#This yaml template instantiates kubernetes nodes (using instance.yaml subtemplate).
#It contains some node specific things, and has been split from main template
#to be able to do some late evaluation tricks.
heat_template_version: 2017-02-24
description: "This template instantiates a single kubernetes node using the instance.yaml subtemplate"
parameters:
  key_name:
    type: string
  flavor_name:
    type: string
  nodenum:
    type: number
  image_name:
    type: string
  network:
    type: string
  subnet:
    type: string
  notify_command:
    type: string
  security_group:
    type: string
resources:
  #Volume for storing /var/lib/docker for node.
  docker_storage:
    type: OS::Cinder::Volume
    properties:
      name: docker_storage
      size: 120
  #Call generic instance template.
  instance:
    type: instance.yaml
    properties:
      instance_name:
        str_replace_strict:
          template: "node%index%"
          params: { "%index%": { get_param: nodenum } }
      key_name: { get_param: key_name }
      image_name: { get_param: image_name }
      network: { get_param: network }
      subnet: { get_param: subnet }
      flavor_name: { get_param: flavor_name }
      notify_command: { get_param: notify_command }
      security_group: { get_param: security_group }
  #Attachment of docker volume to node.
  docker_storage_attachment:
    type: OS::Cinder::VolumeAttachment
    properties:
      volume_id: { get_resource: docker_storage }
      instance_uuid: { get_resource: instance }
outputs:
  OS::stack_id:
    value: { get_resource: instance }
  port_id:
    value: { get_attr: ["instance", "port_id"] }
  ip:
    value: { get_attr: ["instance", "ip"] }
  volumes:
    value: [[{ get_resource: docker_storage }, "/var/lib/docker"]]