trails/infrastructure/grafana/dashboards/overview.json
Ullrich Schäfer 7994ea79f4
Fix overview error rate panel, add request metrics to journal
Dashboard: switch error rate panel from app-level http_request_duration
(never observed) to Caddy's caddy_http_response_duration_seconds_count.

Journal: add custom server.ts (matching planner pattern) that observes
http_request_duration_seconds on every request. Replaces react-router-serve
with a custom Node HTTP server that handles /api/health, /api/metrics,
static assets, and request timing. Removes redundant React Router routes
for health and metrics.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-05 16:20:18 +02:00

142 lines
3 KiB
JSON

{
"title": "trails.cool Overview",
"uid": "trails-overview",
"annotations": {
"list": [
{
"name": "Deploys",
"enable": true,
"datasource": {
"type": "grafana",
"uid": "-- Grafana --"
},
"iconColor": "rgba(0, 211, 255, 1)",
"target": {
"limit": 100,
"matchAny": false,
"tags": [
"deploy"
],
"type": "tags"
}
}
]
},
"timezone": "browser",
"refresh": "30s",
"panels": [
{
"title": "Request Rate",
"type": "timeseries",
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 0
},
"targets": [
{
"expr": "sum(rate(http_request_duration_seconds_count[5m])) by (job)",
"legendFormat": "{{job}}"
}
]
},
{
"title": "Error Rate",
"type": "timeseries",
"gridPos": {
"h": 8,
"w": 12,
"x": 12,
"y": 0
},
"targets": [
{
"expr": "sum(rate(caddy_http_response_duration_seconds_count{code=~\"5..\"}[5m])) / sum(rate(caddy_http_response_duration_seconds_count[5m])) * 100",
"legendFormat": "Error %"
}
],
"fieldConfig": {
"defaults": {
"unit": "percent",
"thresholds": {
"steps": [
{
"color": "green",
"value": null
},
{
"color": "red",
"value": 5
}
]
}
}
}
},
{
"title": "Latency p50 / p95 / p99",
"type": "timeseries",
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 8
},
"targets": [
{
"expr": "histogram_quantile(0.50, sum(rate(http_request_duration_seconds_bucket[5m])) by (le))",
"legendFormat": "p50"
},
{
"expr": "histogram_quantile(0.95, sum(rate(http_request_duration_seconds_bucket[5m])) by (le))",
"legendFormat": "p95"
},
{
"expr": "histogram_quantile(0.99, sum(rate(http_request_duration_seconds_bucket[5m])) by (le))",
"legendFormat": "p99"
}
],
"fieldConfig": {
"defaults": {
"unit": "s"
}
}
},
{
"title": "Health Status",
"type": "stat",
"gridPos": {
"h": 8,
"w": 12,
"x": 12,
"y": 8
},
"targets": [
{
"expr": "up",
"legendFormat": "{{job}}"
}
],
"fieldConfig": {
"defaults": {
"mappings": [
{
"type": "value",
"options": {
"0": {
"text": "DOWN",
"color": "red"
},
"1": {
"text": "UP",
"color": "green"
}
}
}
]
}
}
}
]
}