"w": 6,
"h": 4
},
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"rawSql": "SELECT count(*) AS \"Sites\" FROM site",
"format": "table",
"rawQuery": true,
"editorMode": "code"
}
],
"fieldConfig": {
"defaults": {
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "blue",
"value": null
}
]
},
"color": {
"mode": "thresholds"
}
},
"overrides": []
},
"options": {
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"colorMode": "background",
"graphMode": "area",
"textMode": "auto"
}
},
{
"id": 2,
"type": "stat",
"title": "Relevés sur 24 h",
"gridPos": {
"x": 6,
"y": 0,
"w": 6,
"h": 4
},
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"rawSql": "SELECT count(*) AS \"Relevés\" FROM reading WHERE timestamp > now() - interval '24 hours'",
"format": "table",
"rawQuery": true,
"editorMode": "code"
}
],
"fieldConfig": {
"defaults": {
"unit": "short",
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "red",
"value": null
},
{
"color": "green",
"value": 1
}
]
},
"color": {
"mode": "thresholds"
}
},
"overrides": []
},
"options": {
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"colorMode": "background",
"graphMode": "area",
"textMode": "auto"
},
"description": "Zéro : l'import de la Mock API ne tourne plus."
},
{
"id": 3,
"type": "stat",
"title": "Alertes sur 24 h",
"gridPos": {
"x": 12,
"y": 0,
"w": 6,
"h": 4
},
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"rawSql": "SELECT count(*) AS \"Alertes\" FROM alert WHERE timestamp > now() - interval '24 hours'",
"format": "table",
"rawQuery": true,
"editorMode": "code"
}
],
"fieldConfig": {
"defaults": {
"unit": "short",
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "orange",
"value": 1
},
{
"color": "red",
"value": 10
}
]
},
"color": {
"mode": "thresholds"
}
},
"overrides": []
},
"options": {
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"colorMode": "background",
"graphMode": "area",
"textMode": "auto"
}
},
{
"id": 4,
"type": "stat",
"title": "Sites en dérive",
"gridPos": {
"x": 18,
"y": 0,
"w": 6,
"h": 4
},
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"rawSql": "SELECT count(*) AS \"Sites\" FROM (SELECT DISTINCT ON (site_id) status FROM drift_report WHERE site_id IS NOT NULL ORDER BY site_id, computed_at DESC) AS derniers WHERE status = 'derive'",
"format": "table",
"rawQuery": true,
"editorMode": "code"
}
],
"fieldConfig": {
"defaults": {
"unit": "short",
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 1
}
]
},
"color": {
"mode": "thresholds"
}
},
"overrides": []
},
"options": {
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"colorMode": "background",
"graphMode": "area",
"textMode": "auto"
},
"description": "Dernier rapport de dérive de chaque site (ADR 0013)."
},
{
"id": 5,
"type": "table",
"title": "Fraîcheur des relevés par site",
"gridPos": {
"x": 0,
"y": 4,
"w": 12,
"h": 8
},
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"rawSql": "SELECT s.site_name AS \"Site\", max(r.timestamp) AS \"Dernier relevé\", round(extract(epoch FROM now() - max(r.timestamp)) / 60) AS \"Âge (min)\"\nFROM site AS s\nLEFT JOIN reading AS r ON r.site_id = s.site_id AND r.timestamp > now() - interval '7 days'\nGROUP BY s.site_name\nORDER BY 3 DESC NULLS FIRST",
"format": "table",
"rawQuery": true,
"editorMode": "code"
}
],
"fieldConfig": {
"defaults": {},
"overrides": []
},
"options": {
"showHeader": true
},
"description": "Un site sans relevé depuis sept jours apparaît vide, en tête de liste."
},
{
"id": 6,
"type": "table",
"title": "Dérive du modèle, dernier rapport",
"gridPos": {
"x": 12,
"y": 4,
"w": 12,
"h": 8
},
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"rawSql": "SELECT DISTINCT ON (d.site_id) coalesce(s.site_name, 'Tout le parc') AS \"Site\", d.status AS \"Statut\", round(d.mae::numeric, 2) AS \"MAE\", round(d.reference_mae::numeric, 2) AS \"MAE de référence\", round(d.bias::numeric, 2) AS \"Biais\", d.computed_at AS \"Calculé le\"\nFROM drift_report AS d\nLEFT JOIN site AS s ON s.site_id = d.site_id\nORDER BY d.site_id, d.computed_at DESC",
"format": "table",
"rawQuery": true,
"editorMode": "code"
}
],
"fieldConfig": {
"defaults": {},
"overrides": []
},
"options": {
"showHeader": true
},
"description": "Une ligne par site, plus la ligne globale (ADR 0013)."
},
{
"id": 7,
"type": "timeseries",
"title": "Consommation par site",
"gridPos": {
"x": 0,
"y": 12,
"w": 12,
"h": 8
},
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"rawSql": "SELECT $__timeGroupAlias(r.timestamp, $__interval), s.site_name AS metric, avg(r.consumption_kw) AS value\nFROM reading AS r\nJOIN site AS s ON s.site_id = r.site_id\nWHERE $__timeFilter(r.timestamp)\nGROUP BY 1, 2\nORDER BY 1",
"format": "time_series",
"rawQuery": true,
"editorMode": "code"
}
],
"fieldConfig": {
"defaults": {
"unit": "kwatt"
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "desc"
}
}
},
{
"id": 8,
"type": "timeseries",
"title": "Relevés ingérés par heure",
"gridPos": {
"x": 12,
"y": 12,
"w": 12,
"h": 8
},
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"rawSql": "SELECT time_bucket('1 hour', timestamp) AS time, count(*) AS \"Relevés\"\nFROM reading\nWHERE $__timeFilter(timestamp)\nGROUP BY 1\nORDER BY 1",
"format": "time_series",
"rawQuery": true,
"editorMode": "code"
}
],
"fieldConfig": {
"defaults": {
"unit": "short"
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "desc"
}
}
},
{
"id": 9,
"type": "timeseries",
"title": "Alertes par sévérité",
"gridPos": {
"x": 0,
"y": 20,
"w": 12,
"h": 8
},
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"rawSql": "SELECT time_bucket('1 hour', timestamp) AS time, severity AS metric, count(*) AS value\nFROM alert\nWHERE $__timeFilter(timestamp)\nGROUP BY 1, 2\nORDER BY 1",
"format": "time_series",
"rawQuery": true,
"editorMode": "code"
}
],
"fieldConfig": {
"defaults": {
"unit": "short"
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "desc"
}
}
},
{
"id": 10,
"type": "timeseries",
"title": "Erreur absolue moyenne du modèle",
"gridPos": {
"x": 12,
"y": 20,
"w": 12,
"h": 8
},
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "grafana-postgresql-datasource",
"uid": "timescaledb"
},
"rawSql": "SELECT d.computed_at AS time, coalesce(s.site_name, 'Tout le parc') AS metric, d.mae AS value\nFROM drift_report AS d\nLEFT JOIN site AS s ON s.site_id = d.site_id\nWHERE $__timeFilter(d.computed_at)\nORDER BY 1",
"format": "time_series",
"rawQuery": true,
"editorMode": "code"
}
],
"fieldConfig": {
"defaults": {
"unit": "kwatt"
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "desc"
}
}
}
]
}
+583
View File
@@ -0,0 +1,583 @@
{
"uid": "enervision-infra",
"title": "EnerVision · Infrastructure",
"description": "Hôte (node-exporter), conteneurs (cAdvisor) et PostgreSQL (postgres-exporter). L'hôte porte la recette et la prod.",
"tags": [
"enervision"
],
"timezone": "browser",
"editable": false,
"graphTooltip": 1,
"refresh": "30s",
"schemaVersion": 39,
"version": 1,
"time": {
"from": "now-6h",
"to": "now"
},
"templating": {
"list": []
},
"annotations": {
"list": []
},
"links": [],
"panels": [
{
"id": 1,
"type": "stat",
"title": "Mémoire de l'hôte",
"gridPos": {
"x": 0,
"y": 0,
"w": 6,
"h": 4
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "1 - node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes",
"legendFormat": "",
"range": true
}
],
"fieldConfig": {
"defaults": {
"unit": "percentunit",
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "orange",
"value": 0.8
},
{
"color": "red",
"value": 0.9
}
]
},
"color": {
"mode": "thresholds"
}
},
"overrides": []
},
"options": {
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"colorMode": "background",
"graphMode": "area",
"textMode": "auto"
},
"description": "Alerte au-delà de 90 % pendant 10 minutes."
},
{
"id": 2,
"type": "stat",
"title": "Processeur de l'hôte",
"gridPos": {
"x": 6,
"y": 0,
"w": 6,
"h": 4
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "1 - avg(rate(node_cpu_seconds_total{mode=\"idle\"}[5m]))",
"legendFormat": "",
"range": true
}
],
"fieldConfig": {
"defaults": {
"unit": "percentunit",
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
},
{
"color": "orange",
"value": 0.7
},
{
"color": "red",
"value": 0.9
}
]
},
"color": {
"mode": "thresholds"
}
},
"overrides": []
},
"options": {
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"colorMode": "background",
"graphMode": "area",
"textMode": "auto"
}
},
{
"id": 3,
"type": "stat",
"title": "Disque libre",
"gridPos": {
"x": 12,
"y": 0,
"w": 6,
"h": 4
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "node_filesystem_avail_bytes{mountpoint=\"/\", fstype!~\"tmpfs|overlay\"} / node_filesystem_size_bytes{mountpoint=\"/\", fstype!~\"tmpfs|overlay\"}",
"legendFormat": "",
"range": true
}
],
"fieldConfig": {
"defaults": {
"unit": "percentunit",
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "red",
"value": null
},
{
"color": "orange",
"value": 0.1
},
{
"color": "green",
"value": 0.2
}
]
},
"color": {
"mode": "thresholds"
}
},
"overrides": []
},
"options": {
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"colorMode": "background",
"graphMode": "area",
"textMode": "auto"
}
},
{
"id": 4,
"type": "stat",
"title": "PostgreSQL",
"gridPos": {
"x": 18,
"y": 0,
"w": 6,
"h": 4
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "pg_up",
"legendFormat": "",
"range": true
}
],
"fieldConfig": {
"defaults": {
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "red",
"value": null
},
{
"color": "green",
"value": 1
}
]
},
"color": {
"mode": "thresholds"
},
"mappings": [
{
"type": "value",
"options": {
"0": {
"text": "Injoignable",
"color": "red"
},
"1": {
"text": "Joignable",
"color": "green"
}
}
}
]
},
"overrides": []
},
"options": {
"reduceOptions": {
"calcs": [
"lastNotNull"
],
"fields": "",
"values": false
},
"colorMode": "background",
"graphMode": "area",
"textMode": "auto"
}
},
{
"id": 5,
"type": "timeseries",
"title": "Mémoire par conteneur",
"gridPos": {
"x": 0,
"y": 4,
"w": 12,
"h": 8
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "sum by (name) (container_memory_working_set_bytes{name!=\"\"})",
"legendFormat": "{{name}}",
"range": true
}
],
"fieldConfig": {
"defaults": {
"unit": "bytes"
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "desc"
}
},
"description": "Recette et prod partagent l'hôte : leurs conteneurs se distinguent par le préfixe du projet Compose."
},
{
"id": 6,
"type": "timeseries",
"title": "Processeur par conteneur",
"gridPos": {
"x": 12,
"y": 4,
"w": 12,
"h": 8
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "sum by (name) (rate(container_cpu_usage_seconds_total{name!=\"\"}[5m]))",
"legendFormat": "{{name}}",
"range": true
}
],
"fieldConfig": {
"defaults": {
"unit": "short"
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "desc"
}
}
},
{
"id": 7,
"type": "timeseries",
"title": "Mémoire de l'hôte",
"gridPos": {
"x": 0,
"y": 12,
"w": 12,
"h": 8
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "node_memory_MemTotal_bytes - node_memory_MemAvailable_bytes",
"legendFormat": "utilisée",
"range": true
},
{
"refId": "B",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "node_memory_MemTotal_bytes",
"legendFormat": "totale",
"range": true
}
],
"fieldConfig": {
"defaults": {
"unit": "bytes"
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "desc"
}
}
},
{
"id": 8,
"type": "timeseries",
"title": "Connexions PostgreSQL par état",
"gridPos": {
"x": 12,
"y": 12,
"w": 12,
"h": 8
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "sum by (state) (pg_stat_activity_count)",
"legendFormat": "{{state}}",
"range": true
},
{
"refId": "B",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "max(pg_settings_max_connections)",
"legendFormat": "maximum",
"range": true
}
],
"fieldConfig": {
"defaults": {
"unit": "short"
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "desc"
}
}
},
{
"id": 9,
"type": "timeseries",
"title": "Transactions validées par base",
"gridPos": {
"x": 0,
"y": 20,
"w": 12,
"h": 8
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "sum by (datname) (rate(pg_stat_database_xact_commit{datname!~\"template.*|postgres\"}[5m]))",
"legendFormat": "{{datname}}",
"range": true
}
],
"fieldConfig": {
"defaults": {
"unit": "ops"
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "desc"
}
}
},
{
"id": 10,
"type": "timeseries",
"title": "Taille des bases",
"gridPos": {
"x": 12,
"y": 20,
"w": 12,
"h": 8
},
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"targets": [
{
"refId": "A",
"datasource": {
"type": "prometheus",
"uid": "prometheus"
},
"expr": "pg_database_size_bytes{datname!~\"template.*|postgres\"}",
"legendFormat": "{{datname}}",
"range": true
}
],
"fieldConfig": {
"defaults": {
"unit": "bytes"
},
"overrides": []
},
"options": {
"legend": {
"displayMode": "list",
"placement": "bottom",
"showLegend": true
},
"tooltip": {
"mode": "multi",
"sort": "desc"
}
}
}
]
}
@@ -0,0 +1,10 @@
apiVersion: 1
providers:
- name: enervision
folder: EnerVision
type: file
disableDeletion: true
allowUiUpdates: false
options:
path: /etc/grafana/dashboards
@@ -0,0 +1,28 @@
# Pourquoi : Grafana lit la base avec le rôle `supervision`, en lecture seule sur les seules tables
# métier (db/roles/supervision.sql) - datasources.yml. Jamais le compte applicatif.
apiVersion: 1
datasources:
- name: Prometheus
uid: prometheus
type: prometheus
access: proxy
url: http://prometheus:9090
isDefault: true
editable: false
- name: TimescaleDB
uid: timescaledb
type: grafana-postgresql-datasource
access: proxy
url: db:5432
user: supervision
jsonData:
database: ${POSTGRES_DB}
sslmode: disable
postgresVersion: 1700
timescaledb: true
secureJsonData:
password: ${SUPERVISION_DB_PASSWORD}
editable: false