(Part 5 Do not merge)Fix diffs in compute forwarding rule: collect realGCP logs to verify

[gemmahou]

Change description

Based on Fixes PR part 1-4

• (Part 1)Fix diffs in compute forwarding rule: operations #2720
• (Part 2)Fix diffs in compute forwarding rule: Labels can only be added or modified by the setLabels method #2723
• (Part 3)Fix diffs in compute forwarding rule: remove networkTier field from global forwarding rule #2724
• (Part 4)Fix diffs in compute forwarding rule: normalize IPAddress in golden logs #2725

This is the final PR for diff fixes, and is used to verify changes in part 1-4. We do not merge this PR.

Note: we only focus on logs related to ComputeForwardingRule in this PR. For diffs in other dependencies, we should fix them later during their migration to direct controller.

realGCP with direct controller: No diffs in ComputeForwardingRule logs

realGCP with TF controller: No diffs in ComputeForwardingRule logs, except request URLs&headers, and compute endpoint versions(TF uses beta, but direct controller uses v1 instead)

Tests you have done

• Run make ready-pr to ensure this PR is ready for review.
• Perform necessary E2E testing for changed resources.

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[gemmahou]

This field appears in TF-controller log, but not in direct controller log.

We have noticed this diff before, and I think this is a "bug" in TF-controller. region is output only, it does nothing here in the request body. Also the format global/regions looks strange, I don't find the source code of this value.

[gemmahou]

It's strange that there's no "setLabels" request with TF-controller(update label-one: value-one to label-one: value-two). I tried to update labels with the TF-controller and checked gcloud output, the label value did get updated. But there's no update labels request in the log.

While, I think the direct-controller log is correct, we expect this "setLabels" request to update the label value.