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41 lines
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41 lines
1.3 KiB
ReStructuredText
Strategies
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===========
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In 2.0 we added a new way to control play execution, ``strategy``, by default plays will
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still run as they used to, with what we call the ``linear`` strategy. All hosts will run each
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task before any host starts the next task, using the number of forks (default 5) to parallelize.
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The ``serial`` directive can 'batch' this behaviour to a subset of the hosts, which then run to
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completion of the play before the next 'batch' starts.
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A second ``strategy`` ships with ansible ``free``, which allows each host to run until the end of
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the play as fast as it can.::
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- hosts: all
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strategy: free
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tasks:
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...
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.. _strategy_plugins:
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Strategy Plugins
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`````````````````
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The strategies are implemented via a new type of plugin, this means that in the future new
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execution types can be added, either locally by users or to Ansible itself by
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a code contribution.
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One example is ``debug`` strategy. See :doc:`playbooks_debugger` for details.
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.. seealso::
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:doc:`playbooks`
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An introduction to playbooks
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:doc:`playbooks_roles`
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Playbook organization by roles
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`User Mailing List <http://groups.google.com/group/ansible-devel>`_
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Have a question? Stop by the google group!
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`irc.freenode.net <http://irc.freenode.net>`_
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#ansible IRC chat channel
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