Using systemctl in docker

1.download and build this Dockerfile #docker build --rm -t local/c7-systemd .

2.run image in background #docker run --privileged -tid -e "container=docker" -v /sys/fs/cgroup:/sys/fs/cgroup local/c7-systemd /usr/sbin/init

3.find container id #docker ps -a

4.exec container s398sd0323rsefs3rsf3 #docker exec -ti s39 bash