mirror of
https://github.com/valitydev/salt.git
synced 2024-11-07 17:09:03 +00:00
114 lines
3.3 KiB
ReStructuredText
114 lines
3.3 KiB
ReStructuredText
.. _client-apis:
|
|
.. _python-api:
|
|
|
|
=================
|
|
Python client API
|
|
=================
|
|
|
|
Salt provides several entry points for interfacing with Python applications.
|
|
These entry points are often referred to as ``*Client()`` APIs. Each client
|
|
accesses different parts of Salt, either from the master or from a minion. Each
|
|
client is detailed below.
|
|
|
|
.. seealso:: There are many ways to access Salt programmatically.
|
|
|
|
Salt can be used from CLI scripts as well as via a REST interface.
|
|
|
|
See Salt's :ref:`outputter system <all-salt.output>` to retrieve structured
|
|
data from Salt as JSON, or as shell-friendly text, or many other formats.
|
|
|
|
See the :py:func:`state.event <salt.runners.state.event>` runner to utilize
|
|
Salt's event bus from shell scripts.
|
|
|
|
Salt's `netapi module`_ provides access to Salt externally via a REST interface.
|
|
Review the `netapi module`_ documentation for more information.
|
|
|
|
.. _`netapi module`: http://docs.saltstack.com/en/latest/topics/netapi/index.html
|
|
|
|
Salt's ``opts`` dictionary
|
|
==========================
|
|
|
|
Some clients require access to Salt's ``opts`` dictionary. (The dictionary
|
|
representation of the :ref:`master <configuration-salt-master>` or
|
|
:ref:`minion <configuration-salt-minion>` config files.)
|
|
|
|
A common pattern for fetching the ``opts`` dictionary is to defer to
|
|
environment variables if they exist or otherwise fetch the config from the
|
|
default location.
|
|
|
|
.. autofunction:: salt.config.client_config
|
|
|
|
.. autofunction:: salt.config.minion_config
|
|
|
|
Salt's Loader Interface
|
|
=======================
|
|
|
|
Modules in the Salt ecosystem are loaded into memory using a custom loader
|
|
system. This allows modules to have conditional requirements (OS, OS version,
|
|
installed libraries, etc) and allows Salt to inject special variables
|
|
(``__salt__``, ``__opts__``, etc).
|
|
|
|
Most modules can be manually loaded. This is often useful in third-party Python
|
|
apps or when writing tests. However some modules require and expect a full,
|
|
running Salt system underneath. Notably modules that facilitate
|
|
master-to-minion communication such as the :py:mod:`~salt.modules.mine`,
|
|
:py:mod:`~salt.modules.publish`, and :py:mod:`~salt.modules.peer` execution
|
|
modules. The error ``KeyError: 'master_uri'`` is a likely indicator for this
|
|
situation. In those instances use the :py:class:`~salt.client.Caller` class
|
|
to execute those modules instead.
|
|
|
|
Each module type has a corresponding loader function.
|
|
|
|
.. autofunction:: salt.loader.minion_mods
|
|
|
|
.. autofunction:: salt.loader.raw_mod
|
|
|
|
.. autofunction:: salt.loader.states
|
|
|
|
.. autofunction:: salt.loader.grains
|
|
|
|
.. autofunction:: salt.loader.grain_funcs
|
|
|
|
Salt's Client Interfaces
|
|
========================
|
|
|
|
.. _client-interfaces:
|
|
.. _local-client:
|
|
|
|
LocalClient
|
|
-----------
|
|
|
|
.. autoclass:: salt.client.LocalClient
|
|
:members: cmd, run_job, cmd_async, cmd_subset, cmd_batch, cmd_iter,
|
|
cmd_iter_no_block, get_cli_returns, get_event_iter_returns
|
|
|
|
Salt Caller
|
|
-----------
|
|
|
|
.. autoclass:: salt.client.Caller
|
|
:members: cmd
|
|
|
|
RunnerClient
|
|
------------
|
|
|
|
.. autoclass:: salt.runner.RunnerClient
|
|
:members: cmd, async, cmd_sync, cmd_async
|
|
|
|
WheelClient
|
|
-----------
|
|
|
|
.. autoclass:: salt.wheel.WheelClient
|
|
:members: cmd, async, cmd_sync, cmd_async
|
|
|
|
CloudClient
|
|
-----------
|
|
|
|
.. autoclass:: salt.cloud.CloudClient
|
|
:members:
|
|
|
|
SSHClient
|
|
---------
|
|
|
|
.. autoclass:: salt.client.ssh.client.SSHClient
|
|
:members: cmd, cmd_iter
|