#Requirements
You need to upload a CoreOS image to your OpenStack cloud, see the documentation
#Usage
You will need the following environment variables to run you cluster
export OS_PASSWORD=password
export OS_AUTH_URL=http://mon.cloud.openstack/identity/v2.0/tokens
export OS_USERNAME=username
export OS_TENANT_NAME=tenant_name
export OS_FLOATING_IP_POOL=PublicNetwork
export OS_FLAVOR=m1.small
export OS_IMAGE=coreos
export OS_SSH_USERNAME=core
and then just run vagrant with the vagrant-openstack-provider
vagrant up --provider=openstack