hostreaddeploy.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: host-deploy
  labels:
    app: host-deploy
spec:
  replicas: 2
  minReadySeconds: 10
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxUnavailable: 1
      maxSurge: 1 
  selector:
    matchLabels:
      app: host-deploy
  template:
    metadata:
      labels:
        app: host-deploy
    spec:
      containers:
      - name: centos
        image: centos
        imagePullPolicy: Always
        command: [ "sh", "-c"]
        args:
        - while true; do
            tail /mnt/host/status.txt;
            echo "reading status";
            sleep 10000;
          done;
        ports:
        - containerPort: 2580
          name: http
        # livenessProbe:
        #   httpGet:
        #     path: /
        #     port: 2580
        # readinessProbe:
        #   httpGet:
        #     path: /
        #     port: 2580
        #   initialDelaySeconds: 10
        #   periodSeconds: 5
        resources:
          requests:
            memory: "1000Mi"
            cpu: "1000m"
        volumeMounts:
          - name: host-mount
            mountPath: /mnt/host
            readOnly: true
      volumes:
      - name: host-mount
        hostPath:
          path: /tmp
          type: Directory