Create a 32-bit Fedora 21 base image for Docker, with systemd, the easy way.
Initial image is imported from the official cloud release in qcow2 format:
wget http://download.fedoraproject.org/pub/fedora/linux/releases/21/Cloud/Images/i386/Fedora-Cloud-Base-20141203-21.i386.qcow2
virt-tar-out -a Fedora-Cloud-Base-20141203-21.i386.qcow2 / - \
| docker import - marina/fedora21-i386
Hosted on Docker Hub at marina/fedora21-i386.
systemd is enabled using the technique from maci0/docker-systemd-unpriv.
To run unprivileged, you need to mount croups read-only:
docker run -d -v /sys/fs/cgroup:/sys/fs/cgroup:ro marina/fedora21-i386:0.1.1