1 Prerequisites This skill 0 Unlocked

Skill · Configuration management · Write robust playbooks

Check preconditions and synchronize a playbook's execution

Check a host's state before acting with stat, find and getent, and cleanly stop a playbook whose precondition is missing, with assert and fail.

Start lesson 1The Configuration management domain

• 6 lessons
• ~5 h 15 of reading
• 6 quizzes
• 0 proof lab

The path

Where it comes from, where it leads

What you need to know first, where you stand on this skill, and what it opens next. Your status is computed in your browser, from what you have read and passed.

Before · 1 prerequisite

• Write a readable, idempotent Ansible playbook

Recommended before · 2

• Make Ansible tasks conditional and repeat them with when and loop
• Generate a configuration file through Ansible from a Jinja2 template

This skill, for you

Check preconditions and synchronize a playbook's execution

Computing

It unlocks · nothing yet

No other skill requires it: it is an end-of-path skill.

Lessons

How to learn it

6 lessons, about ~5 h 15, in program order. Each lesson ends with its quiz.

The program

6 lessons · ~5 h 15

Part 1 · Modules stockage et état de la machine (in French) 1 lesson · ~25 min

1. 1Module getent (in French)· 25 min

Part 2 · Modules réseau et diagnostic (in French) 4 lessons · ~4 h 20

1. 2Module stat (in French)· 60 min
2. 3Module find (in French)· 60 min
3. 4Modules assert et fail (in French)· 75 min
4. 5Modules wait_for et pause (in French)· 65 min

Part 3 · Modules complémentaires : commandes brutes et Windows (in French) 1 lesson · ~30 min

1. 6debug, setup, add_host, group_by (in French)· 30 min

Beyond the lessons

Assess, practise, pass the proof

Reading a lesson confirms nothing. A skill is confirmed by a passed quiz, practised in a guided lab, and put to the test by a challenge or a mission; an imported lab result is not verified by the site.

Assess yourself

6 quizzes

At the end of the lessons: passed at 70%, they confirm the skill.

Practice

4 guided labs

• assert and fail modules: defensive validation
• find module: multi-file search
• stat module: inspect files and directories
• wait_for and pause modules: synchronization

Proof

No proof

Neither a challenge nor a mission with a proof yet.

Around it

Who requires it, who teaches it

Required by

• Linux Administrator

Taught by

• Ansible (in French)

Same block · Write robust playbooks

• Make Ansible tasks conditional and repeat them with when and loop
• Handle a failed Ansible task: recover, ignore or stop the play
• Run a raw command through Ansible idempotently and report it correctly
• Generate a configuration file through Ansible from a Jinja2 template

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