Dockerfile.user

FROM pcourbin/bookdown:extended
# Or FROM pcourbin/bookdown:base

ARG b_mainFile=index.Rmd
ENV mainFile=$b_mainFile

ARG uid=0
ENV b_uid=$uid
ARG bookdownuser=root
ENV b_bookdownuser=$bookdownuser

# add non-root user (workaround for docker)
RUN testName="$(awk -v uid=$b_uid -F":" '{ if($3==uid){print $1} }' /etc/passwd)" && \
  if [ "${testName}" = "" ] && [ "${b_bookdownuser}" != "root" ] ; then useradd -m -u $b_uid $b_bookdownuser ; echo "Create user '${b_bookdownuser}'" ;\
  else  (if [ $testName != "" ] && [ "$b_bookdownuser" != "$testName" ] ; then \
  (>&2 echo "You have a choose a uid '${b_uid}' which is already taken. If you want to use this uid, please, juste select as 'bookdownuser' the name '${testName}'") ; fi ; ); \
  fi && \
  (>&2 echo We will try to use the user $b_uid / $b_bookdownuser) ;
USER $b_bookdownuser