examples/hello-world/hello-world.yaml

tosca_definitions_version: tosca_simple_yaml_1_0

node_types:

  WebServer:
    derived_from: tosca:Root
    capabilities:
      host:
        type: tosca:Container

  WebApp:
    derived_from: tosca:WebApplication
    properties:
      port:
        type: integer

topology_template:

  node_templates:
    web_server:
      type: WebServer

    web_app:
      type: WebApp
      properties:
        port: 9090
      requirements:
        - host: web_server
      interfaces:
        Standard:
          configure: scripts/configure.sh
          start: scripts/start.sh
          stop: scripts/stop.sh

  outputs:
    port:
      type: integer
      value: { get_property: [ web_app, port ] }