If default_user="root" and "ssh_pwauth=true" then sshd PermitRootLogin should be "yes", not "without-password"

This bug was originally filed in Launchpad as [LP: #2002868](https://bugs.launchpad.net/cloud-init/+bug/2002868)

Launchpad details

affected_projects = []

assignee = None

assignee_name = None

date_closed = None

date_created = 2023-01-14T11:29:00.351421+00:00

date_fix_committed = None

date_fix_released = None

id = 2002868

importance = wishlist

is_complete = False

lp_url = https://bugs.launchpad.net/cloud-init/+bug/2002868

milestone = None

owner = nux-m

owner_name = Nux-m

private = False

status = triaged

submitter = nux-m

submitter_name = Nux-m

tags = ['pwauth']

duplicates = []

_Launchpad user **Nux-m(nux-m)** wrote on 2023-01-14T11:29:00.351421+00:00_

As per the $summary, if default_user is set to "root" and "ssh_pwauth=true", then sshd_config should be enforced with "PermitRootLogin yes" instead of leaving the defaults which nowadays in many distros is "without-password".

Thanks

Start by locating the cloud-init code and tests that handle default_user, ssh_pwauth, and sshd_config generation. Reproduce the configuration for default_user="root" with ssh_pwauth=true, then verify that the generated PermitRootLogin setting is "yes" and that existing behavior remains covered by tests.

Written by the indexing model from the issue text.