Transitioning from Docker to Podman
At my company, we run our CI/CD (Jenkins) using the Docker-in-Docker paradigm to facilitate easy maintainability of the CI itself and allow us to run containerized builds.When we shifted to RHEL 8, we attempted to move this over to Podman and it went miserably (this was back in November 2019). The main reason being is that podman-in-podman doesn't work and had bugs (at least back in Nov 2019). Maybe it fixed now but this was our experience. We ended up doing quite a bit of analysis on podman only to conclude it's simply not there yet relative to docker (ecosystem and ergonomics).There are quite a few corner cases that docker quite simply supports out of the box beautifully that podman doesn't support or just has bugs.I like the what the project is trying to solve by being daemonless, but this is not as simple as a drop in replacement for docker that RedHat markets it as (alias docker=podman).We ended up sticking to docker professionally and personally, I am still using docker over podman. The ecosystem and ergonomics are just far too nice to give up over podman.