Expose `ko` features as a third-party Envfunc

[vladimirvivien]

What do you want to see?

ko is a tool that automates the build and publication of Go code as container images. I think it would be useful to be able to create and deploy (locally or even remotely) container images during testing. This is especially true if building/testing Kubernetes controller/operators.

For instance, the following provides an idea of how that could work :

import(
    "sigs.k8s.io/e2e-framework/third_party/ko"
...
)

var testEnv env.Environment

func TestMain(m *testing.M) {
    testEnv.Setup(
        func(ctx context.Context, cfg *envconf.Config) (context.Context, error) {
            kotool = ko.Install("@latest")
            kotool.SetConfig("some-conf-file")
            kootool.RepoLogin("TOKEN_ENV")
            kotool.BuildLocal(ctx, "package-path") // builds/publishes in local docker, saves image name in ctx
            kotool.BuildRemote(ctx, "repo-path", "package-path")
            return ctx, nil
        }
    )

    testEnv.Finish(
        func(ctx context.Context, cfg *envconf.Config) (context.Context, error) {
            ko.RemoveLocalmage(ctx) // removes all built images from names saved in ctx
        }
}

Extra Labels

No response

[heylongdacoder]

Hello, if no one is working on this yet, may I give it a try? 😄

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/lifecycle stale

[vladimirvivien]

@heylongdacoder Still interested in working on this ?

/remove-lifecycle stale

[heylongdacoder]

Hey @vladimirvivien, I have finished part of it with test cases. I will probably commit the code for review this weekend. But if I am blocking the progress, please feel free to take this! Many thanks!

[vladimirvivien]

Hi @heylongdacoder were you able to start PR?

[heylongdacoder]

@vladimirvivien sorry for the delay, I am working on it now.

[vladimirvivien]

@heylongdacoder no worries at all.

[heylongdacoder]

hey @vladimirvivien I would like to continue on this and confirm a few things.

1. Are BuildDockerLocal and BuildDockerRemote still relevant?
2. If point 1 is still relevant, for RemoveLocalImage, we would need the docker binary since ko does not have the functionality to remove images from Docker. Do you think that is ok?
3. RemoveLocalImage, if we want to remove the images that were uploaded to KinD, currently I got no idea on how to implement this, since KinD does not provide the functionality to remove the images. Let me know if you have idea about this.

Thanks!

[vladimirvivien]

Hi @heylongdacoder when I wrote the issue, I was giving an example of what could work. You are free to implement whatever works best for the feature.

Thanks agai.