Kubernetes THP tuner daemonset

kernel-tuner.yaml

kind: DaemonSet
apiVersion: apps/v1
metadata:
  namespace: kube-system
  name: kernel-tuner
  labels:
    app: kernel-tuner
spec:
  selector:
    matchLabels:
      app: kernel-tuner
  template:
    metadata:
      labels:
        app: kernel-tuner
    spec:
      hostPID: true
      containers:
      - name: kernel-tuner
        image: gcr.io/google-containers/startup-script:v1
        securityContext:
          privileged: true
        env:
        - name: STARTUP_SCRIPT
          value: |
            #! /bin/bash
            set -o errexit
            set -o pipefail
            set -o nounset
            echo never > /sys/kernel/mm/transparent_hugepage/enabled
            echo never > /sys/kernel/mm/transparent_hugepage/defrag