feat: add Traefik ServiceMonitor configuration and update deploy-monitoring.sh to apply it

Author: KevinDeBenedetti

kubernetes/monitoring/traefik-servicemonitor.yaml

@@ -0,0 +1,25 @@
+# =============================================================================
+# Traefik ServiceMonitor
+# Applied by deploy-monitoring.sh after kube-prometheus-stack CRDs exist.
+# Managed independently of the Traefik Helm release to avoid schema conflicts.
+# =============================================================================
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: traefik
+  namespace: ingress
+  labels:
+    app.kubernetes.io/name: traefik
+    app.kubernetes.io/instance: traefik-ingress
+spec:
+  namespaceSelector:
+    matchNames:
+      - ingress
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: traefik
+      app.kubernetes.io/instance: traefik-ingress
+  endpoints:
+    - port: metrics
+      interval: 30s
+      path: /metrics

scripts/deploy-monitoring.sh

@@ -82,15 +82,7 @@ kubectl rollout status statefulset/prometheus-kube-prometheus-stack-prometheus -
 
 # Enable Traefik ServiceMonitor now that kube-prometheus-stack CRDs exist
 log_step "Enabling Traefik ServiceMonitor..."
-helm upgrade traefik traefik/traefik \
-  --namespace ingress \
-  --reuse-values \
-  --set "metrics.prometheus.serviceMonitor.enabled=true" \
-  --set "metrics.prometheus.serviceMonitor.namespace=ingress" \
-  --set "metrics.prometheus.serviceMonitor.jobLabel=traefik" \
-  --set "metrics.prometheus.serviceMonitor.interval=30s" \
-  --wait \
-  --timeout 60s
+kubectl apply -f "$(_k8s monitoring/traefik-servicemonitor.yaml)"
 
 # --- 3. Loki ---
 log_step "[3/5] Loki ${LOKI_VERSION}..."