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Merge pull request #6505 from quiver/fix-typo-faq

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Fix docs for faq
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Michael DeHaan 2014-03-15 12:05:43 -05:00
commit 28dc88ac23
1 changed files with 4 additions and 4 deletions
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docsite/rst/faq.rst
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@ -140,16 +140,16 @@ Then you can use the facts inside your template, like this::
.. _programatic_access_to_a_variable:
How do I access a variable name programatically?
++++++++++++++++++++++++++++++++++++++++++++++++
How do I access a variable name programmatically?
+++++++++++++++++++++++++++++++++++++++++++++++++
An example may come up where we need to get the ipv4 address of an arbitrary interface, where the interface to be used may be supplied
via a role parameter or other input. Variable names can be built by adding strings together, like so::
{{ hostvars[inventory_hostname]['ansible_' + which_interface]['ipv4']['address'] }}
The trick about going through hostvars is neccessary because it's a dictionary of the entire namespace of variables. 'inventory_hostname'
is a magic variable that indiciates the current host you are looping over in the host loop.
The trick about going through hostvars is necessary because it's a dictionary of the entire namespace of variables. 'inventory_hostname'
is a magic variable that indicates the current host you are looping over in the host loop.
.. _first_host_in_a_group: