mirror of https://github.com/kevinveenbirkenbach/computer-playbook.git synced 2025-08-27 05:55:15 +02:00

History

refactor: improve service handling and introduce MODE_ASSERT

- Improved get_service_name filter plugin (clearer suffix handling, consistent var names).
- Added MODE_ASSERT flag to optionally execute validation/assertion tasks.
- Fixed systemd unit handling: consistent use of %I instead of %i, correct escaping of instance names.
- Unified on_failure behavior and alarm composer scripts.
- Cleaned up redundant logging, handlers, and debug config.
- Strengthened sys-service template resolution with assert (only active when MODE_ASSERT).
- Simplified timer and suffix handling with get_service_name filter.
- Hardened sensitive tasks with no_log.
- Added conditional asserts across roles (Keycloak, DNS, Mailu, Discourse, etc.).

These changes improve consistency, safety, and validation across the automation stack.

Conversation: https://chatgpt.com/share/68a4ae28-483c-800f-b2f7-f64c7124c274

2025-08-19 19:02:52 +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 system_service_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 system_service_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.