apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx
  labels:
    app: nginx
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx
        imagePullPolicy: Never
        livenessProbe:
          exec:
            command:
            - /bin/sh
            - -c
            - 'pgrep telegraf && pgrep sshd && pgrep nginx'