roles/mgrote_munin_server/handlers/main.yml

@@ -6,4 +6,13 @@
     enabled: true
     masked: false
     state: restarted
+
+- name: "restart munin"
+  become: true
+  ansible.builtin.systemd:
+    name: munin
+    enabled: true
+    masked: false
+    state: restarted
+
 ...

roles/mgrote_munin_server/tasks/main.yml

@@ -46,6 +46,7 @@
     mode: '0644'
     owner: munin
     group: munin
+  notify: "restart munin"
 
 - name: Enable or disable the munin cron job.
   lineinfile: