From the course: Ansible for Automation Essential Training: Advanced Playbooks, Roles, and Diverse Hosts

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Testing plays with check mode

Testing plays with check mode - Ansible Tutorial

From the course: Ansible for Automation Essential Training: Advanced Playbooks, Roles, and Diverse Hosts

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Testing plays with check mode

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- [Instructor] Ansible has two execution modes. Run and check. Run mode is what is typically used and what I've used thus far. Check mode, however, will simulate automation changes rather than actually making changes. This gives an admin the ability to see what would be changed if a playbook is ran. This is good for checking if a system requires changes or perhaps to ensure that a system hasn't been changed outside of a change window. Check mode can be enabled per task or for an entire play. It's most common by far to run check mode at the play level. Ansible also has the ability to selectively choose tasks to turn check mode on for, and conversely, you can selectively choose tasks to turn check mode off of. Check mode is most commonly run at execution time via command line parameter like so, ansible-playbook dash i inventory, run the tags playbook and dash dash check. It completed successfully, but that's not very exciting. Everything just said OK. I'll edit the Nginx config file…

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