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@ -5,7 +5,9 @@ import os
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from datetime import datetime
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def parse_time_to_seconds(time_str):
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"""Convert time string to seconds."""
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"""
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Convert a time string (e.g., '1h', '30min', '45s') to seconds.
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"""
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units = {"s": 1, "min": 60, "h": 3600}
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if time_str[-3:] in units:
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number, unit = time_str[:-3], time_str[-3:]
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@ -18,116 +20,123 @@ def parse_time_to_seconds(time_str):
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return int(number) * units[unit]
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def service_file_exists(service_name, service_type="service"):
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"""Check if a systemd service file exists."""
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# Paths where service files can be stored
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"""
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Check if a systemd service file of a given type exists for a service.
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"""
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path = "/etc/systemd/system/"
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service_file_name = service_name + "." + service_type
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service_file_name = f"{service_name}.{service_type}"
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full_path = os.path.join(path, service_file_name)
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print(f"Checking {full_path}") # Added debug output
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if os.path.isfile(full_path):
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return True
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else:
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print(f"File not found.") # Debug output if file is not found
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# Debug output for checking the service file existence
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print(f"Checking {full_path}")
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return os.path.isfile(full_path)
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def check_service_active(service_name):
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"""Check if a service is active or activating."""
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"""
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Check if a systemd service is currently active or activating.
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"""
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result = subprocess.run(['systemctl', 'is-active', service_name], stdout=subprocess.PIPE)
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service_status = result.stdout.decode('utf-8').strip()
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return_value=service_status in ['active', 'activating']
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if return_value:
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print(f"Service {service_name} is active.");
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else:
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print(f"Service {service_name} is not active.");
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return return_value
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is_active = service_status in ['active', 'activating']
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print(f"Service {service_name} is {'active' if is_active else 'not active'}.")
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return is_active
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def check_any_service_active(services):
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"""Check if any service in the list is active or activating."""
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for service_name in services:
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if check_service_active(service_name):
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return True
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return False
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"""
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Check if any service in a given list is active or activating.
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"""
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return any(check_service_active(service) for service in services)
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def stop_timer(service):
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# Stop and disable the corresponding timer, if it exists
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if service_file_exists(service,"timer"):
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timer_name = service + ".timer"
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"""
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Stop and disable a systemd timer for a service if it exists.
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"""
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if service_file_exists(service, "timer"):
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timer_name = f"{service}.timer"
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subprocess.run(['systemctl', 'stop', timer_name])
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subprocess.run(['systemctl', 'disable', timer_name])
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print(f"{timer_name} stopped and disabled.")
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else:
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print(f"No timer to stop.")
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print("No timer to stop for service.")
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def filter_services(services, ignored_services):
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"""
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Removes all services from the 'services' list that are contained in 'ignored_services'.
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:param services: List of services.
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:param ignored_services: List of services to be ignored.
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:return: Filtered list of services.
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Filter out services that are in the ignored_services list from services list.
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"""
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return [service for service in services if service not in ignored_services]
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def stop_all_timers(services):
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"""
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Stop and disable timers for all services in a given list.
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"""
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for service in services:
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stop_timer(service)
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def wait_for_all_services_to_stop(filtered_services,max_attempts,attempt,break_time_sec):
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def wait_for_all_services_to_stop(filtered_services, max_attempts, attempt, break_time_sec):
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"""
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Wait until all services in the list have stopped, with a maximum number of attempts.
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"""
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for service in filtered_services:
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while check_service_active(service):
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attempt += 1
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if attempt > max_attempts:
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raise Exception(f"Error: Maximum attempts ({max_attempts}) reached. Exit.")
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raise Exception(f"Maximum attempts ({max_attempts}) reached. Exiting.")
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print(f"{datetime.now().isoformat()}#{attempt}/{max_attempts}: Waiting for {break_time_sec} seconds for {service} to stop...")
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time.sleep(break_time_sec)
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return attempt
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def freeze(filtered_services,timeout_sec):
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break_time_sec=5
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attempt=0
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max_attempts=timeout_sec/break_time_sec
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def freeze(filtered_services, timeout_sec):
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"""
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Freeze services by stopping them and their timers, waiting up to a timeout.
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"""
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break_time_sec = 5
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attempt = 0
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max_attempts = timeout_sec / break_time_sec
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# This guaranties that no service will be started in the between time
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while check_any_service_active(filtered_services):
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stop_all_timers(filtered_services)
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attempt=wait_for_all_services_to_stop(filtered_services,max_attempts,attempt,break_time_sec)
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print("\nAll required services have stopped.")
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attempt = wait_for_all_services_to_stop(filtered_services, max_attempts, attempt, break_time_sec)
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print("All required services have stopped.")
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def defrost(filtered_services):
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"""
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Defrost services by starting and enabling their timers.
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"""
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for service in filtered_services:
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print(f"\nUnfreezing: {service}")
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if service_file_exists(service,"timer"):
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# Start and enable the corresponding timer, if it exists
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timer_name = service + ".timer"
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print(f"Unfreezing: {service}")
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if service_file_exists(service, "timer"):
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timer_name = f"{service}.timer"
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subprocess.run(['systemctl', 'start', timer_name])
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subprocess.run(['systemctl', 'enable', timer_name])
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print(f"{timer_name} started and enabled.")
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else:
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print(f"No timer to activate.")
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print("\nAll required services are started.")
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print("No timer to activate for service.")
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print("All required services are started.")
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def main(services, ignored_services, action, timeout_sec):
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filtered_services=filter_services(services, ignored_services)
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print(f"Services to handle : {services}")
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print(f"Services to ignore : {ignored_services}")
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print(f"Services filtered : {filtered_services}")
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"""
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Main function to process the command-line arguments and perform actions.
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"""
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filtered_services = filter_services(services, ignored_services)
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print(f"Services to handle: {services}")
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print(f"Services to ignore: {ignored_services}")
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print(f"Services filtered: {filtered_services}")
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if action == 'freeze':
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print("Freezing services.");
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print("Freezing services.")
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freeze(filtered_services, timeout_sec)
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elif action == 'defrost':
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print("Unfreezing services.");
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print("Unfreezing services.")
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defrost(filtered_services)
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print('\nOverview:')
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print("Overview:")
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subprocess.run(['systemctl', 'list-timers'])
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(description='freezes and defrost systemctl services and timers')
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parser = argparse.ArgumentParser(description='Freezes and defrosts systemd services and timers.')
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parser.add_argument('action', choices=['freeze', 'defrost'], help='Action to perform: freeze or defrost services.')
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parser.add_argument('services', nargs='+', help='List of services to apply the action to')
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parser.add_argument('--ignore', nargs='*', help='List of services to ignore in the action', default=[])
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parser.add_argument('--timeout', help='Timeout for freezing services (e.g., 1h, 30min, 45s)', default='1h')
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parser.add_argument('services', nargs='+', help='List of services to apply the action to.')
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parser.add_argument('--ignore', nargs='*', help='List of services to ignore in the action.', default=[])
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parser.add_argument('--timeout', help='Timeout for freezing services (e.g., 1h, 30min, 45s).', default='1h')
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args = parser.parse_args()
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services = args.services
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ignored_services = args.ignore if args.ignore else []
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