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more 0.8 documenting
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@ -254,6 +254,18 @@ there will be accessible to future tasks::
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action: site_facts
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action: site_facts
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- action: command echo ${my_custom_fact_can_be_used_now}
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- action: command echo ${my_custom_fact_can_be_used_now}
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In Ansible 0.8, a few shortcuts are available for testing whether a variable is defined or not::
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tasks:
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- action: command echo hi
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only_if: is_set($some_variable)
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There is a matching 'is_unset' that works the same way. Do not quote the variables inside the function.
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While only_if is a pretty good option for advanced users, it exposes more guts of the engine than we'd like, and
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we can do better. In 0.9, we will be adding 'when', which will be like a syntactic sugar for only_if and hide
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this level of complexity -- it will numerous built in operators.
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Conditional Imports
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Conditional Imports
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```````````````````
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```````````````````
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@ -329,6 +341,30 @@ The above would be the equivalent of::
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The yum and apt modules use with_items to execute fewer package manager transactions.
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The yum and apt modules use with_items to execute fewer package manager transactions.
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More Loops
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``````````
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.. versionadded: 0.8
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Various 'lookup plugins' allow additional ways to iterate over data. Ansible will have more of these
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over time. In 0.8, the only lookup plugin that comes stock is 'with_fileglob', but you can also write
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your own.
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'with_fileglob' matches all files in a single directory, non-recursively, that match a pattern. It can
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be used like this::
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----
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- hosts: all
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tasks:
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# first ensure our target directory exists
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- file: dest=/etc/fooapp state=directory
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# copy each file over that matches the given pattern
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- copy: src=$item dest=/etc/fooapp/ owner=root mode=600
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with_fileglob: /playbooks/files/fooapp/*
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Selecting Files And Templates Based On Variables
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Selecting Files And Templates Based On Variables
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````````````````````````````````````````````````
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````````````````````````````````````````````````
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