CODEWITHSUNDEEP
ansibleansible-2.xansible-template
Adam Lindberg
Adam Lindberg

Reputation: 16587

How to run validation on Ansible template task when using check mode?

When running Ansible in check mode (--check), it seems the validate command is not run for template tasks:

- name: Nginx is configured
  template:
    src: nginx.conf.j2
    dest: /usr/local/etc/nginx/nginx.conf
    validate: /usr/local/sbin/nginx -t -c %s
  notify: Reload Nginx

Since Ansible is able to tell the difference between the existing destination and new file that is to be installed when running in check mode, it should be able to validate the new file. As it is now, if the template contains an error it will only show up in the real run, not in check mode.

Is there a way to validate template files in check mode?

Upvotes: 2

Views: 3946

Answers (1)

mdaniel
mdaniel

Reputation: 33223

I think the thing you're looking for is check_mode: no which has a very confusing double-negative name but effectively allows a task to opt-out of check-mode suppression.

HOWEVER, in your case you will want to stage that file somewhere first, so you can render the template to disk and have nginx test it, leaving the mv /tmp/nginx.conf /usr/local/etc/nginx/nginx.conf and its notify: guarded by actual check mode.

Upvotes: 2

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