Add monitoring replacement baseline

2026-05-17 11:22:38 +02:00
parent 0c308ff352
commit c95fa601f0
10 changed files with 490 additions and 5 deletions
@@ -0,0 +1,49 @@
+groups:
+  - name: homelab-availability
+    rules:
+      - alert: HomelabEndpointDown
+        expr: probe_success{job="blackbox-http"} == 0
+        for: 2m
+        labels:
+          severity: critical
+        annotations:
+          summary: "{{ $labels.instance }} is not reachable"
+          description: "Blackbox probe failed for {{ $labels.instance }}."
+
+      - alert: HomelabEndpointSlow
+        expr: probe_duration_seconds{job="blackbox-http"} > 5
+        for: 5m
+        labels:
+          severity: warning
+        annotations:
+          summary: "{{ $labels.instance }} is slow"
+          description: "Blackbox probe duration is above 5 seconds for {{ $labels.instance }}."
+
+  - name: homelab-host
+    rules:
+      - alert: HomelabDiskAlmostFull
+        expr: 100 * (1 - node_filesystem_avail_bytes{fstype!~"tmpfs|overlay"} / node_filesystem_size_bytes{fstype!~"tmpfs|overlay"}) > 85
+        for: 10m
+        labels:
+          severity: warning
+        annotations:
+          summary: "Disk usage high on {{ $labels.mountpoint }}"
+          description: "{{ $labels.mountpoint }} is above 85% used."
+
+      - alert: HomelabHighMemoryUsage
+        expr: 100 * (1 - node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes) > 90
+        for: 10m
+        labels:
+          severity: warning
+        annotations:
+          summary: "Memory usage high"
+          description: "Host memory usage is above 90%."
+
+      - alert: HomelabTraefik5xx
+        expr: sum(rate(traefik_service_requests_total{code=~"5.."}[5m])) by (service) > 0
+        for: 2m
+        labels:
+          severity: warning
+        annotations:
+          summary: "Traefik 5xx responses for {{ $labels.service }}"
+          description: "Traefik reports 5xx responses for {{ $labels.service }}."