centos:7 working systemd

Dockerfile

# modified from some redhat page
# to run: --privileged -ti -v /sys/fs/cgroup:/sys/fs/cgroup:ro
FROM centos:7
MAINTAINER "jason" <me@jason.lv>
ENV container docker
RUN yum -y update; \
yum clean all; \
yum -y install systemd; \
yum clean all; \
yum install openssh-server -y; \
yum clean all; \
systemctl enable sshd.server; \
(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/*;
EXPOSE 22
VOLUME [ "/sys/fs/cgroup" ]
CMD [ "/usr/sbin/init" ]

http://developerblog.redhat.com/2014/05/05/running-systemd-within-docker-container/

also this is an abomination do not use this if it still even works

leaving this here to publicly shame myself for putting systemd+sshd in a container