github.com/shashidharatd/test-infra@v0.0.0-20171006011030-71304e1ca560/jobs/env/ci-kubernetes-e2e-gce-new-master-upgrade-master.env (about)

     1  ### job-env
     2  # Upgrade master only, in gce(debian), from master-1 to master.
     3  
     4  STORAGE_MEDIA_TYPE=application/vnd.kubernetes.protobuf
     5