To be able to run a Pagure instance locally I need to run it on Fedora. But I want to keep Arch Linux on my computer. Thus I will make a Fedora container from an Arch Linux host.

There is this article: Container technologies in Fedora: systemd-nspawn in Fedora magazine. I think systemd-nspawn is what I could use.

There is also this gist repo: Bootstrap systemd-nspawn Fedora container from an Arch Linux host. I think I could use that too.

yaourt -Sy yum

I added bootstrap repos to /etc/yum.repos.d/boot.repo, that is to create a directory yum.repos.d and a file boot.repo with this content:

[fedora]
name=Fedora $releasever - $basearch
failovermethod=priority
#baseurl=http://download.fedoraproject.org/pub/fedora/linux/releases/$releasever/Everything/$basearch/os/
metalink=https://mirrors.fedoraproject.org/metalink?repo=fedora-$releasever&arch=$basearch
enabled=1
gpgcheck=0
repo_gpgcheck=0

[updates]
name=Fedora $releasever - $basearch - Updates
failovermethod=priority
#baseurl=http://download.fedoraproject.org/pub/fedora/linux/updates/$releasever/Everything/$basearch/
metalink=https://mirrors.fedoraproject.org/metalink?repo=updates-released-f$releasever&arch=$basearch
enabled=1
gpgcheck=0
repo_gpgcheck=0

Bootstrap:

yum --installroot=/var/lib/machines/fedora install systemd passwd dnf fedora-release NetworkManager

Set root password:

systemd-nspawn -M fedora

passwd

Start and login into the container:

machinectl start fedora

machinectl login fedora

And the Fedora container is working!

Update: Or at least mostly working. There is some problem starting the machine the next time just with machinectl start fedora. It results in some Permission denied stuff. Solution: start the container like with systemd-nspawn and path to the machine:

sudo systemd-nspawn -b -D /var/lib/machines/fedora

Update: How to access files located in the fedora container from arch: Just go as sudo to /var/lib/machines/fedora and all the path till the desired place and copy from there to arch. Fairly easy. Thanks Pingou.