kubespray/tests/files/coreos-calico-aio.yml

# Instance settings
cloud_image_family: coreos-stable
cloud_region: us-central1-a
cloud_machine_type: "n1-standard-2"
mode: aio
##user-data to simply turn off coreos upgrades
startup_script: 'systemctl disable locksmithd && systemctl stop locksmithd'

# Deployment settings
bootstrap_os: coreos
kube_network_plugin: calico
resolvconf_mode: host_resolvconf # this is required as long as the coreos stable channel uses docker < 1.12
deploy_netchecker: true
kubedns_min_replicas: 1
cloud_provider: gce