This image serves as a base image. You can easily build on top of it by installing any daemon packaged in Fedora.
At the time of writing this document, several bugs prevent running this image conveniently on a Fedora 25 host. The following example describes running this Fedora image on a Centos 7 host. Experience on a Fedora host will be hopefully the same in the future.
Let us consider httpd as our daemon of choice in this example. In your Dockerfile, do:
FROM fedora-init:25
RUN dnf -y install httpd && dnf clean all && systemctl enable httpd
Build your container:
docker build -t name_of_the_image .
Then run your container:
docker run -d -p 80:80 -v /somedirectory:/var/log/httpd:rw name_of_the_image
Mounting /var/log/httpd is important because by default tmpfs is mounted over /var/log, httpd can not find its subfolder there and fails to start. This is a bug in oci-systemd-hook and will be hopefully solved soon.
To stop the container gracefully, do:
docker stop name_of_the_container
This image has STOPSIGNAL redefined to SIGRTMIN+3, which causes systemd to shutdown cleanly. (The usual STOPSIGNAL SIGTERM stops most of usual processes, but not systemd. Systemd reexecs itself on SIGTERM.) Currently it takes a lot of time to shutdown systemd in a container - longer than the grace period after which it is deemed unresponsive and mercilessly killed by docker.
Procps-ng is installed in this image. You can use it to docker exec somecontainer ps to get info about processes running in a container in a convenient way.