Files
Julia McGhee 051c957347 Add observability stack: ServiceMonitors, Tempo, OTel API instrumentation, dashboards
- Add ServiceMonitors for Traefik, ArgoCD, and Longhorn
- Enable cert-manager ServiceMonitor via helm values
- Deploy Grafana Tempo for distributed tracing (single-binary, Longhorn PVC)
- Add Tempo datasource with trace-to-logs and trace-to-metrics correlation
- Instrument API with OpenTelemetry SDK (Prometheus metrics + OTLP traces)
- Replace console.log with pino structured logging + pino-http middleware
- Add Grafana dashboards for Traefik, API overview, and PostgreSQL (CNPG)
2026-03-20 21:01:05 +00:00

89 lines
2.8 KiB
YAML

apiVersion: v1
kind: ConfigMap
metadata:
name: api-overview-dashboard
namespace: observability
labels:
grafana_dashboard: "1"
data:
api-overview.json: |
{
"annotations": { "list": [] },
"editable": true,
"graphTooltip": 1,
"id": null,
"links": [],
"panels": [
{
"title": "HTTP Request Rate",
"type": "timeseries",
"gridPos": { "h": 8, "w": 12, "x": 0, "y": 0 },
"targets": [
{
"expr": "sum(rate(http_server_request_duration_seconds_count{service_name=\"api\"}[5m])) by (http_route)",
"legendFormat": "{{ http_route }}"
}
],
"fieldConfig": {
"defaults": { "unit": "reqps" }
}
},
{
"title": "HTTP Error Rate",
"type": "timeseries",
"gridPos": { "h": 8, "w": 12, "x": 12, "y": 0 },
"targets": [
{
"expr": "sum(rate(http_server_request_duration_seconds_count{service_name=\"api\", http_status_code=~\"5..\"}[5m])) by (http_route)",
"legendFormat": "{{ http_route }}"
}
],
"fieldConfig": {
"defaults": { "unit": "reqps" }
}
},
{
"title": "HTTP Request Duration (p50 / p95 / p99)",
"type": "timeseries",
"gridPos": { "h": 8, "w": 12, "x": 0, "y": 8 },
"targets": [
{
"expr": "histogram_quantile(0.50, sum(rate(http_server_request_duration_seconds_bucket{service_name=\"api\"}[5m])) by (le))",
"legendFormat": "p50"
},
{
"expr": "histogram_quantile(0.95, sum(rate(http_server_request_duration_seconds_bucket{service_name=\"api\"}[5m])) by (le))",
"legendFormat": "p95"
},
{
"expr": "histogram_quantile(0.99, sum(rate(http_server_request_duration_seconds_bucket{service_name=\"api\"}[5m])) by (le))",
"legendFormat": "p99"
}
],
"fieldConfig": {
"defaults": { "unit": "s" }
}
},
{
"title": "DB Query Duration",
"type": "timeseries",
"gridPos": { "h": 8, "w": 12, "x": 12, "y": 8 },
"targets": [
{
"expr": "histogram_quantile(0.95, sum(rate(db_client_operation_duration_bucket{service_name=\"api\"}[5m])) by (le, db_operation_name))",
"legendFormat": "p95 {{ db_operation_name }}"
}
],
"fieldConfig": {
"defaults": { "unit": "s" }
}
}
],
"schemaVersion": 39,
"tags": ["homelab", "api", "otel"],
"templating": { "list": [] },
"time": { "from": "now-6h", "to": "now" },
"title": "API Overview",
"uid": "api-overview"
}