{
"title": "Homelab / Caddy",
"uid": "homelab-caddy",
"tags": ["homelab", "caddy", "http"],
"schemaVersion": 39,
"version": 3,
"editable": false,
"refresh": "30s",
"time": { "from": "now-3h", "to": "now" },
"templating": {
"list": [
{
"name": "host",
"type": "query",
"datasource": { "type": "prometheus", "uid": "prom-homelab" },
"query": "label_values(caddy_http_requests_total, host)",
"includeAll": true,
"multi": true,
"refresh": 2
}
]
},
"panels": [
{
"type": "stat",
"title": "Requests/s",
"id": 1,
"gridPos": { "x": 0, "y": 0, "w": 6, "h": 4 },
"datasource": { "type": "prometheus", "uid": "prom-homelab" },
"targets": [
{
"expr": "sum(rate(caddy_http_requests_total{host=~\"$host\"}[5m]))",
"refId": "A"
}
],
"fieldConfig": { "defaults": { "unit": "reqps" } }
},
{
"type": "stat",
"title": "5xx rate",
"id": 2,
"gridPos": { "x": 6, "y": 0, "w": 6, "h": 4 },
"datasource": { "type": "prometheus", "uid": "prom-homelab" },
"targets": [
{
"expr": "sum(rate(caddy_http_requests_total{host=~\"$host\",code=~\"5..\"}[5m])) / sum(rate(caddy_http_requests_total{host=~\"$host\"}[5m]))",
"refId": "A"
}
],
"fieldConfig": {
"defaults": {
"unit": "percentunit",
"thresholds": {
"mode": "absolute",
"steps": [
{ "color": "green", "value": null },
{ "color": "orange", "value": 0.01 },
{ "color": "red", "value": 0.05 }
]
}
}
}
},
{
"type": "stat",
"title": "p95 latency",
"id": 3,
"gridPos": { "x": 12, "y": 0, "w": 6, "h": 4 },
"datasource": { "type": "prometheus", "uid": "prom-homelab" },
"targets": [
{
"expr": "histogram_quantile(0.95, sum by (le) (rate(caddy_http_request_duration_seconds_bucket{host=~\"$host\"}[5m])))",
"refId": "A"
}
],
"fieldConfig": { "defaults": { "unit": "s" } }
},
{
"type": "stat",
"title": "Active connections",
"id": 4,
"gridPos": { "x": 18, "y": 0, "w": 6, "h": 4 },
"datasource": { "type": "prometheus", "uid": "prom-homelab" },
"targets": [
{ "expr": "sum(caddy_reverse_proxy_upstreams_healthy)", "refId": "A" }
]
},
{
"type": "timeseries",
"title": "Requests by status class",
"id": 10,
"gridPos": { "x": 0, "y": 4, "w": 12, "h": 10 },
"datasource": { "type": "prometheus", "uid": "prom-homelab" },
"targets": [
{
"expr": "sum by (code) (rate(caddy_http_requests_total{host=~\"$host\"}[5m]))",
"legendFormat": "{{code}}",
"refId": "A"
}
]
},
{
"type": "timeseries",
"title": "Latency quantiles",
"id": 11,
"gridPos": { "x": 12, "y": 4, "w": 12, "h": 10 },
"datasource": { "type": "prometheus", "uid": "prom-homelab" },
"targets": [
{
"expr": "histogram_quantile(0.50, sum by (le) (rate(caddy_http_request_duration_seconds_bucket{host=~\"$host\"}[5m])))",
"legendFormat": "p50",
"refId": "A"
},
{
"expr": "histogram_quantile(0.95, sum by (le) (rate(caddy_http_request_duration_seconds_bucket{host=~\"$host\"}[5m])))",
"legendFormat": "p95",
"refId": "B"
},
{
"expr": "histogram_quantile(0.99, sum by (le) (rate(caddy_http_request_duration_seconds_bucket{host=~\"$host\"}[5m])))",
"legendFormat": "p99",
"refId": "C"
}
],
"fieldConfig": { "defaults": { "unit": "s" } }
},
{
"type": "timeseries",
"title": "Requests by host",
"id": 12,
"gridPos": { "x": 0, "y": 14, "w": 12, "h": 10 },
"datasource": { "type": "prometheus", "uid": "prom-homelab" },
"targets": [
{
"expr": "sum by (host) (rate(caddy_http_requests_total[5m]))",
"legendFormat": "{{host}}",
"refId": "A"
}
]
},
{
"type": "logs",
"title": "Recent 5xx",
"id": 13,
"gridPos": { "x": 12, "y": 14, "w": 12, "h": 10 },
"datasource": { "type": "loki", "uid": "loki-homelab" },
"targets": [
{
"expr": "{service=\"caddy\", status=~\"5..\"}",
"refId": "A"
}
],
"options": { "showTime": true, "wrapLogMessage": true, "dedupStrategy": "none" }
}
]
}