heat_template_version: '2013-05-23' description: | Template which creates single instance parameters: InstanceType: type: string ImageId: type: string network: type: string resources: Server: type: OS::Nova::Server properties: name: ost1-test_heat image: {get_param: ImageId} flavor: {get_param: InstanceType} flavor_update_policy: REPLACE networks: - network: {Ref: network} outputs: servers: value: get_resource: Server