I've been using GCE and gcloud for a few weeks now. A new set of VPN tools were released in alpha last Dec. 3rd (https://cloud.google.com/compute/docs/vpn), and I need to start testing with them.
The problem is that gcloud doesn't seem to recognise this new set of tools, and I get errors like:
$ gcloud compute target-vpn-gateways create --region us-central1 --network default vpn1
ERROR: (gcloud.compute) Invalid choice: 'target-vpn-gateways'.
$ gcloud compute vpn-tunnels describe
ERROR: (gcloud.compute) Invalid choice: 'vpn-tunnels'
target-vpn-gateways and vpn-tunnels are just not part of the command groups.
So, I though of updating the core and compute components, but they're all up to date. This seems so new that there's no information at this time in Google Cloud documentation about updating the SDK to be able to use these VPN tools.