func (c *CoreDNS) String() string {
	return "etcdDNS"
}

// CoreDNS - represents dns config for coredns server.
type CoreDNS struct {
	domainNames []string
	domainIPs   set.StringSet
	domainPort  string
	prefixPath  string
	etcdClient  *clientv3.Client
}

// EtcdOption - functional options pattern style
type EtcdOption func(*CoreDNS)

  if [ "${IP_FAMILY}" = "ipv6" ] || [ "${IP_FAMILY}" = "dual" ]; then
    # Get the current config
    original_coredns=$(kubectl get -oyaml -n=kube-system configmap/coredns)
    echo "Original CoreDNS config:"
    echo "${original_coredns}"
    # Patch it
    fixed_coredns=$(
      printf '%s' "${original_coredns}" | sed \
        -e 's/^.*kubernetes cluster\.local/& internal/' \
        -e '/^.*upstream$/d' \

istio-system       ztunnel-xljhg                                        10.244.1.44 ambient-worker        None                                TCP
kube-system        coredns-5dd5756b68-mgjn9                             10.244.0.2  ambient-control-plane None                                TCP
kube-system        coredns-5dd5756b68-nzlpw                             10.244.0.3  ambient-control-plane None                                TCP

      ],
      "protocol": "TCP",
      "uid": "Kubernetes//Pod/kube-system/coredns-5dd5756b68-mgjn9",
      "name": "coredns-5dd5756b68-mgjn9",
      "namespace": "kube-system",
      "trustDomain": "cluster.local",
      "serviceAccount": "coredns",
      "workloadName": "coredns",
      "workloadType": "deployment",
      "canonicalName": "coredns",
      "canonicalRevision": "latest",
      "node": "ambient-control-plane",

          istio:
            workload: coredns;kube-system;;;Kubernetes
    - endpoint:
        address:
          socketAddress:
            address: 10.244.0.3
            portValue: 53
        healthCheckConfig: {}
      healthStatus: HEALTHY
      loadBalancingWeight: 1
      metadata:
        filterMetadata:
          istio:
            workload: coredns;kube-system;;;Kubernetes
    loadBalancingWeight: 2

// etcd environment values
const (
	Endpoints     = "endpoints"
	PathPrefix    = "path_prefix"
	CoreDNSPath   = "coredns_path"
	ClientCert    = "client_cert"
	ClientCertKey = "client_cert_key"

	EnvEtcdEndpoints     = "MINIO_ETCD_ENDPOINTS"
	EnvEtcdPathPrefix    = "MINIO_ETCD_PATH_PREFIX"
	EnvEtcdCoreDNSPath   = "MINIO_ETCD_COREDNS_PATH"
	EnvEtcdClientCert    = "MINIO_ETCD_CLIENT_CERT"
	EnvEtcdClientCertKey = "MINIO_ETCD_CLIENT_CERT_KEY"
)

ARGS:
endpoints*       (csv)       comma separated list of etcd endpoints e.g. "http://localhost:2379"
path_prefix      (path)      namespace prefix to isolate tenants e.g. "customer1/"
coredns_path     (path)      shared bucket DNS records, default is "/skydns"
client_cert      (path)      client cert for mTLS authentication
client_cert_key  (path)      client cert key for mTLS authentication

                        "metadata": {
                            "filterMetadata": {
                                "istio": {
                                    "workload": "coredns;kube-system;;;Kubernetes"
                                }
                            }
                        },
                        "loadBalancingWeight": 1
                    },
                    {

= vendor/github.com/coredns/caddy licensed under: =

                                 Apache License
                           Version 2.0, January 2004
                        http://www.apache.org/licenses/

   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

   1. Definitions.

      "License" shall mean the terms and conditions for use, reproduction,
      and distribution as defined by Sections 1 through 9 of this document.

                                            "filter_metadata": {
                                                "istio": {
                                                    "workload": "coredns;kube-system;;;Kubernetes"
                                                }
                                            }
                                        },