type: string
                                  sni:
                                    description: SNI string to present to the server
                                      during TLS handshake.
                                    type: string
                                  subjectAltNames:
                                    description: A list of alternate names to verify

                                    type: string
                                  sni:
                                    description: SNI string to present to the server
                                      during TLS handshake.
                                    type: string
                                  subjectAltNames:
                                    description: A list of alternate names to verify

    },
    {
      "identity": "spiffe://cluster.local/ns/istio-system/sa/istiod",
      "state": "Unavailable: signing gRPC error (The service is currently unavailable): error trying to connect: TLS handshake failed: cert verification failed - unable to get local issuer certificate [CERTIFICATE_VERIFY_FAILED]",
      "certChain": []
    }
  ]

connections to this port should be secured using TLS. enum: - DISABLE - SIMPLE - MUTUAL - ISTIO_MUTUAL type: string privateKey: description: REQUIRED if mode is `MUTUAL`. type: string sni: description: SNI string to present to the server during TLS handshake. type: string subjectAltNames: description: A list of alternate names to verify the subject identity in the certificate. items: type: string type: array type: object type: object type: array proxyProtocol: description: The upstream PROXY protocol...

  // does not indicate otherwise, the first block is the issued certificate,
  // and subsequent blocks should be treated as intermediate certificates and presented in TLS handshakes.
  //
  // The certificate is encoded in PEM format.
  //
  // When serialized as JSON or YAML, the data is additionally base64-encoded, so it consists of:
  //
  //     base64(