5d7a3cbcc1
- Backend DB komplett auf PostgreSQL 17 + TimescaleDB 2.25.1 umgestellt - pgx pure-Go Driver (kein CGO), modernc/sqlite entfernt - Hypertable 'metrics' fuer Time-Series Daten - Automatische Metrik-Extraktion bei jedem Heartbeat: CPU, RAM, Uptime, Disk, Network-Traffic, Gateway RTT/Loss - Retention Policy: 90 Tage, Compression nach 7 Tagen - Neue API-Endpoints: GET /metrics (raw) + GET /metrics/summary (aggregiert) - time_bucket() Aggregation (5min, 1h, etc.) - config.yaml: database-Block statt db_path - docs/POSTGRES_SETUP.md: Installationsanleitung - README aktualisiert
84 lines
2.0 KiB
Go
84 lines
2.0 KiB
Go
package api
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import (
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"net/http"
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"strconv"
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"time"
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)
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// GET /api/v1/agents/{id}/metrics — Metriken abfragen
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func (h *Handler) getMetrics() http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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agentID := r.PathValue("id")
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metric := r.URL.Query().Get("metric")
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// Zeitraum (default: letzte 24h)
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from := time.Now().Add(-24 * time.Hour)
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to := time.Now()
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if f := r.URL.Query().Get("from"); f != "" {
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if t, err := time.Parse(time.RFC3339, f); err == nil {
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from = t
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}
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}
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if t := r.URL.Query().Get("to"); t != "" {
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if parsed, err := time.Parse(time.RFC3339, t); err == nil {
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to = parsed
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}
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}
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limit := 1000
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if l := r.URL.Query().Get("limit"); l != "" {
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if parsed, err := strconv.Atoi(l); err == nil && parsed > 0 {
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limit = parsed
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}
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}
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results, err := h.db.GetMetrics(agentID, metric, from, to, limit)
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if err != nil {
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writeError(w, http.StatusInternalServerError, "Metriken laden fehlgeschlagen")
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return
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}
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writeJSON(w, http.StatusOK, results)
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}
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}
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// GET /api/v1/agents/{id}/metrics/summary — Aggregierte Metriken (Durchschnitt/Min/Max)
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func (h *Handler) getMetricsSummary() http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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agentID := r.PathValue("id")
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metric := r.URL.Query().Get("metric")
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if metric == "" {
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writeError(w, http.StatusBadRequest, "Parameter 'metric' erforderlich")
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return
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}
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bucket := r.URL.Query().Get("bucket")
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if bucket == "" {
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bucket = "5 minutes"
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}
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from := time.Now().Add(-24 * time.Hour)
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to := time.Now()
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if f := r.URL.Query().Get("from"); f != "" {
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if t, err := time.Parse(time.RFC3339, f); err == nil {
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from = t
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}
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}
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if t := r.URL.Query().Get("to"); t != "" {
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if parsed, err := time.Parse(time.RFC3339, t); err == nil {
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to = parsed
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}
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}
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results, err := h.db.GetMetricsSummary(agentID, metric, bucket, from, to)
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if err != nil {
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writeError(w, http.StatusInternalServerError, "Metriken laden fehlgeschlagen")
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return
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}
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writeJSON(w, http.StatusOK, results)
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}
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}
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