master_upgrade=true
node_upgrade=true
node_prereqs=false
local_binaries=false
env_os_distro=false
node_upgrade_parallelism=1

while getopts ":MNPlcho" opt; do
  case "${opt}" in
    M)
      node_upgrade=false
      ;;
    N)
      master_upgrade=false
      ;;
    P)
      node_prereqs=true
      ;;
    l)

  if [[ -z "${apiserver_path}" ]]; then
    return
  fi
  echo -n "$(dirname "${apiserver_path}")"
}

### Allow user to supply the source directory.
GO_OUT=${GO_OUT:-}
while getopts "ho:O" OPTION
do
    case ${OPTION} in
        o)
            echo "skipping build"
            GO_OUT="${OPTARG}"
            echo "using source ${GO_OUT}"
            ;;
        O)