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kevinveenbirkenbachandClaude Opus 5 c55f508e05 feat(readme): draw mandatory and disabled service relations

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>

2026-08-17 18:02:31 +02:00

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Global JavaScript Injector for NGINX

Description

This Ansible role injects a custom JavaScript snippet into all HTML responses served by NGINX. It leverages NGINX’s sub_filter to seamlessly insert your application-specific script just before the closing </head> tag, ensuring that your code runs on every page load, which is useful for global feature flags, analytics, or UI enhancements.

Overview

This role injects a custom JavaScript snippet into Nginx-served HTML responses via sub_filter.

Cosmos

The diagram places Global JavaScript Injector for NGINX 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-front-inj-javascript 💻]
        svc_javascript["javascript"]
    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

One-line Script Injection
Collapses your JavaScript into a single line and injects it via sub_filter for minimal footprint and maximal compatibility.
Easy CSP Integration
Automatically computes and appends a CSP hash entry for your script, so you can lock down Content Security Policy without lifting a finger.
Conditional Activation
Activates only when you enable the javascript feature for a given application, keeping your server blocks clean and performant.
Debug Mode
Supports an MODE_DEBUG flag that appends optional console.log statements for easier troubleshooting in staging or development.

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).

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