Automatic merge from submit-queue (batch tested with PRs 47083, 44115, 46881, 47082, 46577)

Add an e2e test for server side get

Print a better error from the response. Performs validation to ensure it
does not regress in alpha state.

This is tests and bug fixes for https://github.com/kubernetes/community/pull/363

@kubernetes/sig-api-machinery-pr-reviews