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Update playbooks_variables.rst

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There is some kind of duplicated content with http://docs.ansible.com/faq.html#how-do-i-loop-over-a-list-of-hosts-in-a-group-inside-of-a-template and this gotcha isn't listed here.
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Juri Glass 2014-10-23 16:42:10 +02:00
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@ -842,6 +842,7 @@ A frequently used idiom is walking a group to find all IP addresses in that grou
{% endfor %}
An example of this could include pointing a frontend proxy server to all of the app servers, setting up the correct firewall rules between servers, etc.
You need to make sure that the facts of those hosts have been populated before though, for example by running a play against them.
Additionally, *inventory_hostname* is the name of the hostname as configured in Ansible's inventory host file. This can
be useful for when you don't want to rely on the discovered hostname `ansible_hostname` or for other mysterious