这个是我的json文件内容

{ 
  "kind": "KubeletConfiguration",
  "apiVersion": "kubelet.config.k8s.io/v1beta1",
  "authentication": {
    "x509": {
      "clientCAFile": "/opt/kubelet/certs/ca.pem"
    },
    "webhook": { 
      "enabled": true,
      "cacheTTL": "2m0s"
    },
    "anonymous": {
      "enabled": false
    }
  },
  "authorization": {
    "mode": "Webhook",
    "webhook": {
      "cacheAuthorizedTTL": "5m0s",
      "cacheUnauthorizedTTL": "30s"
    }
  },
  "tlsCertFile": "/opt/kubelet/certs/kubelet.pem",
  "tlsPrivateKeyFile": "/opt/kubelet/certs/kubelet-key.pem",
  "address": "172.16.128.60",
  "port": 10250,
  "readOnlyPort": 0,
  "cgroupDriver": "systemd",
  "hairpinMode": "promiscuous-bridge",
  "serializeImagePulls": false,
  "rotateCertificates": true,
  "featureGates": {
    "RotateKubeletClientCertificate": true,
    "RotateKubeletServerCertificate": true
  },
  "maxPods": 512,
  "failSwapOn": false,
  "containerLogMaxSize": "10Mi",
  "containerLogMaxFiles": 5,
  "clusterDomain": "cluster.local.",
  "clusterDNS": ["10.254.0.2"]
}