apiVersion: v1
kind: ServiceAccount
metadata:
  name: node-problem-detector
  namespace: kube-system
  labels:
    app.kubernetes.io/name: node-problem-detector
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: node-problem-detector
  labels:
    app.kubernetes.io/name: node-problem-detector
rules:
  - apiGroups: [""]
    resources: ["nodes"]
    verbs: ["get"]
  - apiGroups: [""]
    resources: ["nodes/status"]
    verbs: ["patch"]
  - apiGroups: [""]
    resources: ["events"]
    verbs: ["create", "patch", "update"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: node-problem-detector
  labels:
    app.kubernetes.io/name: node-problem-detector
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: node-problem-detector
subjects:
  - kind: ServiceAccount
    name: node-problem-detector
    namespace: kube-system
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: node-problem-detector-config
  namespace: kube-system
data:
  kernel-monitor.json: |
    {
      "plugin": "kmsg",
      "logPath": "/dev/kmsg",
      "lookback": "5m",
      "bufferSize": 10,
      "source": "kernel-monitor",
      "conditions": [
        {
          "type": "KernelDeadlock",
          "reason": "KernelHasNoDeadlock",
          "message": "kernel has no deadlock"
        },
        {
          "type": "ReadonlyFilesystem",
          "reason": "FilesystemIsNotReadOnly",
          "message": "Filesystem is not read-only"
        }
      ],
      "rules": [
        {
          "type": "temporary",
          "reason": "OOMKilling",
          "pattern": "Kill process \\d+ (.+) score \\d+ or sacrifice child\\nKilled process \\d+ (.+) total-vm:\\d+kB, anon-rss:\\d+kB, file-rss:\\d+kB.*"
        },
        {
          "type": "temporary",
          "reason": "TaskHung",
          "pattern": "task \\S+:\\w+ blocked for more than \\w+ seconds\\."
        },
        {
          "type": "temporary",
          "reason": "UnregisterNetDevice",
          "pattern": "unregister_netdevice: waiting for \\w+ to become free. Usage count = \\d+"
        },
        {
          "type": "temporary",
          "reason": "KernelOops",
          "pattern": "BUG: unable to handle kernel NULL pointer dereference at .*"
        },
        {
          "type": "temporary",
          "reason": "KernelOops",
          "pattern": "divide error: 0000 \\[#\\d+\\] SMP"
        },
        {
          "type": "temporary",
          "reason": "MemoryReadError",
          "pattern": "CE memory read error .*"
        },
        {
          "type": "permanent",
          "condition": "ReadonlyFilesystem",
          "reason": "FilesystemIsReadOnly",
          "pattern": "Remounting filesystem read-only"
        }
      ]
    }
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: node-problem-detector
  namespace: kube-system
  labels:
    app: node-problem-detector
spec:
  selector:
    matchLabels:
      app: node-problem-detector
  template:
    metadata:
      labels:
        app: node-problem-detector
    spec:
      serviceAccountName: node-problem-detector
      priorityClassName: system-node-critical
      containers:
        - name: node-problem-detector
          image: gcr.io/pingcap-public/kubernetes/node-problem-detector:v0.8.10-5-gb0fa610
          imagePullPolicy: Always
          command:
            - /node-problem-detector
            - --logtostderr
            - --config.system-log-monitor=/config/kernel-monitor.json
            - --prometheus-address=0.0.0.0
            - --prometheus-port=20257
          resources:
            requests:
              cpu: 10m
              memory: 80Mi
            limits:
              cpu: 10m
              memory: 80Mi
          securityContext:
            privileged: true
          env:
            - name: NODE_NAME
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
          volumeMounts:
            - name: kmsg
              mountPath: /dev/kmsg
              readOnly: true
            - name: localtime
              mountPath: /etc/localtime
              readOnly: true
            - name: config
              mountPath: /config
              readOnly: true
      volumes:
        - name: kmsg
          hostPath:
            path: /dev/kmsg
        - name: localtime
          hostPath:
            path: /etc/localtime
        - name: config
          configMap:
            name: node-problem-detector-config
      tolerations:
        - effect: NoSchedule
          operator: Exists
        - effect: NoExecute
          operator: Exists