yaml Kwalify schema for hiera files

[Corey Osman]

Hi,

Has anybody created a yaml Kwalify schema for hiera files. I would like to validate my yaml files against an official hiera schema using Kwalify. Since the YAML spec varies greatly a schema is required to validate hiera specific keys.


Corey

[Henrik Lindberg]

On 2015-25-03 20:06, Corey Osman wrote:
> Hi,
>
> Has anybody created a yaml Kwalify schema for hiera files. I would like to validate my yaml files against an official hiera schema using Kwalify. Since the YAML spec varies greatly a schema is required to validate hiera specific keys.
>

Exactly which "hiera files" do you mean?

The format is very much up to the implementation of a particular backend.

I also wonder if what you are trying to achieve is possible to check
with Kwalify - I expect it to load the yaml using a yaml implementation,
and thus any lexical problems in your yaml files have already occured
due to differences in yaml implementations.

The result could still be valid - only not what you intended.

This lexical problem is different than validating that the structural
content follows a particular yaml schema.

- henrik

>
> Corey
>


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[Corey Osman]

So I have used the built in JSON backend which makes it easy to validate a json file using any number of tools.  

However, some of my clients prefer the default hiera yaml backend which there is no tool to validate basic parameter values being dumped into a hiera file, and YAML.load_file is essentially useless as a validator.

For reference:

https://github.com/gds-operations/puppet-syntax/issues/39

Things I want to check are that the user supplied the necessary syntax to create a list, hash or other data types in yaml much like the JSON equivalent.  The difference being that JSON is a subset of YAML and by default comes with its own validator (afaik).   Since the YAML parser is so generic I figured that puppetlabs might have already created a Kwalify schema to validate hiera files that use the yaml backend.

I have come across a few situations where if the user fat fingers characters into the hiera files, all hell breaks loose because the YAML parser really doesn't care whats in the file and keys are never found.

Example:

---
{}
fsdafsd
one::two::three: some_value

hiera('one::two::three') will never return some_value. 

Corey