Kevin Veen-Birkenbach
e09f561f0b
- Replace legacy utils/run_once.yml with the new helpers utils/once_flag.yml and utils/once_finalize.yml - Introduce utils/compose_up.yml to ensure docker-compose stacks are up and to flush handlers safely without coupling to run-once flags - Migrate all affected roles (desk-*, dev-*, sys-ctl-*, sys-svc-*, web-app-*, web-svc-*, util-*) to the new run-once helpers - Rework sys-svc-msmtp to auto-load Mailu once per deploy, check reachability, and reuse the running stack instead of requiring multiple playbook passes - Adjust web-app-mailu to integrate cert deployment, handler flushing, and run-once handling so Mailu is fully initialized in a single deploy - Improve Matomo, CDN, logout and CSP/health-check related roles to cooperate with the new compose_up / once_* pattern - Simplify alarm/backup/timer/service orchestration (sys-ctl-alm-*, sys-bkp-provider, sys-timer-cln-bkps, etc.) by moving run-once logic into dedicated 01_core.yml files - Update integration tests so utils/once_flag.yml and utils/once_finalize.yml are recognised as valid run-once providers, keeping the global run_once_* guarantees consistent - Align frontend injection and service dependencies so Mastodon- and Mailu-related services can be brought up coherently within a single deployment cycle rather than several iterations
Docker Auto Restart
Description
This role automates the restart process for Docker Compose instances within a specified directory. It deploys a Python script that checks for the presence of docker-compose.yml files and restarts the associated services—using a hard restart for certain directories if needed.
Overview
Optimized for containerized environments, this role:
- Sets up the necessary directories and scripts for restarting Docker Compose instances.
- Configures a systemd service (and optionally a timer) to execute the restart script.
- Handles both standard restarts and hard restarts for specific containers (e.g., for Mailu).
Purpose
The primary purpose of this role is to ensure that all Docker Compose services are restarted consistently, resolving issues that may arise from partial restarts. This helps maintain overall service stability and minimizes downtime.
Features
- Automated Detection: Scans a specified parent directory for docker-compose.yml files.
- Service Restart: Executes a Python script to restart Docker services via docker-compose.
- Conditional Hard Restart: Applies a hard restart procedure for specific directories (e.g., Mailu).
- Systemd Integration: Configures a systemd service and optionally a timer for scheduled restarts.
Context
This role was implemented to address the classic issue: "Have you tried turning it off and on again?". The problem initially arose with the fetchmail container in Mailu, which fails if only some containers, and not the full docker-compose composition, are restarted.
Credits 📝
This role was developed with the assistance of ChatGPT, including insights and optimizations from this conversation. Special thanks for providing guidance on error handling, Ansible best practices, and Python integration.