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The cosmos generator linked a consumer to its provider only through an '<role>' in group_names reference or an explicit provides: name. A hard dependency has neither -- pinning the provider on unconditionally is exactly what removes the Jinja reference the generator was reading -- so web-svc-asset's bond to web-svc-file vanished from the diagram the moment it became binding. Match a service key against the provider's own primary key from the registry, in both directions. Services the role turns off drew a solid 1:1 edge, claiming a mandatory relationship for something that carries nothing at deploy time. They now render as a red 0..0 edge; edge merging gained a real precedence so a provider consumed through two keys stays live when only one is off. Named colour, not hex: a '#' opens an entity code in the mermaid lexer and turns the whole diagram into a parse error on GitHub. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
58 lines
3.0 KiB
Markdown
58 lines
3.0 KiB
Markdown
# NGINX Certbot Automation
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## Description
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This role automates the setup of an automatic [Let's Encrypt](https://letsencrypt.org/) certificate renewal system for NGINX using [Certbot](https://certbot.eff.org/). It ensures that SSL/TLS certificates are renewed seamlessly in the background and that NGINX reloads automatically after successful renewals.
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## Overview
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Optimized for Archlinux systems, this role installs the `certbot-NGINX` package, configures a dedicated `systemd` service for certificate renewal, and integrates with a `sys-timer` to schedule periodic renewals. After a renewal, NGINX is reloaded to apply the updated certificates immediately.
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### Key Features
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- **Automatic Renewal:** Schedules unattended certificate renewals using sys-timers.
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- **Seamless NGINX Reload:** Reloads the NGINX service automatically after successful renewals.
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- **Systemd Integration:** Manages renewal operations reliably with `systemd` and `sys-ctl-alm-compose`.
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- **Quiet and Safe Operation:** Uses `--quiet` and `--agree-tos` flags to ensure non-interactive renewals.
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## Cosmos
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The diagram places NGINX Certbot Automation 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).
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```mermaid
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flowchart LR
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subgraph deps [Dependencies]
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dep_sys_ctl_cln_certs["sys-ctl-cln-certs 💻 ⚙️"]
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end
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subgraph role [sys-ctl-mtn-cert-renew 💻]
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svc_cert_renew["cert-renew"]
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end
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dep_sys_ctl_cln_certs -- "1:1" --> svc_cert_renew
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```
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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`.
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## Purpose
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The NGINX Certbot Automation role ensures that Let's Encrypt SSL/TLS certificates stay valid without manual intervention. It enhances the security and reliability of web services by automating certificate lifecycle management.
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## Features
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- **Certbot-NGINX Package Installation:** Installs required certbot plugins for NGINX.
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- **Custom Systemd Service:** Configures a lightweight, dedicated renewal service.
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- **Timer Setup:** Uses sys-timer to run certbot renewals periodically.
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- **Failure Notification:** Integrated with `sys-ctl-alm-compose` for alerting on failures.
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## Learn More
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- [Certbot Official Website](https://certbot.eff.org/)
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- [Let's Encrypt](https://letsencrypt.org/)
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- [Systemd (Wikipedia)](https://en.wikipedia.org/wiki/Systemd)
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- [HTTPS (Wikipedia)](https://en.wikipedia.org/wiki/HTTPS)
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## Credits
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Implemented by **[Kevin Veen-Birkenbach](https://www.veen.world)**.
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Part of the [Infinito.Nexus Project](https://s.infinito.nexus/code) and maintained by [Kevin Veen-Birkenbach](https://www.veen.world).
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Licensed under the [Infinito.Nexus Community License (Non-Commercial)](https://s.infinito.nexus/license).
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