Add system upgrade role

initial commit

roles/system-upgrade/handlers/main.yml

@@ -0,0 +1,10 @@
+- name: reboot host
+  reboot:
+    msg: "Reboot initiated by Ansible"
+    connect_timeout: 5
+    reboot_timeout: 600
+    pre_reboot_delay: 0
+    post_reboot_delay: 30
+    test_command: whoami
+  become: true
+  when: reboot_required_file.stat.exists