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- 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 Container Health Check
Description
This role monitors the health status of Docker containers on the system. It detects containers that are either unhealthy or have exited with a non-zero code, and triggers alerts if issues are found.
Overview
The role installs a health check script along with a systemd service and timer to run these checks at scheduled intervals.
If unhealthy or failed containers are detected, the configured failure notifier (via sys-ctl-alm-compose) is triggered.
Purpose
The primary purpose of this role is to ensure that Docker-based services remain operational. By automatically monitoring container health, it enables administrators to react quickly to failures, reducing downtime and preventing unnoticed service degradation.
Features
- Automated Health Checks: Detects containers in
unhealthystate or exited with non-zero exit codes. - Systemd Integration: Installs a one-shot service and timer to run health checks on a schedule.
- Alerting Support: Works with the
sys-ctl-alm-composerole for failure notifications. - Configurable Script Location: Controlled via the
PATH_ADMINISTRATOR_SCRIPTSvariable.