roles/mgrote_munin_server/handlers.yml/main.yml

@@ -0,0 +1,9 @@
+---
+- name: restart apache2
+  become: true
+  ansible.builtin.systemd:
+    name: apache2
+    enabled: true
+    masked: false
+    state: restarted
+...

roles/mgrote_munin_server/tasks/main.yml

@@ -18,6 +18,7 @@
   ansible.builtin.template:
     src: apache.conf
     dest: /etc/apache2/sites-available/000-default.conf
+  notify: restart apache2
 
 - name: Enable fgcid
   community.general.apache2_module: