Make tests for group membership more readable

roles/lmn_fvs/tasks/main.yml

@@ -92,7 +92,7 @@
       - plasma-discover
     autoremove: true
     state: absent
-  when: not (groups.teacherlaptop is defined and inventory_hostname in groups.teacherlaptop)
+  when: "'teacherlaptop' not in group_names"
 
 - name: Make sure wireshark works for all users after installation and upgrades
   ansible.builtin.copy:
@@ -160,7 +160,7 @@
     - pwroff.timer
     - reporter.service
     - reporter.timer
-  when: not (groups.teacherlaptop is defined and inventory_hostname in groups.teacherlaptop)
+  when: "'teacherlaptop' not in group_names"
 
 - name: Enable pwroff.timer
   systemd:
@@ -169,13 +169,13 @@
   loop:
     - pwroff.timer
     - reporter.timer
-  when: not (groups.teacherlaptop is defined and inventory_hostname in groups.teacherlaptop)
+  when: "'teacherlaptop' not in group_names"
 
 - name: PXE first boot order
   command: /usr/local/sbin/bootorder.sh
   register: cmd_result
   changed_when: cmd_result.stdout is not search('Nothing to do.')
-  when: groups.PCroom is defined and inventory_hostname in groups.PCroom
+  when: "'PCroom' in group_names"
 
 - name: Copy dolphin config scripts
   ansible.builtin.copy:
@@ -220,7 +220,7 @@
       [AC][SuspendSession]
       idleTime=7200000
       suspendType=8
-  when: not (groups.teacherlaptop is defined and inventory_hostname in groups.teacherlaptop)
+  when: "'teacherlaptop' not in group_names"
 
 - name: Start with empty session by default
   ansible.builtin.copy:
@@ -251,7 +251,7 @@
           Exec=lmn-fix-screen
           Type=Application
           NoDisplay=true
-  when: groups.CloneScreen is defined and inventory_hostname in groups.CloneScreen
+  when: "'CloneScreen' in group_names"
 
 #- name: Avoid starting kscreen (confusing autodetection)
 #  ansible.builtin.copy: