enable unattended upgrade

roles/sysutils/tasks/main.yml

@@ -12,6 +12,13 @@
     install_recommends: false
     name: ubicast-config
 
+- name: enable unattended upgrades
+  copy:
+    dest: /etc/apt/apt.conf.d/20auto-upgrades
+    content: |
+      APT::Periodic::Update-Package-Lists "1";
+      APT::Periodic::Unattended-Upgrade "1";
+
 # FIREWALL
 
 - name: firewall