1-deploy-vm-attachvol.yaml

heat_template_version: 2014-10-16

description: a template to deploy two compute instances (CentOS7) \
  - one for web frontend \
  - another for db backend with an attached volume

parameters:
  key_name:
    type: string
    label: Key Name
    description: Name of key-pair to be used for compute instance
    default: son-key
  image_id:
    type: string
    label: Image ID
    description: Image to be used for compute instance
    default: cirros
  instance_type:
    type: string
    label: Instance Type
    description: Type of instance (flavor) to be used
    default: fl.default
    constraints:
      - allowed_values: [ fl.default, fl.large, fl.xlarge, fl.huge ]
        description: Value must be one of m1.medium, m1.large or m1.xlarge
  myDbVolume:
    type: string
    label: myDbVolume
    description: a Volume to attach to an instance (get unique Volume ID from Horizon or Cinder CLI)
    default: d98aceb0-eb39-4b39-bf5a-b8e54d3a54c5

resources:
  my_web_instance:
    type: OS::Nova::Server
    properties:
      networks:
        - network: net-ptin
      key_name: { get_param: key_name }
      image: { get_param: image_id }
      flavor: { get_param: instance_type }
  my_db_instance:
    type: OS::Nova::Server
    properties:
      networks:
        - network: net-ptin
      key_name: { get_param: key_name }
      image: { get_param: image_id }
      flavor: { get_param: instance_type }
  db_vol_attach:
    type: OS::Cinder::VolumeAttachment
    properties: 
      instance_uuid: { get_resource: my_db_instance }
      volume_id: { get_param: myDbVolume } 

outputs:
  www_instance_ip:
    description: the IP address of the instance
    value: { get_attr: [my_web_instance, first_address] }
  db_instance_ip:
    description: the IP address of the instance
    value: { get_attr: [my_db_instance, first_address] }