7.8.

    apiVersion: v1
    kind: ConfigMap
    metadata:
      name: tuned-1
      namespace: clusters
    data:
      tuning: |
        apiVersion: tuned.openshift.io/v1
        kind: Tuned
        metadata:
          name: tuned-1
          namespace: openshift-cluster-node-tuning-operator
        spec:
          profile:
          - data: |
              [main]
              summary=Custom OpenShift profile
              include=openshift-node
              [sysctl]
              vm.dirty_ratio="55"
            name: tuned-1-profile
          recommend:
          - priority: 20
            profile: tuned-1-profile

    apiVersion: v1
    kind: ConfigMap
    metadata:
      name: tuned-1
      namespace: clusters
    data:
      tuning: |
        apiVersion: tuned.openshift.io/v1
        kind: Tuned
        metadata:
          name: tuned-1
          namespace: openshift-cluster-node-tuning-operator
        spec:
          profile:
          - data: |
              [main]
              summary=Custom OpenShift profile
              include=openshift-node
              [sysctl]
              vm.dirty_ratio="55"
            name: tuned-1-profile
          recommend:
          - priority: 20
            profile: tuned-1-profile

oc --kubeconfig="$MGMT_KUBECONFIG" create -f tuned-1.yaml

$ oc --kubeconfig="$MGMT_KUBECONFIG" create -f tuned-1.yaml

    apiVersion: hypershift.openshift.io/v1alpha1
    kind: NodePool
    metadata:
      ...
      name: nodepool-1
      namespace: clusters
    ...
    spec:
      ...
      tuningConfig:
      - name: tuned-1
    status:
    ...

    apiVersion: hypershift.openshift.io/v1alpha1
    kind: NodePool
    metadata:
      ...
      name: nodepool-1
      namespace: clusters
    ...
    spec:
      ...
      tuningConfig:
      - name: tuned-1
    status:
    ...

oc --kubeconfig="$HC_KUBECONFIG" get tuned.tuned.openshift.io -n openshift-cluster-node-tuning-operator

$ oc --kubeconfig="$HC_KUBECONFIG" get tuned.tuned.openshift.io -n openshift-cluster-node-tuning-operator

oc --kubeconfig="$HC_KUBECONFIG" get profile.tuned.openshift.io -n openshift-cluster-node-tuning-operator

$ oc --kubeconfig="$HC_KUBECONFIG" get profile.tuned.openshift.io -n openshift-cluster-node-tuning-operator

oc --kubeconfig="$HC_KUBECONFIG" debug node/nodepool-1-worker-1 -- chroot /host sysctl vm.dirty_ratio

$ oc --kubeconfig="$HC_KUBECONFIG" debug node/nodepool-1-worker-1 -- chroot /host sysctl vm.dirty_ratio