{
  "title": "Caddy",
  "uid": "jallen-caddy",
  "schemaVersion": 38,
  "version": 1,
  "refresh": "30s",
  "time": { "from": "now-1h", "to": "now" },
  "templating": {
    "list": [
      {
        "name": "datasource",
        "type": "datasource",
        "query": "prometheus",
        "current": {},
        "hide": 0,
        "label": "Datasource"
      },
      {
        "name": "handler",
        "type": "query",
        "datasource": { "type": "prometheus", "uid": "$datasource" },
        "query": "label_values(caddy_http_requests_total, handler)",
        "refresh": 2,
        "includeAll": true,
        "allValue": ".*",
        "label": "Handler"
      }
    ]
  },
  "panels": [
    {
      "id": 1,
      "type": "stat",
      "title": "Request Rate (5m)",
      "gridPos": { "x": 0, "y": 0, "w": 4, "h": 4 },
      "options": { "reduceOptions": { "calcs": ["lastNotNull"] } },
      "fieldConfig": {
        "defaults": {
          "unit": "reqps",
          "thresholds": {
            "mode": "absolute",
            "steps": [{ "color": "blue", "value": null }]
          },
          "color": { "mode": "thresholds" }
        }
      },
      "targets": [
        {
          "expr": "sum(rate(caddy_http_requests_total[5m]))",
          "legendFormat": "req/s",
          "datasource": { "type": "prometheus", "uid": "$datasource" }
        }
      ]
    },
    {
      "id": 2,
      "type": "stat",
      "title": "Error Rate (5m)",
      "gridPos": { "x": 4, "y": 0, "w": 4, "h": 4 },
      "options": { "reduceOptions": { "calcs": ["lastNotNull"] } },
      "fieldConfig": {
        "defaults": {
          "unit": "reqps",
          "thresholds": {
            "mode": "absolute",
            "steps": [
              { "color": "green", "value": null },
              { "color": "red", "value": 0.01 }
            ]
          },
          "color": { "mode": "thresholds" }
        }
      },
      "targets": [
        {
          "expr": "sum(rate(caddy_http_requests_total{code=~\"5..\"}[5m]))",
          "legendFormat": "5xx/s",
          "datasource": { "type": "prometheus", "uid": "$datasource" }
        }
      ]
    },
    {
      "id": 3,
      "type": "stat",
      "title": "Active Requests",
      "gridPos": { "x": 8, "y": 0, "w": 4, "h": 4 },
      "options": { "reduceOptions": { "calcs": ["lastNotNull"] } },
      "fieldConfig": {
        "defaults": {
          "thresholds": {
            "mode": "absolute",
            "steps": [{ "color": "blue", "value": null }]
          },
          "color": { "mode": "thresholds" }
        }
      },
      "targets": [
        {
          "expr": "sum(caddy_http_active_requests)",
          "legendFormat": "active",
          "datasource": { "type": "prometheus", "uid": "$datasource" }
        }
      ]
    },
    {
      "id": 4,
      "type": "stat",
      "title": "P99 Latency (5m)",
      "gridPos": { "x": 12, "y": 0, "w": 4, "h": 4 },
      "options": { "reduceOptions": { "calcs": ["lastNotNull"] } },
      "fieldConfig": {
        "defaults": {
          "unit": "s",
          "decimals": 3,
          "thresholds": {
            "mode": "absolute",
            "steps": [
              { "color": "green", "value": null },
              { "color": "yellow", "value": 0.5 },
              { "color": "red", "value": 2 }
            ]
          },
          "color": { "mode": "thresholds" }
        }
      },
      "targets": [
        {
          "expr": "histogram_quantile(0.99, sum(rate(caddy_http_request_duration_seconds_bucket[5m])) by (le))",
          "legendFormat": "P99",
          "datasource": { "type": "prometheus", "uid": "$datasource" }
        }
      ]
    },
    {
      "id": 5,
      "type": "stat",
      "title": "Total Bytes Received",
      "gridPos": { "x": 16, "y": 0, "w": 4, "h": 4 },
      "options": { "reduceOptions": { "calcs": ["lastNotNull"] } },
      "fieldConfig": {
        "defaults": {
          "unit": "bytes",
          "thresholds": {
            "mode": "absolute",
            "steps": [{ "color": "blue", "value": null }]
          },
          "color": { "mode": "thresholds" }
        }
      },
      "targets": [
        {
          "expr": "sum(caddy_http_request_size_bytes_sum)",
          "legendFormat": "bytes in",
          "datasource": { "type": "prometheus", "uid": "$datasource" }
        }
      ]
    },
    {
      "id": 6,
      "type": "stat",
      "title": "Total Bytes Sent",
      "gridPos": { "x": 20, "y": 0, "w": 4, "h": 4 },
      "options": { "reduceOptions": { "calcs": ["lastNotNull"] } },
      "fieldConfig": {
        "defaults": {
          "unit": "bytes",
          "thresholds": {
            "mode": "absolute",
            "steps": [{ "color": "blue", "value": null }]
          },
          "color": { "mode": "thresholds" }
        }
      },
      "targets": [
        {
          "expr": "sum(caddy_http_response_size_bytes_sum)",
          "legendFormat": "bytes out",
          "datasource": { "type": "prometheus", "uid": "$datasource" }
        }
      ]
    },
    {
      "id": 7,
      "type": "timeseries",
      "title": "Request Rate by Status Code",
      "gridPos": { "x": 0, "y": 4, "w": 12, "h": 8 },
      "fieldConfig": {
        "defaults": {
          "unit": "reqps",
          "custom": { "lineWidth": 2, "fillOpacity": 5 }
        },
        "overrides": [
          { "matcher": { "id": "byName", "options": "5xx" }, "properties": [{ "id": "color", "value": { "fixedColor": "red", "mode": "fixed" } }] },
          { "matcher": { "id": "byName", "options": "4xx" }, "properties": [{ "id": "color", "value": { "fixedColor": "orange", "mode": "fixed" } }] },
          { "matcher": { "id": "byName", "options": "2xx" }, "properties": [{ "id": "color", "value": { "fixedColor": "green", "mode": "fixed" } }] },
          { "matcher": { "id": "byName", "options": "3xx" }, "properties": [{ "id": "color", "value": { "fixedColor": "blue", "mode": "fixed" } }] }
        ]
      },
      "targets": [
        {
          "expr": "sum(rate(caddy_http_requests_total{code=~\"2..\"}[5m]))",
          "legendFormat": "2xx",
          "datasource": { "type": "prometheus", "uid": "$datasource" }
        },
        {
          "expr": "sum(rate(caddy_http_requests_total{code=~\"3..\"}[5m]))",
          "legendFormat": "3xx",
          "datasource": { "type": "prometheus", "uid": "$datasource" }
        },
        {
          "expr": "sum(rate(caddy_http_requests_total{code=~\"4..\"}[5m]))",
          "legendFormat": "4xx",
          "datasource": { "type": "prometheus", "uid": "$datasource" }
        },
        {
          "expr": "sum(rate(caddy_http_requests_total{code=~\"5..\"}[5m]))",
          "legendFormat": "5xx",
          "datasource": { "type": "prometheus", "uid": "$datasource" }
        }
      ]
    },
    {
      "id": 8,
      "type": "timeseries",
      "title": "Request Latency Percentiles",
      "gridPos": { "x": 12, "y": 4, "w": 12, "h": 8 },
      "fieldConfig": {
        "defaults": {
          "unit": "s",
          "decimals": 3,
          "custom": { "lineWidth": 2 }
        }
      },
      "targets": [
        {
          "expr": "histogram_quantile(0.50, sum(rate(caddy_http_request_duration_seconds_bucket[5m])) by (le))",
          "legendFormat": "P50",
          "datasource": { "type": "prometheus", "uid": "$datasource" }
        },
        {
          "expr": "histogram_quantile(0.90, sum(rate(caddy_http_request_duration_seconds_bucket[5m])) by (le))",
          "legendFormat": "P90",
          "datasource": { "type": "prometheus", "uid": "$datasource" }
        },
        {
          "expr": "histogram_quantile(0.99, sum(rate(caddy_http_request_duration_seconds_bucket[5m])) by (le))",
          "legendFormat": "P99",
          "datasource": { "type": "prometheus", "uid": "$datasource" }
        }
      ]
    },
    {
      "id": 9,
      "type": "timeseries",
      "title": "Request Rate by Handler",
      "gridPos": { "x": 0, "y": 12, "w": 12, "h": 8 },
      "fieldConfig": {
        "defaults": {
          "unit": "reqps",
          "custom": { "lineWidth": 2, "fillOpacity": 5 }
        }
      },
      "targets": [
        {
          "expr": "sum(rate(caddy_http_requests_total{handler=~\"$handler\"}[5m])) by (handler)",
          "legendFormat": "{{handler}}",
          "datasource": { "type": "prometheus", "uid": "$datasource" }
        }
      ]
    },
    {
      "id": 10,
      "type": "timeseries",
      "title": "Bandwidth",
      "gridPos": { "x": 12, "y": 12, "w": 12, "h": 8 },
      "fieldConfig": {
        "defaults": {
          "unit": "Bps",
          "custom": { "lineWidth": 2, "fillOpacity": 10 }
        }
      },
      "targets": [
        {
          "expr": "sum(rate(caddy_http_request_size_bytes_sum[5m]))",
          "legendFormat": "Inbound",
          "datasource": { "type": "prometheus", "uid": "$datasource" }
        },
        {
          "expr": "sum(rate(caddy_http_response_size_bytes_sum[5m]))",
          "legendFormat": "Outbound",
          "datasource": { "type": "prometheus", "uid": "$datasource" }
        }
      ]
    }
  ]
}