function cleanup_kind_clusters() {
  echo "Test exited with exit code $?."
  for c in "${CLUSTER_NAMES[@]}"; do
    cleanup_kind_cluster "${c}"
  done
}

# setup_kind_clusters sets up a given number of kind clusters with given topology
# as specified in cluster topology configuration file.
# 1. IMAGE = docker image used as node by KinD
# 2. IP_FAMILY = either ipv4 or ipv6
#