Have official images be supported for podman

[trymeouteh]

Please consider making all of the official images work in podman, without root.

Or allow the official images to work without root and add documention on how to setup each image without root, without losing any features the image offers.

[AkihiroSuda]

Not sure if any of these issues are related to docker running with root.

Would like to see the docker images not require root which will allow them to work with other container engines like podman.
#16043

Originally posted by @trymeouteh in #14889 (comment)

Rootless isn't really specific to Podman and has been supported by Docker/Moby too for a long time
https://rootlesscontaine.rs/getting-started/docker/

[tianon]

Any image that doesn't work in podman is probably a bug in podman (or an issue with your deployment parameters, like file sharing issues due to the technical constraints of the kernel), not these images. 😕 😅

(also, many of the images already can run as non-root -- see "Running as an arbitrary user" on https://hub.docker.com/_/php#:~:text=Running%20as%20an%20arbitrary%20user, for example)