monitoring: add node exporter

system-apps/monitoring/node-exporter/nodeExporter-clusterRole.yaml

@@ -0,0 +1,22 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  labels:
+    app.kubernetes.io/component: exporter
+    app.kubernetes.io/name: node-exporter
+    app.kubernetes.io/part-of: kube-prometheus
+    app.kubernetes.io/version: 1.9.1
+  name: node-exporter
+rules:
+- apiGroups:
+  - authentication.k8s.io
+  resources:
+  - tokenreviews
+  verbs:
+  - create
+- apiGroups:
+  - authorization.k8s.io
+  resources:
+  - subjectaccessreviews
+  verbs:
+  - create

system-apps/monitoring/node-exporter/nodeExporter-clusterRoleBinding.yaml

@@ -0,0 +1,17 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  labels:
+    app.kubernetes.io/component: exporter
+    app.kubernetes.io/name: node-exporter
+    app.kubernetes.io/part-of: kube-prometheus
+    app.kubernetes.io/version: 1.9.1
+  name: node-exporter
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: node-exporter
+subjects:
+- kind: ServiceAccount
+  name: node-exporter
+  namespace: monitoring

system-apps/monitoring/node-exporter/nodeExporter-daemonset.yaml

@@ -0,0 +1,121 @@
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  labels:
+    app.kubernetes.io/component: exporter
+    app.kubernetes.io/name: node-exporter
+    app.kubernetes.io/part-of: kube-prometheus
+    app.kubernetes.io/version: 1.9.1
+  name: node-exporter
+  namespace: monitoring
+spec:
+  selector:
+    matchLabels:
+      app.kubernetes.io/component: exporter
+      app.kubernetes.io/name: node-exporter
+      app.kubernetes.io/part-of: kube-prometheus
+  template:
+    metadata:
+      annotations:
+        kubectl.kubernetes.io/default-container: node-exporter
+      labels:
+        app.kubernetes.io/component: exporter
+        app.kubernetes.io/name: node-exporter
+        app.kubernetes.io/part-of: kube-prometheus
+        app.kubernetes.io/version: 1.9.1
+    spec:
+      automountServiceAccountToken: true
+      containers:
+      - args:
+        - --web.listen-address=127.0.0.1:9100
+        - --path.sysfs=/host/sys
+        - --path.rootfs=/host/root
+        - --path.udev.data=/host/root/run/udev/data
+        - --no-collector.wifi
+        - --no-collector.hwmon
+        - --no-collector.btrfs
+        - --collector.filesystem.mount-points-exclude=^/(dev|proc|sys|run/k3s/containerd/.+|var/lib/docker/.+|var/lib/kubelet/pods/.+)($|/)
+        - --collector.netclass.ignored-devices=^(veth.*|[a-f0-9]{15})$
+        - --collector.netdev.device-exclude=^(veth.*|[a-f0-9]{15})$
+        image: quay.io/prometheus/node-exporter:v1.9.1
+        name: node-exporter
+        resources:
+          limits:
+            cpu: 250m
+            memory: 180Mi
+          requests:
+            cpu: 102m
+            memory: 180Mi
+        securityContext:
+          allowPrivilegeEscalation: false
+          capabilities:
+            add:
+            - SYS_TIME
+            drop:
+            - ALL
+          readOnlyRootFilesystem: true
+        volumeMounts:
+        - mountPath: /host/sys
+          mountPropagation: HostToContainer
+          name: sys
+          readOnly: true
+        - mountPath: /host/root
+          mountPropagation: HostToContainer
+          name: root
+          readOnly: true
+      - args:
+        - --secure-listen-address=[$(IP)]:9100
+        - --tls-cipher-suites=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305
+        - --upstream=http://127.0.0.1:9100/
+        env:
+        - name: IP
+          valueFrom:
+            fieldRef:
+              fieldPath: status.podIP
+        image: quay.io/brancz/kube-rbac-proxy:v0.19.1
+        name: kube-rbac-proxy
+        ports:
+        - containerPort: 9100
+          hostPort: 9100
+          name: https
+        resources:
+          limits:
+            cpu: 20m
+            memory: 40Mi
+          requests:
+            cpu: 10m
+            memory: 20Mi
+        securityContext:
+          allowPrivilegeEscalation: false
+          capabilities:
+            drop:
+            - ALL
+          readOnlyRootFilesystem: true
+          runAsGroup: 65532
+          runAsNonRoot: true
+          runAsUser: 65532
+          seccompProfile:
+            type: RuntimeDefault
+      hostNetwork: true
+      hostPID: true
+      nodeSelector:
+        kubernetes.io/os: linux
+      priorityClassName: system-cluster-critical
+      securityContext:
+        runAsGroup: 65534
+        runAsNonRoot: true
+        runAsUser: 65534
+      serviceAccountName: node-exporter
+      tolerations:
+      - operator: Exists
+      volumes:
+      - hostPath:
+          path: /sys
+        name: sys
+      - hostPath:
+          path: /
+        name: root
+  updateStrategy:
+    rollingUpdate:
+      maxUnavailable: 10%
+    type: RollingUpdate

system-apps/monitoring/node-exporter/nodeExporter-networkPolicy.yaml

@@ -0,0 +1,29 @@
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  labels:
+    app.kubernetes.io/component: exporter
+    app.kubernetes.io/name: node-exporter
+    app.kubernetes.io/part-of: kube-prometheus
+    app.kubernetes.io/version: 1.9.1
+  name: node-exporter
+  namespace: monitoring
+spec:
+  egress:
+  - {}
+  ingress:
+  - from:
+    - podSelector:
+        matchLabels:
+          app.kubernetes.io/name: prometheus
+    ports:
+    - port: 9100
+      protocol: TCP
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/component: exporter
+      app.kubernetes.io/name: node-exporter
+      app.kubernetes.io/part-of: kube-prometheus
+  policyTypes:
+  - Egress
+  - Ingress

system-apps/monitoring/node-exporter/nodeExporter-service.yaml

@@ -0,0 +1,20 @@
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app.kubernetes.io/component: exporter
+    app.kubernetes.io/name: node-exporter
+    app.kubernetes.io/part-of: kube-prometheus
+    app.kubernetes.io/version: 1.9.1
+  name: node-exporter
+  namespace: monitoring
+spec:
+  clusterIP: None
+  ports:
+  - name: https
+    port: 9100
+    targetPort: https
+  selector:
+    app.kubernetes.io/component: exporter
+    app.kubernetes.io/name: node-exporter
+    app.kubernetes.io/part-of: kube-prometheus

system-apps/monitoring/node-exporter/nodeExporter-serviceAccount.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+automountServiceAccountToken: false
+kind: ServiceAccount
+metadata:
+  labels:
+    app.kubernetes.io/component: exporter
+    app.kubernetes.io/name: node-exporter
+    app.kubernetes.io/part-of: kube-prometheus
+    app.kubernetes.io/version: 1.9.1
+  name: node-exporter
+  namespace: monitoring