Implement additional crossplane resource health checks

[jan-mrm]

Summary

Add additional custom resource health checks for crossplane resources such as:

• pkg.crossplane.io/
  • Configuration
  • ConfigurationRevision
  • ProviderRevision
  • Function
• apiextensions.crossplane.io/
  • CompositeResourceDefinition
  • Composition
  • CompositionRevision

Motivation

Currently only pkg.crossplane.io/Provider is implemented within the ArgoCD resource_customizations

I feel like resource health checks are very helpful and I'd like expand them to the above resources / or a subset of them / or also others depending on feedback.

Proposal

I guess this seems somewhat straight forward by looking into the resources and adding checks with tests for each resource as described in the argo docs

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Are there any guidelines about when its ok to add a check here into the ArgoCD project repo?
Are there any concerns about the number of checks to be considered?

[crenshaw-dev]

Are there any guidelines about when its ok to add a check here into the ArgoCD project repo?

Not really. I'd say if it's a publicly-available CRD, it's definitely up for acceptance. Crossplane health checks would definitely be welcomed.

Are there any concerns about the number of checks to be considered?

Nope! The more the merrier.

[jan-mrm]

Cool, then I will see what I can do and start with some resources