Docker Compose Certificate Sync Service

Description

Keeps Docker Compose services updated with fresh Let’s Encrypt certificates via a systemd oneshot service and timer.

Overview

Installs a small script and a systemd unit that copy certificates into your Compose project and trigger an NGINX hot-reload (fallback: restart) to minimize downtime.

Cosmos

The diagram places Docker Compose Certificate Sync Service in the Infinito.Nexus cosmos: the components it deploys (capabilities), the central services it consumes (dependencies), and its outward reach (federation and bridged external networks).

flowchart LR
    subgraph role [sys-ctl-mtn-cert-deploy 💻]
        svc_cert_deploy["cert-deploy"]
    end

Solid 1:1 edges are fixed relationships; dashed 0..1 edges are conditional (enabled only in matching deployments); red 0..0 edges are turned off in this role. Node markers show the role’s deploy modes (💻 host, 🐳 compose, 🐝 swarm); ❌ marks a service that is explicitly turned off, and ⚙️ an Ansible role dependency declared in meta/main.yml.

Features

• Automatic certificate sync into the Compose project

• Mailu-friendly filenames (key.pem, cert.pem)

• NGINX hot-reload if available, otherwise restart

• Runs on a schedule you define

Further Resources

• Wildcard Certificate Setup (SETUP.md)

• Role Documentation

• Issue Tracker

Credits

Implemented by Kevin Veen-Birkenbach. Part of the Infinito.Nexus Project and maintained by Kevin Veen-Birkenbach. Licensed under the Infinito.Nexus Community License (Non-Commercial).