This script was provided by Google Compute Image Packages (https://github.com/GoogleCloudPlatform/compute-image-packages) and has been deprecated since over an year. Newer version of the package doesn't include it at all. So remove its usage and instead follow recommended instructions from https://cloud.google.com/compute/docs/disks/add-persistent-disk#formatting.
Cluster Configuration
Deprecation Notice: This directory has entered maintainence mode and will not be accepting new providers. Please submit new automation deployments to kube-deploy. Deployments in this directory will continue to be maintained and supported at their current level of support.
The scripts and data in this directory automate creation and configuration of a Kubernetes cluster, including networking, DNS, nodes, and master components.
See the getting-started guides for examples of how to use the scripts.
cloudprovider/config-default.sh contains a set of tweakable definitions/parameters for the cluster.
The heavy lifting of configuring the VMs is done by SaltStack.