Add the monitoring stack

kubernetes/node-exporter/daemonset.yaml

@@ -0,0 +1,115 @@
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: node-exporter
+  namespace: monitoring
+---
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: node-exporter
+  namespace: monitoring
+  labels:
+    app: node-exporter
+spec:
+  selector:
+    matchLabels:
+      app: node-exporter
+  template:
+    metadata:
+      labels:
+        app: node-exporter
+      annotations:
+        prometheus.io/scrape: "true"
+        prometheus.io/port: "9100"
+    spec:
+      serviceAccountName: node-exporter
+      hostNetwork: true
+      hostPID: true
+      tolerations:
+        - key: node-role.kubernetes.io/master
+          operator: Exists
+          effect: NoSchedule
+        - key: node-role.kubernetes.io/control-plane
+          operator: Exists
+          effect: NoSchedule
+      containers:
+        - name: node-exporter
+          image: prom/node-exporter:v1.7.0
+          args:
+            - "--path.procfs=/host/proc"
+            - "--path.sysfs=/host/sys"
+            - "--path.rootfs=/host/root"
+            - "--web.listen-address=:9100"
+            - "--collector.filesystem.mount-points-exclude=^/(dev|proc|sys|var/lib/docker/.+|var/lib/kubelet/.+)($|/)"
+            - "--collector.netclass.ignored-devices=^(veth.*|cali.*|docker.*|flannel.*)$"
+          ports:
+            - name: metrics
+              containerPort: 9100
+              hostPort: 9100
+              protocol: TCP
+          resources:
+            requests:
+              memory: "20Mi"
+              cpu: "10m"
+            limits:
+              memory: "50Mi"
+              cpu: "100m"
+          securityContext:
+            runAsNonRoot: true
+            runAsUser: 65534
+          volumeMounts:
+            - name: proc
+              mountPath: /host/proc
+              readOnly: true
+            - name: sys
+              mountPath: /host/sys
+              readOnly: true
+            - name: root
+              mountPath: /host/root
+              readOnly: true
+              mountPropagation: HostToContainer
+          livenessProbe:
+            httpGet:
+              path: /
+              port: metrics
+            initialDelaySeconds: 5
+            periodSeconds: 15
+          readinessProbe:
+            httpGet:
+              path: /
+              port: metrics
+            initialDelaySeconds: 5
+            periodSeconds: 15
+      volumes:
+        - name: proc
+          hostPath:
+            path: /proc
+        - name: sys
+          hostPath:
+            path: /sys
+        - name: root
+          hostPath:
+            path: /
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: node-exporter
+  namespace: monitoring
+  labels:
+    app: node-exporter
+  annotations:
+    prometheus.io/scrape: "true"
+    prometheus.io/port: "9100"
+spec:
+  type: ClusterIP
+  clusterIP: None
+  ports:
+    - name: metrics
+      port: 9100
+      targetPort: 9100
+      protocol: TCP
+  selector:
+    app: node-exporter