},
            "transport_socket": {
              "name": "internal_upstream",
              "typed_config": {
                "@type": "type.googleapis.com/envoy.extensions.transport_sockets.internal_upstream.v3.InternalUpstreamTransport",
                "passthrough_metadata": [
                  {
                    "kind": {

     ...

                                  format: int32
                                  type: integer
                                idleTimeout:
                                  description: The idle timeout for upstream connection
                                    pool connections.
                                  type: string
                                maxConcurrentStreams:

meshConfig:
  defaultConfig:
    proxyMetadata:
      # Enable Istio agent to handle DNS requests for known hosts
      # Unknown hosts will automatically be resolved using upstream dns servers in resolv.conf

meshConfig:
  defaultConfig:
    proxyMetadata:
      # Enable Istio agent to handle DNS requests for known hosts
      # Unknown hosts will automatically be resolved using upstream dns servers in resolv.conf

                 ]
                },
                {
                 "upstream_protocol": "HTTP11",
                 "alpn_override": [
                  "istio-http/1.1",
                  "istio",
                  "http/1.1"
                 ]
                },
                {
                 "upstream_protocol": "HTTP2",
                 "alpn_override": [
                  "istio-h2",

meshConfig:
  defaultConfig:
    proxyMetadata:
      # Enable Istio agent to handle DNS requests for known hosts
      # Unknown hosts will automatically be resolved using upstream dns servers in resolv.conf

meshConfig:
  defaultConfig:
    proxyMetadata:
      # Enable Istio agent to handle DNS requests for known hosts
      # Unknown hosts will automatically be resolved using upstream dns servers in resolv.conf

the subject identity in the certificate. items: type: string type: array type: object type: object type: array proxyProtocol: description: The upstream PROXY protocol settings. properties: version: description: The PROXY protocol version to use. enum: - V1 - V2 type: string type: object tls: description: TLS related settings for connections to the upstream service. properties: caCertificates: description: 'OPTIONAL: The path to the file containing certificate authority certificates to use in verifying...

    echo "${original_coredns}"
    # Patch it
    fixed_coredns=$(
      printf '%s' "${original_coredns}" | sed \
        -e 's/^.*kubernetes cluster\.local/& internal/' \
        -e '/^.*upstream$/d' \
        -e '/^.*fallthrough.*$/d' \
        -e '/^.*forward . \/etc\/resolv.conf$/d' \
        -e '/^.*loop$/d' \
    )
    echo "Patched CoreDNS config:"
    echo "${fixed_coredns}"