Hey,
I made a docker container with CentOS7.6, however, can not run a systemctl commands.
It failded “Failed to get D-Bus connection: Operation not permitted” Error.
How to permit the operation …?
f.island
it solved. run the docker with privileged option.
close this topic.
f.island
Using --privileged is not an ideal solution, it weakens the isolation between the container and the host.
An alternative to run systemd inside a unprivileged container is to use Docker plus the new Sysbox runtime:
docker run --runtime=sysbox-runc -it nestybox/ubuntu-bionic-systemd
This gets you a well isolated container (via the Linux user namespace) that can easily run systemd (as well as other system software such as Docker itself or even Kubernetes) with proper isolation from the underlying host.