update conditional docs to clarify no mustaches required

This commit is contained in:
nitzmahone 2016-06-27 16:34:14 -07:00
parent 81a49912b0
commit ca183c5bd8

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@ -20,13 +20,15 @@ Sometimes you will want to skip a particular step on a particular host. This co
as simple as not installing a certain package if the operating system is a particular version,
or it could be something like performing some cleanup steps if a filesystem is getting full.
This is easy to do in Ansible, with the `when` clause, which contains a Jinja2 expression (see :doc:`playbooks_variables`).
This is easy to do in Ansible with the `when` clause, which contains a raw Jinja2 expression without double curly braces (see :doc:`playbooks_variables`).
It's actually pretty simple::
tasks:
- name: "shutdown Debian flavored systems"
command: /sbin/shutdown -t now
when: ansible_os_family == "Debian"
# note that Ansible facts and vars like ansible_os_family can be used
# directly in conditionals without double curly braces
You can also use parentheses to group conditions::