Implemented defrost timer

roles/system-maintenance-service-freezer/files/system-maintenance-service-freezer.py

@@ -51,7 +51,9 @@ def stop_timer(service):
     """
     Stop and disable a systemd timer for a service if it exists.
     """
-    if service_file_exists(service, "timer"):
+    if service == "system-maintenance-service-defrost":
+        print(f"Ignore: {service}")
+    elif service_file_exists(service, "timer"):
         timer_name = f"{service}.timer"
         subprocess.run(['systemctl', 'stop', timer_name])
         subprocess.run(['systemctl', 'disable', timer_name])

roles/system-maintenance-service-freezer/handlers/main.yml

@@ -0,0 +1,6 @@
+- name: "restart system-maintenance-service-defrost.timer"
+  systemd:
+    name: system-maintenance-service-defrost.timer
+    state: restarted
+    enabled: yes
+    daemon_reload: yes

roles/system-maintenance-service-freezer/tasks/main.yml

@@ -20,4 +20,13 @@
 
 - name: "set variable to prevent loading when action status didn't change"
   set_fact:
-    maintenance_service_freeze_action_last: "{{system_maintenance_service_freeze_action}}"
+    maintenance_service_freeze_action_last: "{{system_maintenance_service_freeze_action}}"
+
+- name: create system-maintenance-service-defrost.timer
+  template:
+    src: system-maintenance-service-defrost.timer.j2
+    dest: "/etc/systemd/system/system-maintenance-service-defrost.timer"
+  register: system_maintenance_service_defrost_timer
+  changed_when: system_maintenance_service_defrost_timer.changed or activate_all_timers | bool
+  notify: restart system-maintenance-service-defrost.timer
+  when: run_once_system_maintenance_service_freeze is not defined

roles/system-maintenance-service-freezer/templates/system-maintenance-service-defrost.timer.j2

@@ -0,0 +1,10 @@
+[Unit]
+Description=starts system-maintenance-service-defrost.service
+
+[Timer]
+OnCalendar={{on_calendar_defrost}}
+RandomizedDelaySec={{randomized_delay_sec}}
+Persistent=false
+
+[Install]
+WantedBy=timers.target

roles/system-maintenance-service-freezer/templates/system-maintenance-service-freezer.service.j2

@@ -4,4 +4,5 @@ OnFailure=systemd-notifier@%n.service
 
 [Service]
 Type=oneshot
-ExecStart=/bin/sh -c '/usr/bin/python {{ path_system_maintenance_service_freezer_script }} {{item}} {{ system_maintenance_services | join(",") }}'
+ExecPreStart=/bin/sh -c '/usr/bin/python {{ path_system_maintenance_service_freezer_script }} {{item}} "{{ system_maintenance_services + [item] }}"'
+ExecStart=/bin/sh -c '/usr/bin/python {{ path_system_maintenance_service_freezer_script }} {{item}} "{{ system_maintenance_services }}"'