DNS machine config

apiVersion: machineconfiguration.openshift.io/v1
kind: MachineConfig
metadata:
  name: 99-master-dnsmasq-configuration
spec:
  config:
    ignition:
      config: {}
      security:
        tls: {}
      timeouts: {}
      version: 2.2.0
    networkd: {}
    passwd: {}
    storage:
      files:
      - contents:
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          verification: {}
        filesystem: root
        mode: 420
        path: /etc/dnsmasq.d/single-node.conf
      - contents:
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          verification: {}
        filesystem: root
        mode: 365
        path: /etc/NetworkManager/dispatcher.d/forcedns
      - contents:
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          verification: {}
        filesystem: root
        mode: 420
        path: /etc/NetworkManager/conf.d/single-node.conf
    systemd:
      units:
      - contents: |
          [Unit]
          Description=Run dnsmasq to provide local dns for Single Node OpenShift
          Before=kubelet.service crio.service
          After=network.target
          [Service]
          ExecStart=/usr/sbin/dnsmasq -k
          [Install]
          WantedBy=multi-user.target
        enabled: true
        name: dnsmasq.service