Daemonset to reconcile nodes ethtool configuration

daemonset.yaml

# See for more options https://kubernetes.io/docs/concepts/workloads/controllers/daemonset/
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: node-ethtool
  namespace: kube-system
  labels:
    k8s-app: node-ethtool-config
spec:
  selector:
    matchLabels:
      name: node-ethtool
  template:
    metadata:
      labels:
        name: node-ethtool
    spec:
      dnsPolicy: ClusterFirst
      hostNetwork: true
      restartPolicy: Always
      # use tolerations to control where this daemonset should run are not
      tolerations:
      containers:
      - name: node-ethtool
        command: ["chroot", "/host", "sh", "-c"]
        args: ["while true; do ethtool --offload eth0 rx off tx off; ethtool -K eth0 gso off ; sleep 30; done;"]
        volumeMounts:
          - name: host
            mountPath: /host
        securityContext:
          capabilities:
            add:
            - NET_ADMIN
          privileged: true
        image: busybox:1.36
        resources:
          limits:
            memory: 10Mi
          requests:
            cpu: 1m
            memory: 1Mi
      # it may be desirable to set a high priority class to ensure that a DaemonSet Pod
      # preempts running Pods
      # priorityClassName: important
      # Don't do this, this is for testing, build a distroless image with the ethtool binary
      volumes:
        - name: host
          hostPath:
            path: /