I am Stéphane ROBERT, infrastructure engineer at Outscale France, working from Yffiniac in Brittany, France.

I spend my days hardening pipelines and my evenings writing about it. Everything I learn ends up in one of two places: a free tutorial on my blog, or a lab you can actually run from one of the repositories below. Nothing here is a demo that only works on my laptop.

The problem: most hands-on labs grade you on the commands you typed. Real exams — RHCSA, LFCS — grade the state of the machine, after a reboot. That gap is exactly where candidates fail.

dsoxlab is a domain-agnostic CLI framework driving training labs that live in their own repositories. Each catalog declares itself through a root meta.yml and one lab.yaml per lab, so adding a domain means writing a file, not patching the engine.

• Validation proves, it does not trust. Labs are graded on the actual state of the system with pytest-testinfra, including persistence after reboot.
• Three runtimes. A plain shell, an Incus container, or a full KVM/libvirt virtual machine — chosen per lab.
• Progress that sticks. Scores, hint costs and history persisted in a local SQLite database, XDG-compliant.
• Bilingual by design. Every user-facing string ships in English and French (DSOXLAB_LANG=en|fr).

git clone https://github.com/stephrobert/dsoxlab.git && cd dsoxlab
uv tool install --editable .
dsoxlab doctor          # diagnoses (and repairs) the local toolchain

git clone https://github.com/stephrobert/linux-dsoxlab-training.git && cd linux-dsoxlab-training
dsoxlab list-labs       # the active catalog is detected from the repo's meta.yml

Free, in French, and updated far more often than this README. Roughly a hundred articles and a full DevOps course live at blog.stephane-robert.info.

• Une usine logicielle sécurisée sur Incus, pas sur Kubernetes _2026-07-06
• AWX n'a plus de release depuis deux ans : le risque et la solution _2026-07-03
• Chainguard Actions : une excellente initiative pour durcir vos GitHub Actions _2026-07-02
• Incus OS : j'ai monté un cluster sans jamais ouvrir l'interface _2026-07-01
• Strix : le pentester IA open-source à l'épreuve de la souveraineté _2026-06-26

• secure-python-pipeline _Python — Lab : API Python avec pipeline CI/CD securise (supply chain, SLSA, SBOM, cosign)

Self-hosted, runnable, no signup wall.

• linux-dsoxlab-training _{★ 16} — Linux DevSecOps training (RHCSA + LFCS) driven by the dsoxlab CLI
• containers-training _{★ 159} — Formation Conteneurisation Gratuite
• ansible-training _{★ 107} — Une formation Ansible complète
• python-training _{★ 41} — Une formation Python pour les Admin Sys
• github-actions-training _{★ 5} — Hands-on training repository.

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