echo wget is not installed.

  echo Error: curl is not installed or does not support https, wget is not installed. \
       Cannot download envoy. Please install wget or add support of https to curl.
  exit 1
}

# Params:
#   $1: The URL of the ztunnel binary to be downloaded.
#   $2: The full path of the output binary.
#   $3: Non-versioned name to use
function download_ztunnel_if_necessary () {
  if [[ -f "$2" ]]; then
    return

       Cannot download envoy. Please install wget or add support of https to curl.
  exit 1
}

# Downloads and extract an Envoy binary if the artifact doesn't already exist.
# Params:
#   $1: The URL of the Envoy tar.gz to be downloaded.
#   $2: The full path of the output binary.
#   $3: Non-versioned name to use
function download_envoy_if_necessary () {
  if [[ ! -f "$2" ]] ; then

        - it connects to K8S using the kubeconfig and JWT token copied from install-cni to get Pod and Namespace. Since this is a short-running command, each invocation creates a new connection.
        - If so, calls `istio-iptables` with params to setup pod netns
        - If ambient, sets up the ambient logic.

- `istio-iptables`
    - sets up iptables to redirect a list of ports to the port envoy will listen
    - shared code with istio-init container

message DaemonSetUpdateStrategy {
  // Type of daemon set update. Can be "RollingUpdate" or "OnDelete". Default is RollingUpdate.
  // +optional
  optional string type = 1;

  // Rolling update config params. Present only if type = "RollingUpdate".
  // ---
  // TODO: Update this to follow our convention for oneOf, whatever we decide it
  // to be. Same as Deployment `strategy.rollingUpdate`.

                    "typed_config": {
                      "@type": "type.googleapis.com/envoy.extensions.transport_sockets.tls.v3.DownstreamTlsContext",
                      "common_tls_context": {
                        "tls_params": {
                          "tls_minimum_protocol_version": "TLSv1_3",
                          "tls_maximum_protocol_version": "TLSv1_3"
                        },
                        "alpn_protocols": [

#################   COMMON SECTION   ###############################
####################################################################

# DEFAULT_KIND_IMAGE is used to set the Kubernetes version for KinD unless overridden in params to setup_kind_cluster(s)
DEFAULT_KIND_IMAGE="gcr.io/istio-testing/kind-node:v1.28.4"

# COMMON_SCRIPTS contains the directory this file is in.
COMMON_SCRIPTS=$(dirname "${BASH_SOURCE:-$0}")

function log() {

          "typed_config": {
           "@type": "type.googleapis.com/envoy.extensions.transport_sockets.tls.v3.DownstreamTlsContext",
           "common_tls_context": {
            "tls_params": {
             "tls_minimum_protocol_version": "TLSv1_2",
             "tls_maximum_protocol_version": "TLSv1_3",
             "cipher_suites": [
              "ECDHE-ECDSA-AES256-GCM-SHA384",

                  "typed_config": {
                    "@type": "type.googleapis.com/envoy.extensions.transport_sockets.tls.v3.UpstreamTlsContext",
                    "common_tls_context": {
                      "tls_params": {
                        "tls_minimum_protocol_version": "TLSv1_2",
                        "tls_maximum_protocol_version": "TLSv1_3"
                      },
                      "alpn_protocols": [

		return nil
	}

	log.Debugf("Setting up redirect")

	redirect, err := NewRedirect(pi)
	if err != nil {
		log.Errorf("redirect failed due to bad params: %v", err)
		return err
	}

	if err := rulesMgr.Program(podName, args.Netns, redirect); err != nil {
		return err
	}

	return nil
}

func setupLogging(conf *Config) {

"This is not json"