Envtest: support loading multiple CRDs from a single file

[nrfox]

Currently envtest supports installing CRDs from yaml at specified paths however it assumes that there is only one CRD per file. Given a single file with multiple CRD documents separated by ---, envtest will read/install the first document but not the rest. This is confusing while testing because the scheme has all of the correct GVKs but tests will fail when registering the watch for the second CRD in the file with the error no matches for kind "MyKind" in version "mygroup/version". When running outside of tests, there are no errors because all the CRDs get installed properly using kubectl apply.

I'm not sure the current library used for parsing yaml supports reading multiple documents from a single file however I believe the apimachinery decoder does.

I discovered this issue because I have an external CRD as a dependency of my project which exposes its definitions as a single yaml file.

[DirectXMan12]

/kind bug

Yeah, we should tackle this. It's not hard -- it just requires a tweak to the CRD loading code

/help-wanted

[DirectXMan12]

/good-first-issue

[k8s-ci-robot]

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[DirectXMan12]

/priority important-longterm

[anthonyho007]

/assign @anthonyho007

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[delp]

Hello,

I am a first time contributor and I wanted to try taking on this issue. I have been working with the operator-sdk, and so have some familiarity with CRDs, watches, and the controller. But I can't figure out how to build this repository, and didn't find what I was looking for in any of the docs for FAQ. Can someone help me get started?

[GrigoriyMikhalkin]

Hi, i would like to take this issue, seems like no one is working on it