Implemented defrost timer

group_vars/all

@@ -1,15 +1,18 @@
 # Server Tact Variables 
 
+## Ours in which the server is 100% working. Rest of the time is reserved for maintanance
+hours_server_awake: "{{ range(9, 24) | list + range(0, 3) | list }}"
+
 ## Random delay for systemd timers to avoid peak loads.
-randomized_delay_sec:                         "15min" 
+randomized_delay_sec:                         "5min" 
 
 ## Schedule for Health Checks
 on_calendar_health_btrfs:                     "*-*-* 00:00:00" 
 on_calendar_health_journalctl:                "*-*-* 00:00:00"
 on_calendar_health_disc_space:                "*-*-* 06,12,18,00:00:00"
-on_calendar_health_docker_container:          "*-*-* 09,10,11,12,13,14,15,16,17,18,19,20,21,22,23,00,01,02:00:00"
+on_calendar_health_docker_container:          "*-*-* {{ hours_server_awake | join(',') }}:00:00"
-on_calendar_health_docker_volumes:            "*-*-* 09,10,11,12,13,14,15,16,17,18,19,20,21,22,23,00,01,02:15:00"
+on_calendar_health_docker_volumes:            "*-*-* {{ hours_server_awake | join(',') }}:15:00"
-on_calendar_health_nginx:                     "*-*-* 09,10,11,12,13,14,15,16,17,18,19,20,21,22,23,00,01,02:45:00"
+on_calendar_health_nginx:                     "*-*-* {{ hours_server_awake | join(',') }}:45:00"
 
 ## Schedule for Cleanup Tasks
 on_calendar_cleanup_backups:                  "*-*-* 06,12,18,00:30:00"
@@ -20,7 +23,8 @@ on_calendar_backup_docker_to_local:           "*-*-* 03:30:00"
 on_calendar_backup_remote_to_local:           "*-*-* 21:30:00"
 
 ## Schedule for Maintenance Tasks
-on_calendar_heal_docker:                      "*-*-* 09,10,11,12,13,14,15,16,17,18,19,20,21,22,23,00,01:30:00"
+on_calendar_heal_docker:                      "*-*-* {{ hours_server_awake | join(',') }}:30:00"
+on_calendar_defrost:                          "*-*-* 00:00:00"
 on_calendar_renew_lets_encrypt_certificates:  "*-*-* 12,00:30:00"
 on_calendar_deploy_mailu_certificates:        "*-*-* 13,01:30:00"
 on_calendar_msi_keyboard_color:               "*-*-* *:*:00"

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

@@ -21,3 +21,12 @@
 - name: "set variable to prevent loading when action status didn't change"
   set_fact:
     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 }}"'