tl;dr - Make sure /etc/subuid and /etc/subgid have good ranges, podman stores it’s auth config at ${XDG_RUNTIME_DIR}/containers/auth.json, and make sure you use :z on volumes you want to re-use with different containers (ex. postgres). After getting my podman setup working I ran into a few issues that were work writing up real quick just in case anyone else runs into them. ISSUE: Not enough subuids and/or subgids While building a relatively large image with many layers I ran out of subuid/s...
