One thing I want to point out though for anybody not familiar with the differences between podman and docker, for the most part alias docker=podman will "just work" except for these situations:
1. docker-compose. podman-compose attempts to cover this but I've heard it's not quite there yet
2. Mounting the docker socket into the container. Podman is daemonless which means that won't work. There is work going on right now to allow Podman to be driven in a similar way if needed, but I recently tried to set it up and hit a bug[1]. CRI-O brings a daemon, and it is used extensively in Kubernetes and OpenShift, but not so much outside of that.
One thing I want to point out though for anybody not familiar with the differences between podman and docker, for the most part alias docker=podman will "just work" except for these situations:
1. docker-compose. podman-compose attempts to cover this but I've heard it's not quite there yet
2. Mounting the docker socket into the container. Podman is daemonless which means that won't work. There is work going on right now to allow Podman to be driven in a similar way if needed, but I recently tried to set it up and hit a bug[1]. CRI-O brings a daemon, and it is used extensively in Kubernetes and OpenShift, but not so much outside of that.
[1] https://github.com/containers/podman/issues/8323