Make Kathara be compatible with Podman

[q2dg]

Is your feature request related to a problem? Please describe.

Yes. I can't run Kathara on my Fedora host because Docker isn´t available

Describe the solution you'd like

Make Kathara run over Podman (a root-less alternative to Docker). Thanks!

[tcaiazzi]

Hello @q2dg,

Thanks for opening the issue!

We are thinking about supporting also Podman, but it is not a simple and fast change.

However, Docker is available on Fedora and we always release Kathará package for Fedora both for x86_84 and arm architecture.

To install Docker you only need to follow the official Docker guide.
Then, you can install the last release of Kathará from the releases section. You can find more instructions in the installation guide on the wiki.

Let me know if you need more help!

Many thanks,
Tommaso

[q2dg]

Oooh, thanks a lot! I wasn't aware of Docker repository for Fedora!
Anyway, I'll keep this issue open in order to keep it in mind
Thanks!

[Darin755]

I think Podman would be ideal since it is daemonless. Kathara could just manage its own containers instead of connecting to a daemon.

[Skazza94]

Hi @Darin755,
we are still open to integrating Podman into Kathará.

However, the current Python APIs are still immature and incomplete, for example, the stream APIs (to open tty connections with containers) are still not implemented. Hence, we still need to wait that the library becomes more mature to start implementing it. :)

Cheers,
Mariano.

[Darin755]

@Skazza94
I think that is totally fair. Assuming that the Podman Python API stable would it be possible to run Kathara totally rootless with usermode networking? Ideally it should be able to run under a local account without any extra permissions. I'm not sure how feasible that is but theoretically you could emulate layer 2. Ideally there should be a stand alone application that is self contained. I really like where this is going but right now the bar to entry is pretty high.

[Darin755]

Does Kathara need root? Podman has a Docker compatibility mode but I'm not sure if kathara needs rootful Podman

https://podman-desktop.io/docs/migrating-from-docker/customizing-docker-compatibility