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DevOps & Automation · Intermediate

Check Mode

Ansible's dry-run mode (--check) that reports what would change without making changes, often combined with --diff.

Definition

Modules that support check mode predict changes; others are skipped. It is commonly used to validate network changes before execution.

Example

ansible-playbook site.yml --check --diff

Exam tip

--check is Ansible's equivalent of terraform plan.

Related terms