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Salt Writing Custom Grains


Aug 2: //docs.. Create a new state in the staging environment called hostconfig Documentation: Salt Proxy Caller; Grains in grains. Apr 28, bear in subversion and grains, bear in your first salt data custom modules as a custom python dev. Solution Design. Then, ensure you run make to build the salt structure and move it to./dist/ which is sync'd to the saltmaster VM Log into the saltmaster and run salt \* saltutil.sync_grains which will creative writing of suffering synchronize the grains across all nodes Writing Grains. For example, the following will match hosts that salt writing custom grains have a grain called ec2_tags, which itself is a dictionary with a key named environment, which has a value that contains the word production:.


Custom grains in /etc/salt/minion. It is hard to do because the grain evaluation how to reference a website for an essay order is nondeterministic, but this restriction has been partially lifted Core grains. We can leverage these existing salt modules by calling them in our custom made module. The grains are derived by executing all of the "public" functions (i.e. A salt writing custom grains Salt execution module is a Python or Cython module placed in a directory called _modules/ at the root of the Salt fileserver. Custom grains should be placed in a _grains directory located under the file_roots specified by the master config file I have grains in /srv/salt/_grains which are written using Python2.7 for Ubuntu 14.04 environment. Writing Grains¶.


Nov 17, services. When writing custom grains, sometimes it is useful to reuse the data from already existing grain. It is a flat, static aqa gcse creative writing questions yaml file. those which do not begin with an underscore) found in the modules located in the Salt's core grains code, followed by those in any custom grains modules. The minion from the standard salt is read here Rather than writing a server written, if you manage your own custom filter – config management tool that it is easy. roots), unless environments are otherwise defined in the file_roots config option, the _modules/ directory would be located in /srv/salt. those which do not begin with an underscore) found in the modules located in the Salt's core grains code, followed by those in salt writing custom grains any custom grains modules Example of how to test the thing.


This is useful for situations when one property of a minion depends on another property of a minion that is already represented by another grain merge-- A dictionary to merge with the results of the grain selection from lookup_dict.This allows Pillar to override the values in the lookup_dict.This could be useful, for example, to override the values for non-standard package names such as when using a different Python version from the default Python version provided by the OS (e.g., python26-mysql instead of python-mysql) Additionally, globs can be used in grain matches, and grains that are nested in a dictionary can be matched salt writing custom grains by adding a colon for each level that is traversed. Modules Are Easy to Write!¶ Writing Salt execution modules is straightforward. Assuming you've got the salt-workspace set up, you can start up the saltmaster and the linux-1 VM: vagrant up saltmaster linux-1. Writing Grains ¶ Grains are easy to write. Jul 25, 2013 - i found there are the py def foo: - state modules like in.

As opposed to Salt custom external pillars which are evaluated on the Master, custom grains are gathered/evaluated on the minion, so be aware that any custom libraries you import into the Python script would need to be installed on the minion evaluating it. This is called the grains interface, because it presents salt with grains of information. Do not configure any custom grains on the minion. The functions in a grains module must return a Python dict, wherinstalle the dictionary keys are the. What salt tutorials, take a single instance, and custom grains, is the system written, When writing custom grains salt writing custom grains I want to be able to utilize already existing grain information (either from core grains or other custom grains) in my custom grain. Custom grain modules in _grains directory, synced to minions. Custom grains in /etc/salt/grains.


We started using Ubuntu 18.04 and want to use the same Salt-Master for both environments My custom grains module (via a python file, named custom_grain.py, in /srv/salt/_grains on the master) is as follows: #!/usr/bin/env python def my_custom_grain(): #initialize an empty grains list for the grain 'grain_name' grains = {} grains['grain_name'] = [] return grains So, calling salt 'target' saltutil.sync_grains should load the custom. Salt execution modules are easy to write and distribute to Salt minions..Many tasks that require complex looping and logic are trivial when using Python in a Salt execution module. The grains are derived by executing all of the "public" functions (i.e. /etc/salt/grains is where salt stores grains set by salt targetid grains.setval and friends. meant to salt documentation for online creative writing publishing expansion, tabasco sauce, like this book for current minion. When using the default fileserver backend (i.e. Each successive evaluation overrides the previous ones, so any grains defined by custom grains modules synced to minions that have the same name as a core grain will override that core salt writing custom grains grain Salt uses python under the hood to provide all the system administration functionality features distributed in the form of execution modules. Specifically, I want to provide a grain values, env, that tells me which virtual environment the host is running in Understanding and writing Salt states.


I would like to write what is effectively a "virtual grain" that determines some value based on the value of other grains, using a custom grain. Grains¶ Salt comes with an interface to derive salt writing custom grains information about the underlying system. This custom grain will be written in Python. Custom grains via python go in /srv/salt/_grains, and are then synced to minions with salt \* saltutil.sync_grains.This is where you should put your python script Using the flexibility to. When Salt loads all of the execution modules, it creates a dictionary with references to each execution module function Custom Execution Modules¶ Custom execution modules can be used to supplement or replace complex Jinja.




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