ansible/docs/docsite/rst/plugins/connection.rst
Toshio Kuratomi 80e7e1a17c
Due to the takeover of freenode we're moving to a different irc network. (#74775)
* Due to the takeover of freenode we're moving to a different irc network.

* Our channels updated to point at the same channel name on libera.chat
* Some links went to webchat.freenode.net.  At this time, libera.chat
  doesn't point you to an official webchat client so I changed these to
  https://libera.chat. (kiwi irc does work with libera.chat so that
  could be another option).
* In general, I used the name irc.libera.net for link names and
  https://libera.chat for link targets.  This is because the irc service
  is hosted on irc.libera.chat but the project web server is hosted on
  libera.chat.  (This appears to also be true for freenode but we were
  using http://irc.freenode.net which doesn't seem to work.  Oops).
* Removed http://irc.freenode.net from the linkcheck exceptions.
  linkcheck was actually correct to flag that as invalid (should have
  been http://frenode.net instead).

* Looks like hte important people in #yaml are now in libera.chat

* Link to where contributors should get help

Add a link target and then link to where contributors should get support
for developing groups of modules.

* Update docs/docsite/rst/dev_guide/developing_modules_in_groups.rst

Co-authored-by: Felix Fontein <felix@fontein.de>

Co-authored-by: John R Barker <john@johnrbarker.com>
Co-authored-by: Felix Fontein <felix@fontein.de>
2021-06-01 08:48:09 +01:00

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.. _connection_plugins:
Connection Plugins
==================
.. contents::
:local:
:depth: 2
Connection plugins allow Ansible to connect to the target hosts so it can execute tasks on them. Ansible ships with many connection plugins, but only one can be used per host at a time.
By default, Ansible ships with several plugins. The most commonly used are the :ref:`paramiko SSH<paramiko_ssh_connection>`, native ssh (just called :ref:`ssh<ssh_connection>`), and :ref:`local<local_connection>` connection types. All of these can be used in playbooks and with :command:`/usr/bin/ansible` to decide how you want to talk to remote machines.
The basics of these connection types are covered in the :ref:`getting started<intro_getting_started>` section.
.. _ssh_plugins:
``ssh`` plugins
---------------
Because ssh is the default protocol used in system administration and the protocol most used in Ansible, ssh options are included in the command line tools. See :ref:`ansible-playbook` for more details.
.. _enabling_connection:
Adding connection plugins
-------------------------
You can extend Ansible to support other transports (such as SNMP or message bus) by dropping a custom plugin
into the ``connection_plugins`` directory.
.. _using_connection:
Using connection plugins
------------------------
You can set the connection plugin globally via :ref:`configuration<ansible_configuration_settings>`, at the command line (``-c``, ``--connection``), as a :ref:`keyword <playbook_keywords>` in your play, or by setting a :ref:`variable<behavioral_parameters>`, most often in your inventory.
For example, for Windows machines you might want to set the :ref:`winrm <winrm_connection>` plugin as an inventory variable.
Most connection plugins can operate with minimal configuration. By default they use the :ref:`inventory hostname<inventory_hostnames_lookup>` and defaults to find the target host.
Plugins are self-documenting. Each plugin should document its configuration options. The following are connection variables common to most connection plugins:
:ref:`ansible_host<magic_variables_and_hostvars>`
The name of the host to connect to, if different from the :ref:`inventory <intro_inventory>` hostname.
:ref:`ansible_port<faq_setting_users_and_ports>`
The ssh port number, for :ref:`ssh <ssh_connection>` and :ref:`paramiko_ssh <paramiko_ssh_connection>` it defaults to 22.
:ref:`ansible_user<faq_setting_users_and_ports>`
The default user name to use for log in. Most plugins default to the 'current user running Ansible'.
Each plugin might also have a specific version of a variable that overrides the general version. For example, ``ansible_ssh_host`` for the :ref:`ssh <ssh_connection>` plugin.
.. _connection_plugin_list:
Plugin List
-----------
You can use ``ansible-doc -t connection -l`` to see the list of available plugins.
Use ``ansible-doc -t connection <plugin name>`` to see detailed documentation and examples.
.. seealso::
:ref:`Working with Playbooks<working_with_playbooks>`
An introduction to playbooks
:ref:`callback_plugins`
Ansible callback plugins
:ref:`Filters<playbooks_filters>`
Jinja2 filter plugins
:ref:`Tests<playbooks_tests>`
Jinja2 test plugins
:ref:`Lookups<playbooks_lookups>`
Jinja2 lookup plugins
:ref:`vars_plugins`
Ansible vars plugins
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