Role julia

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Summary

Installs the Julia programming language, along with juliaup (a version manager for Julia).

Requires

• Linux OS

Description

This role installs juliaup, the latest julia, and makes available a shared Julia packages depot for all users. The steps it takes are:

1. Installs juliaup for the root user only. Note: installing juliaup globally for all users currently (November 2025) does not work because of this issue.
2. juliaup will automatically install the latest stable version of julia.
3. We symlink the installed julia interpreter to /usr/local/bin/julia so all users can use it.
4. We set the JULIA_DEPOT_PATH and JULIA_LOAD_PATH variables for all users such that julia will detect the shared depot. However, the shared depot is read-only. When users install new packages, they will be installed into the user’s own julia depot directory (~/.julia by default).

This role sets the fact fact_julia_dir to the value of the julia_shared_env_path variable, so other roles in a playbook can access it.

Variables

• julia_shared_env_path: String. Path to the shared julia package depot. Default: /usr/local/uu/env/julia

History

2025 Written by Dawa Ometto

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