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kubelet に TLS 暗号スイートを適用できない

Solution In Progress - Updated -

Issue

  • 以下の KubeletConfig を使用して Kubelet に TLS 暗号スイート を適用すると、machine-config がロールアウトされますが、変更は /etc/kubernetes/kubelet.conf ファイルには反映されません。
apiVersion: machineconfiguration.openshift.io/v1
kind: KubeletConfig
metadata:
  name: <name-of-kubelet-config>
spec:
  tlsSecurityProfile:
    type: Custom 
    custom: 
      ciphers: 
      - TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
      - TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
      minTLSVersion: VersionTLS12
  machineConfigPoolSelector:
    matchLabels:
      pools.operator.machineconfiguration.openshift.io/worker: "" 

Environment

  • Red Hat OpenShift Container Platform
    • 4.10.x

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