heat_template_version: 2013-05-23

description: >
  TOSCA simple profile with a Single Block Storage node shared by 2-Tier
  Application with custom AttachesTo Type and implied relationships.

parameters:
  cpus:
    type: number
    description: Number of CPUs for the server.
    default: 1
    constraints:
    - allowed_values:
      - 1
      - 2
      - 4
      - 8
  storage_size:
    type: number
    description: Size of the storage to be created.
    default: 1
  storage_snapshot_id:
    type: string
    description: Optional identifier for an existing snapshot to use when creating storage.
    default: ssid

resources:
  my_storage:
    type: OS::Cinder::Volume
    properties:
      size:
        get_param: storage_size
      snapshot_id:
        get_param: storage_snapshot_id

  my_web_app_tier_1:
    type: OS::Nova::Server
    properties:
      flavor: m1.medium
      image: fedora-amd64-heat-config
      user_data_format: SOFTWARE_CONFIG
      software_config_transport: POLL_SERVER_HEAT
    depends_on:
    - my_storage

  myattachesto_2:
    type: OS::Cinder::VolumeAttachment
    properties:
      instance_uuid:
        get_resource: my_web_app_tier_1
      mountpoint: /default_location
      volume_id:
        get_resource: my_storage

  my_web_app_tier_2:
    type: OS::Nova::Server
    properties:
      flavor: m1.medium
      image: fedora-amd64-heat-config
      user_data_format: SOFTWARE_CONFIG
      software_config_transport: POLL_SERVER_HEAT
    depends_on:
    - my_storage

  myattachesto_1:
    type: OS::Cinder::VolumeAttachment
    properties:
      instance_uuid:
        get_resource: my_web_app_tier_2
      mountpoint: /some_other_data_location
      volume_id:
        get_resource: my_storage

outputs:
  private_ip_1:
    description: The private IP address of the applications first tier.
    value:
      get_attr:
      - my_web_app_tier_1
      - networks
  private_ip_2:
    description: The private IP address of the applications second tier.
    value:
      get_attr:
      - my_web_app_tier_2
      - networks
  volume_id:
    description: The volume id of the block storage instance.
    value:
      get_resource: my_storage