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Ansible

Ansible pushes over SSH: inventory, modules, playbooks, then roles and Jinja templates. This course covers facts and precedence, handlers, Vault, dynamic inventory, and running check mode in CI. There is no agent, so the control node is the privileged box — it often has become/root on every host. Vault encrypts files in Git; it does not mint short-lived credentials.

Beginner3 sections · 12 lessons · ~6h total · 14-question self-test

01

Ansible fundamentals

4 lessons

01What Ansible is & the push modelAgentless automation over SSH.12 min 02Install, inventory & ad-hoc commandsHosts, groups, and one-off tasks.12 min 03Modules & idempotencyThe unit of work that runs safely twice.12 min 04Your first playbookPlays, tasks, and YAML structure.12 min

02

Variables, templates & roles

4 lessons

01Variables, facts & precedenceWhere values come from and who wins.14 min 02Templates & Jinja2Generate config files from data.12 min 03Roles & reusePackage automation into shareable units.12 min 04Handlers, loops & conditionalsReact to change; repeat; branch.12 min

03

Vault, hardening & delivery

4 lessons

01Ansible Vault & secretsEncrypt secrets in your repo.14 min 02Dynamic inventory & delegationInventory from the cloud; run elsewhere.12 min 03Hardening playbooks & the controllerbecome, SSH, and control-node risk.14 min 04Ansible in CI/CDLint, check mode, and safe automation.12 min

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Final exam

Test yourself on everything

14 questions drawn from all 3 sections — every answer explained as you pick.

Start final exam