Add a new job ci-kubernetes-e2e-gce-alpha-api
Add a new job ci-kubernetes-e2e-gce-alpha-api

This job requires a dedicated project which is whitelisted to access
compute Alpha API.

GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid