From 228807fcc8b1942bb0dc37ce06dd4b56a2917a37 Mon Sep 17 00:00:00 2001
From: Thore Cimbal <cfx@riot.8shield.net>
Date: Sat, 1 Aug 2026 12:00:00 +0000
Subject: [PATCH] monitoring: doppelten node-exporter entfernt (gitops#45)

Das prometheus-node-exporter-HelmRelease (hostNetwork) kollidierte auf
dem Host mit dem etablierten systemd-Exporter auf Port 9100 und konnte
seit Anlage nie binden (4883 Restarts, CrashLoopBackOff). Host-Metriken
kommen weiterhin vom systemd-Dienst, den CFGMON direkt via 10.0.0.2:9100
scrapt - das DaemonSet haette sie nur dupliziert. Alloy-Scrape auf den
verwaisten Service ebenfalls entfernt.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PKhFj1S3UdD6xL2fbWPeYj
---
 apps/monitoring/alloy-config.yaml  | 13 ++++---------
 apps/monitoring/kustomization.yaml |  1 -
 apps/monitoring/node-exporter.yaml | 29 -----------------------------
 3 files changed, 4 insertions(+), 39 deletions(-)
 delete mode 100644 apps/monitoring/node-exporter.yaml

diff --git a/apps/monitoring/alloy-config.yaml b/apps/monitoring/alloy-config.yaml
index 7c33e9b..5449488 100644
--- a/apps/monitoring/alloy-config.yaml
+++ b/apps/monitoring/alloy-config.yaml
@@ -89,15 +89,10 @@ data:
       job_name = "flux"
     }
 
-    // Scrape node-exporter DaemonSet
-    prometheus.scrape "node_exporter" {
-      targets = [{
-        __address__ = "prometheus-node-exporter.monitoring.svc.cluster.local:9100",
-      }]
-      forward_to = [prometheus.remote_write.selendis.receiver]
-      scrape_interval = "30s"
-      scrape_timeout = "10s"
-    }
+    // Kein node-exporter-Scrape mehr: Host-Metriken liefert der systemd-Exporter
+    // auf dem Host, den CFGMON direkt via 10.0.0.2:9100 scrapt. Das fruehere
+    // DaemonSet konnte wegen Portkonflikt mit ebendiesem Dienst nie starten
+    // (4883 Restarts) und haette dieselben Metriken doppelt geliefert (gitops#45).
 
     // Scrape Synapse metrics
     prometheus.scrape "synapse" {
diff --git a/apps/monitoring/kustomization.yaml b/apps/monitoring/kustomization.yaml
index eb57c15..784532a 100644
--- a/apps/monitoring/kustomization.yaml
+++ b/apps/monitoring/kustomization.yaml
@@ -4,6 +4,5 @@ resources:
   - namespace.yaml
   - helm-repos.yaml
   - kube-state-metrics.yaml
-  - node-exporter.yaml
   - alloy-config.yaml
   - alloy.yaml
diff --git a/apps/monitoring/node-exporter.yaml b/apps/monitoring/node-exporter.yaml
deleted file mode 100644
index e5df563..0000000
--- a/apps/monitoring/node-exporter.yaml
+++ /dev/null
@@ -1,29 +0,0 @@
-apiVersion: helm.toolkit.fluxcd.io/v2
-kind: HelmRelease
-metadata:
-  name: prometheus-node-exporter
-  namespace: monitoring
-spec:
-  interval: 1h
-  chart:
-    spec:
-      chart: prometheus-node-exporter
-      version: "4.x"
-      sourceRef:
-        kind: HelmRepository
-        name: prometheus-community
-        namespace: flux-system
-  values:
-    hostNetwork: true
-    hostPID: true
-    hostRootFsMount:
-      enabled: true
-    service:
-      port: 9100
-      targetPort: 9100
-    prometheus:
-      monitor:
-        enabled: false
-    tolerations:
-      - effect: NoSchedule
-        operator: Exists