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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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Java

Description

Installs OpenJDK 11 (jdk11-openjdk) on Pacman-based systems to provide a Java runtime and development environment.

Overview

This README file is for the Java role, which is part of the infinito. The role is specifically designed to automate the installation of Java on a system, focusing on the OpenJDK 11 version.

Cosmos

The diagram places Java 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 [dev-java 💻]
        svc_java["java"]
    end
    subgraph dependents [Dependents]
        dpt_desk_bluray_player["desk-bluray-player 💻 ⚙️"]
    end
    svc_java -- "1:1" --> dpt_desk_bluray_player

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

Automated provisioning: Configured by Ansible without manual steps.

Contents of the role

The main.yml file within the java role consists of a single, but crucial task:

Install Java: This task uses the community.general.pacman module to install the jdk11-openjdk package. It ensures that Java Development Kit 11 (OpenJDK 11) is present on the system.

Purpose

The primary objective of this role is to provide a straightforward and efficient method for setting up Java, specifically JDK 11, on personal computers or development environments. This setup is essential for developers who work with Java or run applications that require the Java runtime environment.

Prerequisites

Ansible: You need to have Ansible installed on your system to use this role.
Arch Linux-based System: The role uses the pacman package manager, indicating that it is intended for use on systems based on Arch Linux or its derivatives.

Running the role

To run this role:

Clone the computer-role repository to your system.
Navigate to the roles/java directory within the repository.
Execute the role using Ansible. Make sure you have the necessary permissions to install packages on your system.

Customization

This role is focused on installing JDK 11, but it can be easily modified to install different versions of the JDK or additional Java-related tools as per your requirements.

Support and Contribution

For support, feedback, or contributions to the role, please open an issue or submit a pull request in the infinito repository. Contributions that enhance the role or broaden its applicability are greatly appreciated.

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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