Failed to get D-Bus connection: Operation not permitted
Use this command
docker run -d -it --privileged {Image ID} /usr/sbin/initAnd access root in container
systemctl start httpd.serviceThis should work!
On Centos7 all the services are started and stopped throught the systemd daemon. The systemctl command will simply try to talk to the daemon by using a d-bus channel - and that's where the message comes from.
Instead of running a container in priviledged mode (so it is not really contained) you could also try out the docker-systemctl-replacement to avoid the situation.
To elaborate on @Guido's answer, what worked for me was copying systemctl.py from here and placing it in the same directory as my Dockerfile, and then adding the following to my Dockerfile:
COPY systemctl.py /usr/bin/systemctlRUN chmod a+x /usr/bin/systemctlE.g., this allowed me to start an sshd service like so:
service sshd start