Validate CD4PE Yaml files

[glennsarti]

Use Case

CD4PE has a Pipelines as code configuration file. It would be nice to have an indepth validator for it.

Docs - https://puppet.com/docs/continuous-delivery/3.x/structuring_cd4pe_yaml.html#structuring_cd4pe_yaml

Describe the Solution You Would Like

Perhaps be a separate validator? cd4pe ?

Or be part of the puppet validator?

Or be part of the yaml validator?

Describe Alternatives You've Considered

None.

Additional Context

Unfortunately this is currently only a Java class. No schema docs for it 😢

Tests for validation (Private repo)

https://github.com/puppetlabs/PipelinesInfra/blob/17f200c3fe95f64dc08defc6a357606c2f52301e/src/test/java/com/puppet/cdpe/pac/PACManagerTest.java

https://github.com/puppetlabs/PipelinesInfra/tree/17f200c3fe95f64dc08defc6a357606c2f52301e/src/test/java/com/puppet/cdpe/pac