Add option to await confirmation

[Firesphere]

Is your feature request related to a problem? Please describe

When deploying a new server, new SSH keys for this server and their new users are generated. It would be incredibly useful to be able to do something akin to this procedure:

1. ssh-keygen
2. echo public key
3. Did you add the public key to your git repository? [Y/n]
4. Await Y before continuing

Describe the solution you'd like

What I described above, a way to await user confirmation before continuing to the next task.