Seemingly identical configurations, different results. When two methods for setting up x86 emulation on ARM showed the exact same system configuration but behaved completely differently in Docker, I began questioning my system administration knowledge and my sanity – and briefly contemplated a new career as a blacksmith.
This is a debugging tale for those working with containers, and a reminder that things aren’t always what they seem in Linux, all with a big pinch reminder to Read the Fine Manual, Always!