HOT Syntax

heat_template_version: 2013-05-23
...
resources:
  ...
  the_resource:
    type: OS::Neutron::FirewallRule
    properties:
      action: String
      description: String
      destination_ip_address: String
      destination_port: String
      enabled: Boolean
      ip_version: String
      name: String
      protocol: String
      source_ip_address: String
      source_port: String 
      availability_zone: String