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computer-playbook/roles/sys-timer
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Kevin Veen-Birkenbach 630fd43382
refactor(services): unify service/timer runtime control and cleanup handling 
- Introduce SYS_SERVICE_ALL_ENABLED and SYS_TIMER_ALL_ENABLED runtime flags
- Add SYS_SERVICE_DEFAULT_STATE for consistent default handling
- Ensure all on-failure service names use lowercase software_name
- Load sys-svc-cln-anon-volumes role during Docker cleanup
- Allow forced service refresh when SYS_SERVICE_ALL_ENABLED is true
- Replace ACTIVATE_ALL_TIMERS with SYS_TIMER_ALL_ENABLED
- Use SYS_SERVICE_DEFAULT_STATE in sys-systemctl vars
- Remove redundant MIG build job fail check

Related to service/timer process control refactoring.
2025-08-19 01:27:37 +02:00
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meta
THE HUGE REFACTORING CALENDER WEEK 33; Optimized Matrix and during this updated variables, and implemented better reset and cleanup mode handling, also solved some initial setup bugs
2025-08-15 15:15:48 +02:00
tasks
refactor(services): unify service/timer runtime control and cleanup handling
2025-08-19 01:27:37 +02:00
templates
Refactor systemctl services and timers
2025-08-18 21:22:16 +02:00
vars
Refactor systemctl services and timers
2025-08-18 21:22:16 +02:00
README.md
Refactor systemctl services and timers
2025-08-18 21:22:16 +02:00

README.md

Systemd Timer

Description

This role configures a systemd timer to periodically start a corresponding service. It uses a Jinja2 template to create a timer unit file that specifies the scheduling parameters (such as OnCalendar and RandomizedDelaySec) and then restarts the timer service accordingly.

Overview

Optimized for automated task scheduling in a systemd environment, this role:

  • Generates a timer unit file for a given service (using the systemctl_timer_service variable).
  • Reloads and restarts the timer using systemd to ensure that changes take effect.
  • Supports dynamic configuration of scheduling parameters via variables like systemctl_on_calendar and RANDOMIZED_DELAY_SEC.

Purpose

The primary purpose of this role is to provide a reusable mechanism for scheduling recurring tasks on a system. By creating and managing a systemd timer unit, the role ensures that specified services are automatically started at defined intervals, enhancing system automation and reliability.

Features

  • Dynamic Timer Configuration: Uses a Jinja2 template to create a timer unit file based on provided variables.
  • Automated Service Management: Automatically reloads the systemd daemon and restarts the timer when changes are detected.
  • Flexible Scheduling: Supports configuration of parameters such as OnCalendar and RandomizedDelaySec for precise control over task timing.
  • Persistent Timers: Optionally enables persistent timer behavior to ensure missed activations are handled.