Sync Prometheus config with working VM102 and NAS scrape targets.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/monitoring/docker-compose.monitoring.yml

@@ -0,0 +1,70 @@
+# Monitoring stack — Prometheus + postgres-exporter + Grafana
+# Start: cd monitoring && docker compose up -d --build
+# UI: Grafana http://192.168.1.211:3002 · Prometheus http://192.168.1.211:9090
+
+services:
+  prometheus:
+    image: prom/prometheus:v2.53.2
+    container_name: prometheus-homelab
+    restart: unless-stopped
+    ports:
+      - "9090:9090"
+    volumes:
+      - ./prometheus.yml:/etc/prometheus/prometheus.yml:ro
+      - ./prometheus/targets:/etc/prometheus/targets:ro
+      - prometheus-homelab-data:/prometheus
+    command:
+      - --config.file=/etc/prometheus/prometheus.yml
+      - --storage.tsdb.path=/prometheus
+      - --web.enable-lifecycle
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+    networks:
+      - homelab-monitor
+
+  postgres-exporter:
+    image: prometheuscommunity/postgres-exporter:latest
+    container_name: postgres-exporter
+    restart: unless-stopped
+    ports:
+      - "9187:9187"
+    environment:
+      DATA_SOURCE_NAME: "postgresql://mo:${PG_PASSWORD:-WaQTUw2t}@192.168.1.105:5433/homelab?sslmode=disable"
+    networks:
+      - homelab-monitor
+
+  grafana:
+    build:
+      context: ..
+      dockerfile: Dockerfile.grafana
+    image: grafana-homelab:latest
+    container_name: grafana-homelab
+    restart: unless-stopped
+    ports:
+      - "3002:3000"
+    environment:
+      GF_SECURITY_ADMIN_USER: admin
+      GF_SECURITY_ADMIN_PASSWORD: ${GRAFANA_ADMIN_PASSWORD:-WaQTUw2t}
+      GF_USERS_DEFAULT_THEME: dark
+      GF_SERVER_ROOT_URL: http://192.168.1.211:3002
+      PG_USER: mo
+      PG_DATABASE: homelab
+      HOMELAB_PG_PASSWORD: ${PG_PASSWORD:-WaQTUw2t}
+    volumes:
+      - grafana-homelab-data:/var/lib/grafana
+      - ../grafana/provisioning/dashboards:/etc/grafana/provisioning/dashboards:ro
+      - ../grafana/dashboards/homelab:/var/lib/grafana/dashboards/homelab:ro
+      - ../grafana/dashboards/imported:/var/lib/grafana/dashboards/imported:ro
+    depends_on:
+      - prometheus
+    networks:
+      - homelab-monitor
+
+volumes:
+  prometheus-homelab-data:
+  grafana-homelab-data:
+
+networks:
+  homelab-monitor:
+    name: homelab-monitor
+    driver: bridge

apps/monitoring/prometheus.yml

@@ -1,4 +1,4 @@
-# Prometheus — scrape targets op Docker bridge (naast postgres-homelab, neo4j, …).
+# Prometheus — homelab metrics (NAS stack scrapet LAN + bridge targets).
 global:
   scrape_interval: 15s
   evaluation_interval: 15s
@@ -10,35 +10,29 @@ scrape_configs:
 
   - job_name: postgres-exporter
     static_configs:
-      - targets: ["postgres-exporter-homelab:9187"]
+      - targets: ["postgres-exporter:9187"]
         labels:
           instance: postgres-vm102
 
-  # Neo4j 4.4+ enterprise metrics.prometheus.enabled → endpoint op poort 2004
-  - job_name: neo4j
-    scrape_interval: 30s
-    metrics_path: /metrics
-    static_configs:
-      - targets: ["192.168.1.105:2004"]
-        labels:
-          instance: neo4j
+  # Neo4j Community 2026 heeft geen Prometheus :2004 — gebruik Neo4j dashboard via Postgres/Grafana SQL.
+  # Enterprise: zet server.metrics.prometheus.enabled=true en scrape :2004.
 
-  # Proxmox VE — prometheus-pve-exporter; vul monitoring/prometheus/targets/extra.yml
-  - job_name: proxmox-pve
+  - job_name: node-exporter
+    scrape_interval: 30s
+    static_configs:
+      - targets: ["192.168.1.105:9100"]
+        labels:
+          instance: vm102-postgress
+          role: security
+      - targets: ["192.168.1.211:9100"]
+        labels:
+          instance: synology-nas
+          role: nas
+
+  # Proxmox: vul targets in prometheus/targets/extra.yml (prometheus-pve-exporter :9221)
+  - job_name: proxmox
     scrape_interval: 30s
     file_sd_configs:
       - files:
           - /etc/prometheus/targets/extra.yml
         refresh_interval: 1m
-
-  # Synology / SNMP: zet targets in monitoring/prometheus/targets/snmp.yml en uncomment hieronder.
-  # - job_name: snmp
-  #   scrape_interval: 60s
-  #   metrics_path: /snmp
-  #   params:
-  #     module: [synology]
-  #   static_configs:
-  #     - targets:
-  #         - 192.168.1.211
-  #       labels:
-  #         job: snmp-nas