Introduction of a new device class (teacherlaptop).

- Wifi-devices will be managed by NetworkManager
 - (USB-)Dockingstation with same MAC as internal device
   will be assigned to virbr1
 - users with role-teacher have privilege
   - to create new NetworkManager connections
   - install additional software
   - change luks-key
 - package plasma-discover will not be removed (for teacherlaptops)
 - http-proxy-Settings will be configured by auto-detect
 - providing sudo-script to mount default-school from server after
   wireguard-connection is established

roles/lmn_networkd/tasks/main.yml

@@ -1,6 +1,20 @@
 ---
 # temporary disable network manager
-- name: Use iwd but ignore interfaces managed by systemd-networkd (wlan0,en*)
+- name: Use iwd but ignore interfaces managed by systemd-networkd (en*)
+  blockinfile:
+    dest: /etc/NetworkManager/NetworkManager.conf
+    block: |
+      [device]
+      match-device=interface-name:wl*
+      wifi.backend=iwd
+      [connection]
+      match-device=interface-name:wl*
+      ipv4.route-metric=2048
+      [keyfile]
+      unmanaged-devices=interface-name:en*;interface-name:vm*
+  when: groups.teacherlaptop is defined and inventory_hostname in groups.teacherlaptop
+
+- name: Use iwd for USB-Wlan-Sticks but ignore interfaces managed by systemd-networkd (wlan0,en*)
   blockinfile:
     dest: /etc/NetworkManager/NetworkManager.conf
     block: |
@@ -12,6 +26,7 @@
       ipv4.route-metric=2048
       [keyfile]
       unmanaged-devices=interface-name:wlan0;interface-name:en*;interface-name:vm*
+  when: not (groups.teacherlaptop is defined and inventory_hostname in groups.teacherlaptop)
 
 - name: Enable Networkmanager
   ansible.builtin.systemd:
@@ -36,6 +51,16 @@
     line: "MACAddress={{ ansible_facts[ansible_interfaces | select('search', '^en.*') | first].macaddress }}"
   when: ansible_interfaces | select('search', '^en.*')
 
+- name: Configure systemd-networkd ethernet.network
+  ansible.builtin.copy:
+    dest: /etc/systemd/network/35-ethernet.network
+    content: |
+       [Match]
+       Name=enx{{ ansible_facts[ansible_interfaces | select('search', '^enp.*') | first].macaddress | replace(':','') }}
+       [Network]
+       Bridge=virbr1
+  when: groups.teacherlaptop is defined and inventory_hostname in groups.teacherlaptop
+
 - name: Configure systemd-networkd ethernet.network
   ansible.builtin.copy:
     dest: /etc/systemd/network/40-ethernet.network
@@ -88,3 +113,9 @@
        DHCP=yes
        [DHCPv4]
        UseDomains=true
+  when: not (groups.teacherlaptop is defined and inventory_hostname in groups.teacherlaptop)
+
+- name: Enable systemd-networkd
+  ansible.builtin.systemd:
+    name: systemd-networkd.service
+    enabled: True