heat_template_version: 2015-04-30

description: >
  Creates a port on the external network. The IP address will be chosen
  automatically if FixedIPs is empty.

parameters:
  ExternalNetName:
    description: Name of the external neutron network
    default: external
    type: string
  PortName:
    description: Name of the port
    default: ''
    type: string
  ControlPlaneIP: # Here for compatability with noop.yaml
    description: IP address on the control plane
    type: string
  ControlPlaneNetwork: # Here for compatibility with ctlplane_vip.yaml
    description: The name of the undercloud Neutron control plane
    default: ctlplane
    type: string
  FixedIPs:
    description: >
        Control the IP allocation for the VIP port. E.g.
        [{'ip_address':'1.2.3.4'}]
    default: []
    type: json

resources:

  ExternalPort:
    type: OS::Neutron::Port
    properties:
      network: {get_param: ExternalNetName}
      name: {get_param: PortName}
      fixed_ips: {get_param: FixedIPs}
      replacement_policy: AUTO

outputs:
  ip_address:
    description: external network IP
    value: {get_attr: [ExternalPort, fixed_ips, 0, ip_address]}
  ip_subnet:
    # FIXME: this assumes a 2 digit subnet CIDR (need more heat functions?)
    description: IP/Subnet CIDR for the external network IP
    value:
          list_join:
            - ''
            - - {get_attr: [ExternalPort, fixed_ips, 0, ip_address]}
              - '/'
              - {get_attr: [ExternalPort, subnets, 0, cidr, -2]}
              - {get_attr: [ExternalPort, subnets, 0, cidr, -1]}