message: docker: the user directory already exists
diff: USER_ID=${LOCAL_USER_ID:-1000}
  echo "Starting with UID : $USER_ID"
  -useradd --shell /bin/bash -u $USER_ID -o -c "" -m user
  +useradd --shell /bin/bash -u $USER_ID -o -c "" -M user
  export HOME=/home/user
  exec /bin/su user -c "$@"
  