[bryanlarsen]

If you have SSHD in the minimal image then you have to deal with host keys.

- on embedded and some other places where minimal images are used, generating the host key on first run can cause a very significant startup delay.

- on some container environments, environments are so identical that you might not have enough entropy to generate sufficiently unique keys.

- if somebody generates a host key and then creates an image from a running container, then you might end up distributing a host key, making what should be private public.

I've probably got some of these details wrong and am going to be promptly corrected, but there are some very good reasons for excluding sshd.