From 2ec8fb390f07b22a256a9c72de3c0b0aace718a0 Mon Sep 17 00:00:00 2001
From: Tanguy Herbron <tanguy.herbron@outlook.com>
Date: Thu, 5 Dec 2024 22:26:53 +0100
Subject: [PATCH] feat(metrics): Add node and kube metrics

---
 manifests/kube-state-metrics/kustomization.yaml  |  7 +++++++
 manifests/kube-state-metrics/servicemonitor.yaml | 13 +++++++++++++
 manifests/kustomization.yaml                     |  1 +
 manifests/node-exporter/daemonset.yaml           |  3 +--
 manifests/node-exporter/servicemonitor.yaml      |  3 +++
 5 files changed, 25 insertions(+), 2 deletions(-)
 create mode 100644 manifests/kube-state-metrics/kustomization.yaml
 create mode 100644 manifests/kube-state-metrics/servicemonitor.yaml

diff --git a/manifests/kube-state-metrics/kustomization.yaml b/manifests/kube-state-metrics/kustomization.yaml
new file mode 100644
index 0000000..b30f242
--- /dev/null
+++ b/manifests/kube-state-metrics/kustomization.yaml
@@ -0,0 +1,7 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namespace: monitoring
+
+resources:
+  - git@github.com:kubernetes/kube-state-metrics/examples/standard?ref=v2.14.0
+  - servicemonitor.yaml
diff --git a/manifests/kube-state-metrics/servicemonitor.yaml b/manifests/kube-state-metrics/servicemonitor.yaml
new file mode 100644
index 0000000..1fb7400
--- /dev/null
+++ b/manifests/kube-state-metrics/servicemonitor.yaml
@@ -0,0 +1,13 @@
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: kube-state-metrics
+  namespace: monitoring
+spec:
+  selector:
+    matchLabels:
+      app.kubernetes.io/component: exporter
+      app.kubernetes.io/name: kube-state-metrics
+  endpoints:
+    - port: http-metrics
+      path: /metrics
diff --git a/manifests/kustomization.yaml b/manifests/kustomization.yaml
index 8afc7ec..688c2c3 100644
--- a/manifests/kustomization.yaml
+++ b/manifests/kustomization.yaml
@@ -10,3 +10,4 @@ resources:
   - prometheus
   - grafana
   - node-exporter
+  - kube-state-metrics
diff --git a/manifests/node-exporter/daemonset.yaml b/manifests/node-exporter/daemonset.yaml
index 14c1d0c..6e1e2a7 100644
--- a/manifests/node-exporter/daemonset.yaml
+++ b/manifests/node-exporter/daemonset.yaml
@@ -22,8 +22,7 @@ spec:
         - --path.sysfs=/host/sys
         - --path.rootfs=/host/root
         - --no-collector.wifi
-        - --no-collector.hwmon
-        - --collector.filesystem.ignored-mount-points=^/(dev|proc|sys|var/lib/docker/.+|var/lib/kubelet/pods/.+)($|/)
+        - --collector.filesystem.ignored-mount-points=^/(dev|proc|var/lib/docker/.+|var/lib/kubelet/pods/.+)($|/)
         - --collector.netclass.ignored-devices=^(veth.*)$
         name: node-exporter
         image: prom/node-exporter
diff --git a/manifests/node-exporter/servicemonitor.yaml b/manifests/node-exporter/servicemonitor.yaml
index 4818379..7957945 100644
--- a/manifests/node-exporter/servicemonitor.yaml
+++ b/manifests/node-exporter/servicemonitor.yaml
@@ -11,3 +11,6 @@ spec:
   endpoints:
     - port: node-exporter
       path: /metrics
+      relabelings:
+      - sourceLabels: [__meta_kubernetes_pod_node_name]
+        targetLabel: instance