FROM centos:7
ENV container docker
RUN ( \
    cd /lib/systemd/system/sysinit.target.wants/; \
    for i in *; do \
      [ $i == systemd-tmpfiles-setup.service ] || rm -f $i; \
    done \
  ); \
  rm -f /lib/systemd/system/multi-user.target.wants/*;\
  rm -f /etc/systemd/system/*.wants/*;\
  rm -f /lib/systemd/system/local-fs.target.wants/*; \
  rm -f /lib/systemd/system/sockets.target.wants/*udev*; \
  rm -f /lib/systemd/system/sockets.target.wants/*initctl*; \
  rm -f /lib/systemd/system/basic.target.wants/*;\
  rm -f /lib/systemd/system/anaconda.target.wants/*; \
  yum makecache fast; \
  yum install -y \
    /usr/bin/python /usr/bin/python2-config sudo \
    yum-plugin-ovl bash iproute; \
  sed -i 's/plugins=0/plugins=1/g' /etc/yum.conf; \
  yum clean all; \
  chmod 777 /root;

VOLUME [ "/sys/fs/cgroup" ]
CMD [ "/usr/sbin/init" ]