[erik@laptop ~]$ ssh -X testuser@server.example.com

[testuser@server ~]$ cd ~/test
[testuser@server test]$ cat Dockerfile
FROM fedora

RUN yum -y update
RUN yum -y install xorg-x11-apps && yum clean all

CMD [ "/usr/bin/xclock" ]
[testuser@server test]$ buildah bud -t xclockimage .

[testuser@server ~]$ podman run -ti -e DISPLAY --rm  -v
~/.Xauthority:/root/.Xauthority:Z  localhost/xclockimage
Error: Can't open display: localhost:10.0
[testuser@server ~]$

[testuser@server ~]$ cat /etc/redhat-release
Fedora release 29 (Twenty Nine)
[testuser@server ~]$ podman --version
podman version 1.0.0
[testuser@server ~]$ sestatus
SELinux status:                 enabled
SELinuxfs mount:                /sys/fs/selinux
SELinux root directory:         /etc/selinux
Loaded policy name:             targeted
Current mode:                   enforcing
Mode from config file:          enforcing
Policy MLS status:              enabled
Policy deny_unknown status:     allowed
Memory protection checking:     actual (secure)
Max kernel policy version:      31
[testuser@server ~]$