Updates to segregate configs by device class

Split cloud VMs out from local VMs in 'cloud' group
Generalize networkd install/config
Generalize sshd config
Create general update playbook
Add host vm-host-nextcloud

playbooks/update-users-local.yml

@@ -159,3 +159,9 @@
         state: directory
       with_items:
         - "{{ local_users | difference([None]) }}"
+
+- hosts: all
+  name: Disable SSH password authentication
+  tasks:
+    - import_tasks: tasks/sshd/disable-password-auth.yml
+      when: enable_ssh_password_auth|bool == false