{
  "dashboard": {
    "title": "trails.cool Overview",
    "uid": "trails-overview",
    "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(http_request_duration_seconds_count{status=~\"5..\"}[5m])) / sum(rate(http_request_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" } } }] }
        }
      }
    ]
  }
}