# 4. NOMETALBINSTALL: Dont install matllb if set.
# This function returns 0 when everything goes well, or 1 otherwise
# If Kind cluster was already created then it would be cleaned up in case of errors
function setup_kind_cluster() {
  local NAME="${1:-istio-testing}"
  local IMAGE="${2:-"${DEFAULT_KIND_IMAGE}"}"
  local CONFIG="${3:-}"
  local NOMETALBINSTALL="${4:-}"

# very old and likely no one was really using it (at least temporarily).

# Download Envoy debug and release binaries for Linux x86_64. They will be included in the
# docker images created by Dockerfile.proxyv2.

# 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