# Gets the download command supported by the system (currently either curl or wget)
DOWNLOAD_COMMAND=""
function set_download_command () {
  # Try curl.
  if command -v curl > /dev/null; then
    if curl --version | grep Protocols  | grep https > /dev/null; then
      DOWNLOAD_COMMAND="curl -fLSs --retry 5 --retry-delay 1 --retry-connrefused"
      return
    fi
    echo curl does not support https, will try wget for downloading files.
  else

# Gets the download command supported by the system (currently either curl or wget)
DOWNLOAD_COMMAND=""
function set_download_command () {
  # Try curl.
  if command -v curl > /dev/null; then
    if curl --version | grep Protocols  | grep https > /dev/null; then
      DOWNLOAD_COMMAND="curl -fLSs --retry 5 --retry-delay 1 --retry-connrefused"
      return
    fi
    echo curl does not support https, will try wget for downloading files.
  else

**Please provide a description of this PR:**



**To help us figure out who should review this PR, please put an X in all the areas that this PR affects.**

- [ ] Ambient
- [ ] Configuration Infrastructure
- [ ] Docs
- [ ] Dual Stack
- [ ] Installation
- [ ] Networking
- [ ] Performance and Scalability
- [ ] Policies and Telemetry
- [ ] Security
- [ ] Test and Release
- [ ] User Experience
- [ ] Developer Infrastructure

# sudo apt-get update && apt-get whichever

# hadolint ignore=DL3005,DL3008
RUN apt-get update && \
  apt-get install --no-install-recommends -y \
  ca-certificates \
  curl \
  iptables \
  iproute2 \
  iputils-ping \
  knot-dnsutils \
  netcat-openbsd \
  tcpdump \
  conntrack \
  bsdmainutils \
  net-tools \
  lsof \
  sudo \
  && update-ca-certificates \

  #interceptionMode: REDIRECT
  #
  # Port where Envoy listens (on local host) for admin commands
  # You can exec into the istio-proxy container in a pod and
  # curl the admin port (curl http://localhost:15000/) to obtain
  # diagnostic information from Envoy. See
  # https://lyft.github.io/envoy/docs/operations/admin.html
  # for more details
  proxyAdminPort: 15000
  #

**Describe the feature request**

**Describe alternatives you've considered**

**Affected product area (please put an X in all that apply)**

[ ] Ambient
[ ] Docs
[ ] Dual Stack
[ ] Installation
[ ] Networking
[ ] Performance and Scalability
[ ] Extensions and Telemetry
[ ] Security
[ ] Test and Release
[ ] User Experience
[ ] Developer Infrastructure

    # treatment will be considered.
    platform: ""

    # Setup how istiod Service is configured. See https://kubernetes.io/docs/concepts/services-networking/dual-stack/#services
    # This is intended only for use with external istiod.
    ipFamilyPolicy: ""
    ipFamilies: []

  base:
    # Used for helm2 to add the CRDs to templates.
    enableCRDTemplates: false

    echo "You can also try applying the patch file from the build artifacts:

git apply <(curl -sL \"${patchFile}\")
"
}

if [[ -n $(git status --porcelain) ]]; then
  git status
  git diff
  echo "ERROR: Some files need to be updated, please run 'make gen' and include any changed files in your PR"

  # not an official release or release candidate, so get the commit sha
  SHORT_SHA=$(echo "${GATEWAY_VERSION}" | awk -F '-' '{ print $NF }')
  GATEWAY_VERSION=$(curl -s -L -H "Accept: application/vnd.github+json" -H "X-GitHub-Api-Version: 2022-11-28" "https://api.github.com/repos/kubernetes-sigs/gateway-api/commits/${SHORT_SHA}" | jq -r .sha)
fi
if [ -z "${GATEWAY_VERSION}" ]; then

SLEEP_TIME=60

printf "Verifying %s is available\n" "$ISTIO_ENVOY_RELEASE_URL"
until curl --output /dev/null --silent --head --fail "$ISTIO_ENVOY_RELEASE_URL"; do
    printf '.'
    sleep $SLEEP_TIME
done
printf '\n'

printf "Verifying %s is available\n" "$ISTIO_ENVOY_ARM_RELEASE_URL"
until curl --output /dev/null --silent --head --fail "$ISTIO_ENVOY_ARM_RELEASE_URL"; do
    printf '.'
    sleep $SLEEP_TIME