Podman support

[mat-jung-ibm]

I tried to run this with podman, instead of docker.

I was able to get beyond first test, if docker is existing, by running following command:

ln -s /var/run/podman/podman.sock /var/run/docker.sock

The cluster creation command was able to pull containers and create the cluster.
It ran into a timeout error on communication:

# ./cn cluster start -d /s3 filenet-cluster
The container image (ceph/daemon) is not present, pulling it. 
This operation can take a few minutes.
.....................................................................................
2025/02/26 19:41:51 Running cluster filenet-cluster | image ceph/daemon | flavor default {512MB Memory, 1 CPU} ...
2025/02/26 19:42:30 Timeout while trying to reach: http://192.168.178.139:podman
2025/02/26 19:42:30 S3 gateway for cluster filenet-cluster is not responding. Showing S3 logs (if any):
dcat: /var/log/ceph/client.rgw.ceph-nano-filenet-cluster-faa32aebf00b.log: No such file or directory
2025/02/26 19:42:30 Please open an issue at: https://github.com/ceph/cn.

What I hereby do.
It looks as if it gets the port wrong.

Any idea?