WIP podman & distrobox

[satmandu]

• This is a work in progress podman and distrobox package. (distrobox requires a working podman.)
• The primary remaining issue with this is figuring out cgroup settings and startup scripts.
• All pre-reqs have been merged.

This is as far as I have gotten with podman:
Using runc:

chronos@localhost /usr/local/lib/crew/packages (master %|SPARSE>)$ sudo -s
# podman pull alpine:latest
✔ docker.io/library/alpine:latest
Trying to pull docker.io/library/alpine:latest...
Getting image source signatures
Copying blob 9d16cba9fb96 done  
Copying config 9617696764 done  
Writing manifest to image destination
Storing signatures
961769676411f082461f9ef46626dd7a2d1e2b2a38e6a44364bcbecf51e66dd4
# podman run -it alpine bash
Your kernel does not support pids limit capabilities or the cgroup is not mounted. PIDs limit discarded.
Error: runc: runc create failed: unable to start container process: unable to apply cgroup configuration: openat2 /sys/fs/cgroup/cpuset/libpod_parent/cpuset.cpus: no such file or directory: OCI runtime attempted to invoke a command that was not found
# 

Using crun:

sudo podman run -tid --net host busybox sh
Your kernel does not support pids limit capabilities or the cgroup is not mounted. PIDs limit discarded.
Error: OCI runtime error: crun: mount `proc` to `/proc`: Too many levels of symbolic links

Assistance would be appreciated!

Works properly:

• x86_64
• armv7l

Run the following to get this pull request's changes locally for testing.

CREW_REPO=https://github.com/satmandu/chromebrew.git CREW_BRANCH=podman_distrobox crew update

[s1gnate-sync]

Just for the record - I've commented about possible cause and potential fix containers/crun#1121 (comment)