Feature: Validation webhook for serviceexport

[mridulgain]

🔖 Feature description

Validate serviceexport objects during admission.

🎤 Pitch

Exporting a service by creating a serviceexport object only makes sense when it's created withing the application namespace of the specified slice. Currently user may create a serviceexport with a slice name even if the slice object is not present on that cluster or in case it's present but doesn't even has any application namespace onboarded.

✌️ Solution

Implement a validation webhook that checks,

1. The specified slice is present on the cluster
2. The namespace in which the serviceexport is being created, is present in the "onboarded application namespace" array.

🔄️ Alternative

No response

👀 Have you spent some time to check if this issue has been raised before?

• I checked and didn't find similar issue

🏢 Have you read the Code of Conduct?

• I have read the Code of Conduct

[kon3m]

would like to work on this ,can you please assign me this issue? @mridulgain

[narmidm]

sure @kon3m. I have assigned this issue to you. Let us know @kon3m, if you need any help with this issue or you can connect directly with @mridulgain for any discussion on slack channel.

[kon3m]

@narmidm @mridulgain i cannot work on this issue until this PR gets merged. Will work on another issue till then.

[narmidm]

Certainly, @kon3m, I will attempt to close the other pull request soon. After that, you can return to this issue.

[chetak123]

Hey @kon3m are you currently working on this issue ?