Unattended support for the new authentication model

[jreidinger]

Problem

There is plan to adopt new authentication model where root password does not need to be set and use other ways to authenticate.

trello: https://trello.com/c/qRvd2Q4K/4182-5-agama-unattended-support-for-the-new-authentication-model

Solution

As the first step ensure that unattended installation allows and works with new authentication model. This includes following changes:

• first user will be in wheel group
• root password is explicitelly locked if not specified
• if root ssh key is used, ensure that sshd is enabled and firewall has port open
• for TW/slowroll use new first user policy by installing proper package

Testing

• Tested manually

AI

• check SLES situation