Requires passwordless sudo

[darkone23]

The script uses su - $owner everywhere to run commands as the result of whoami.
This results in tty tickets if you don't have passwordless sudo.

Why not just run the commands instead?

For example,

Instead of:

have_host=$(su - $owner -c "ssh-keygen -F $keygen_name -f $file")

Why not just:

have_host=$(ssh-keygen -F $keygen_name -f $file)

[panpomaly]

After fixing a problem with the default file path (3b1fbf4), i was also wondering why using su - $owner at all.
su will ask for a password if not run as root.

This could probably all be done as $(whoami) and fix the permissions later or just use the first version of this module (9d05b6e) and use sudo_user and sudo for the ansible task.
I'm doing the latter.