32-64-dockerfile

32-64-dockerfile

FROM i386/centos:7
#FROM centos:7

RUN \
  uname -m | sed 's/^/buildhost: /g' \
  && echo '#!/bin/bash' > /entrypoint.sh \
  && if $(bash -c 'set | grep ^HOSTTYPE= | cut -f2 -d=' | grep -q '86$') ; then \
    echo 'this is x86' \
    && echo 'linux32 "${@}"' >> /entrypoint.sh ; \
  else \
    echo 'this is x86_64' \
    && echo 'linux64 "${@}"' >> /entrypoint.sh ; \
  fi \
  && chmod 755 /entrypoint.sh \
  && echo done

ENTRYPOINT ["/entrypoint.sh"]
CMD ["bash","-il"]