GCP Workload Identity partially implemented — still requires SA key

[Anantha-Kandrapu]

Currently Workload identity feature for GCP is not working, because when I use SA keys it works.

Going through the code, the feature seems to be partially implemented (only the validation part). But the actual storage driver still looks for private key

https://github.com/NetApp/trident/blob/cc51e6bb0b061d0d8676ec4a00365f2f2732cd85/storage_drivers/gcp/gcp_gcnv.go#L530

I could also see for Azure WI there's a flag identityLabel = true which i can't find for GCP .

https://github.com/NetApp/trident/blob/cc51e6bb0b061d0d8676ec4a00365f2f2732cd85/cli/cmd/install.go#L499

[Anantha-Kandrapu]

I can raise a PR. Please let me know. Thanks!!

[clintonk]

Hello, @Anantha-Kandrapu. We're working on this and expect to optionally accept WIF JSON in place of the API Key.