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I'm not quite up to speed here, but aren't these simple linux user lands, running on a normal Kernel, and not actually real OSes that provide a new set of APIs

by xgbi 12y ago

I'm not quite up to speed here, but aren't these simple linux user lands, running on a normal Kernel, and not actually real OSes that provide a new set of APIs to interact with the system? I see all these "DockerOS", "RancherOS", "CoreOS" things and at the end it is just a kernel and a set of programs that take over the init process in a certain way.

lsaferite 12y ago
Careful or you may fall into the 'What is an OS' discussion. :) They are all kernels and suites of tools, namely Docker and usually Busybox. The primary objective in all cases is to have a minimal OS host for Docker containers so they can drop the normal suite of tools.