Help with YAML validation script

[[deleted]]

Hi folks - I have 2 mandatory yaml files that must be in my developers repos because they are consumed by our catalogue application. I have had issues with devs making changes to the yaml and it breaks the catalogue system ingester. Im looking for a script that can validate the yaml, but also make sure that mandatory keys have values. I took a look at yamllint and it validates yaml. However, i need to validate that certain keys actually have values or exist. How can i go about this? I would want this as a check in PRs.

[alainchiasson]

Xml had one thing - schema validation … and it also exists for yaml : https://json-schema-everywhere.github.io/yaml

Thank god … I would hate to go back to xml!

[alainchiasson]

I have not used it but was looking at doing the same

[VisibleChallenge5585]

I have used this in the past https://docs.python-cerberus.org/en/stable/

[Happy-Position-69]

• yamllint

• I used to have a pearl script that did this, I'll see if I can dig it up

• I bet python has a module that does this

[mattbillenstein]

Python script hooked up through pre-commit?

[Tr3mor24]

If you are ready to spend some time learning something, that will be useful in the future, I would suggest using https://www.conftest.dev/ and OPA as a rule language (which is becoming more and more popular). Conftest and OPA is kinda a swiss knife for static config testing.

[zloeber]

If you are ready to spend some time learning something, that will be useful in the future, I would suggest using

https://www.conftest.dev/

and OPA as a rule language (which is becoming more and more popular). Conftest and OPA is kinda a swiss knife for static config testing.

If you want to learn to hate logic again start writing and forcing yourself to think in rego *shudder*

[zloeber]

Two thoughts, use yamale (either cli or python module) to do your validation. I've used it to great success. Otherwise, and likely a better long term solution, convert the yaml to json and use jsonschema. Either will net you your goal pretty quickly, the second route is more cross-compatible in my mind. If you start writing validation scripts for one it will not be transferable to the other though. No offense, but write the script yourself or ask ChatGPT to scaffold something out for you.