kevinveenbirkenbach/computer-playbook
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computer-playbook/roles/cleanup-certs/README.md

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Certbot Reaper

Description

This Ansible role automates the detection, revocation and deletion of unused Let's Encrypt certificates. It leverages the certreap tool to identify certificates no longer referenced by any active NGINX configuration and removes them automatically.

Overview

  • Installs the certreap cleanup tool using the pkgmgr-install role
  • Deploys and configures a cleanup-certs.cymais.service systemd unit
  • (Optionally) Sets up a recurring cleanup via a systemd timer using the systemd-timer role
  • Integrates with systemd-notifier to send failure notifications
  • Ensures idempotent execution with a run_once_cleanup_certs flag

Features

  • Certificate Cleanup Tool Installation
    Uses pkgmgr-install to install the certreap binary.

  • Systemd Service Configuration
    Deploys cleanup-certs.cymais.service and reloads/restarts it on changes.

  • Systemd Timer Scheduling
    Optionally wires in a timer via the systemd-timer role, controlled by the on_calendar_cleanup_certs variable.

  • Smart Execution Logic
    Prevents multiple runs in one play by setting a run_once_cleanup_certs fact.

  • Failure Notification
    Triggers systemd-notifier.cymais@cleanup-certs.cymais.service on failure.

Further Resources