84 lines
3.2 KiB
ReStructuredText
84 lines
3.2 KiB
ReStructuredText
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.. contents:: Topics
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Connection Plugins
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------------------
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These plugins are in charge of enabling Ansible to connect to the target hosts so it can execute tasks on them.
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Ansible ships we many connection plugins but only one can be used per host at a time.
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By default, the configuration uses a 'smart' value, which means Ansible will decide to use the 'ssh' or 'paramiko' (python version of ssh client)
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depending on what it detects on your system capabilities, it normally chooses 'ssh' if OpenSSH supports ControlPersist.
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The basics of these connection types are covered in the :doc:`../intro_getting_started` section.
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.. contents:: Topics
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.. _ssh_plugins:
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The ssh Plugins
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++++++++++++++++
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Since ssh is the default protocol used in system administration it is also the most used and prevalent in Ansible,
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so much so that ssh options are included in the command line tools unlike other plugins, see :doc:`../ansible-playbook` for more details.
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.. _using_connection_plugins:
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Using Connection Plugins
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++++++++++++++++++++++++
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The transport can be changed via :doc:`configuration <../config>`, in the command line (``-c``, ``--connection``), as a keyword (:ref:`connection`)
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in your play or by setting the a connection variable (:ref:`ansible_connection`), most often, in your inventory.
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For example, for windows machines you might want o use the :doc:`winrm <connection/winrm>` plugin instead.
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Most connection plugins can operate with a minimum configuration, by defaul they use the :ref:`inventory_hostname` and defaults to find the target host.
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Each plugin documents it's configuration options and how to set, the following are 'connection variables' common to most:
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:ref:ansible_host
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The name of the host to connect to, if different from the :ref:`inventory_hostname`.
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:ref:ansible_port
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The ssh port number, for :doc:`ssh <connection/ssh>` and :doc:`paramiko <connection/paramiko>` it defaults to 22.
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:ref:ansible_user
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The default user name to log in as, most plugins defaul to the 'current user running Ansible'
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Each plugin might also have a specific version that overrides the general one. i.e :ref:`ansible_ssh_host` for the :doc:`ssh <connection/ssh>` plugin.
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Enabling Connection Plugins
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+++++++++++++++++++++++++++
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Should you want to extend Ansible to support other transports (SNMP, Message bus, etc) it's as simple as dropping a custom plugin
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into the ``connection_plugins`` directory.
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Plugin List
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+++++++++++
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You can use ``ansible-doc -t connection -l`` to see the list of available plugins,
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use ``ansible-doc -t connection <plugin name>`` to examine detailed documentation and examples.
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.. toctree:: :maxdepth: 1
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:glob:
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connection/*
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.. seealso::
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:doc:`../playbooks`
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An introduction to playbooks
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:doc:`callback`
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Ansible callback plugins
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:doc:`../playbooks_filters`
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Jinja2 filter plugins
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:doc:`../playbooks_tests`
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Jinja2 test plugins
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:doc:`../playbooks_lookups`
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Jinja2 lookup plugins
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:doc:`vars`
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Ansible vars plugins
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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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