tosca_definitions_version: tosca_simple_yaml_1_0

description: >
  TOSCA simple profile with server and attached block storage using a named Relationship Template for the storage attachment.

topology_template:
  inputs:
    cpus:
      type: integer
      description: Number of CPUs for the server.
      constraints:
        - valid_values: [ 1, 2, 4, 8 ]
    storage_size:
      type: scalar-unit.size
      description: Size of the storage to be created.
      default: 1 GB
    storage_location:
      type: string
      description: Block storage mount point (filesystem path).

  node_templates:
    my_server:
      type: Compute
      capabilities:
        host:
          properties:
            disk_size: 10 GB
            num_cpus: { get_input: cpus }
            mem_size: 4 MB
        os:
          properties:
            architecture: x86_64
            type: Linux
            distribution: Fedora
            version: 18.0
      requirements:
        - local_storage:
            node: my_storage
            # Declare template to use with 'relationship' keyword
            relationship: storage_attachment

    my_storage:
      type: BlockStorage
      properties:
        size: { get_input: storage_size }

  relationship_templates:
    storage_attachment:
      type: AttachesTo
      properties:
        location: { get_input: storage_location }

  outputs:
    private_ip:
      description: The private IP address of the newly created compute instance.
      value: { get_attribute: [my_server, private_address] }
    volume_id:
      description: The volume id of the block storage instance.
      value: { get_attribute: [my_storage, volume_id] }