在容器中使用systemctl报Failed to get D-Bus connection: Operation not permitted的错误，则在启动的时候把sys/fs/cgroup映射到docker容器中。
docker run --privileged --name=test --hostname=test -v /sys/fs/cgroup:/sys/fs/cgroup image /usr/sbin/init
Failed to get D-Bus connection: Operation not permitted
转载于:https://www.cnblogs.com/gaoyuechen/p/11441975.html