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89 lines
2.4 KiB
ReStructuredText
89 lines
2.4 KiB
ReStructuredText
===============================================
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Packaging External Modules for Salt
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===============================================
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External Modules Setuptools Entry-Points Support
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================================================
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The salt loader was enhanced to look for external modules by looking at the
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`salt.loader` entry-point:
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https://pythonhosted.org/setuptools/setuptools.html#dynamic-discovery-of-services-and-plugins
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`pkg_resources` should be installed, which is normally included in setuptools.
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https://pythonhosted.org/setuptools/pkg_resources.html
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The package which has custom engines, minion modules, outputters, etc, should
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require setuptools and should define the following entry points in its setup
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function:
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.. code-block:: python
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from setuptools import setup, find_packages
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setup(name=<NAME>,
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version=<VERSION>,
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description=<DESC>,
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author=<AUTHOR>,
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author_email=<AUTHOR-EMAIL>,
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url=' ... ',
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packages=find_packages(),
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entry_points='''
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[salt.loader]
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engines_dirs = <package>.<loader-module>:engines_dirs
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fileserver_dirs = <package>.<loader-module>:fileserver_dirs
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pillar_dirs = <package>.<loader-module>:pillar_dirs
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returner_dirs = <package>.<loader-module>:returner_dirs
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roster_dirs = <package>.<loader-module>:roster_dirs
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''')
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The above setup script example mentions a loader module. here's an example of
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how `<package>/<loader-module>.py` it should look:
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.. code-block:: python
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# -*- coding: utf-8 -*-
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# Import python libs
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import os
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PKG_DIR = os.path.abspath(os.path.dirname(__file__))
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def engines_dirs():
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'''
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yield one path per parent directory of where engines can be found
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'''
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yield os.path.join(PKG_DIR, 'engines_1')
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yield os.path.join(PKG_DIR, 'engines_2')
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def fileserver_dirs():
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'''
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yield one path per parent directory of where fileserver modules can be found
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'''
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yield os.path.join(PKG_DIR, 'fileserver')
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def pillar_dirs():
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'''
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yield one path per parent directory of where external pillar modules can be found
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'''
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yield os.path.join(PKG_DIR, 'pillar')
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def returner_dirs():
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'''
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yield one path per parent directory of where returner modules can be found
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'''
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yield os.path.join(PKG_DIR, 'returners')
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def roster_dirs():
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'''
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yield one path per parent directory of where roster modules can be found
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'''
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yield os.path.join(PKG_DIR, 'roster')
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