heat.yaml

  POD_lan0_network_port:
    type: OS::Neutron::Port
    properties:
      name:
        str_replace:
          template: POD_lan0_port_cloudID%
          params:
            "cloudID%": { get_param: cloudID }
      network_id: { get_resource: lan0_network }
      port_security_enabled: False
      security_groups: []
      allowed_address_pairs: []

# server
  POD:
    type: OS::Nova::Server
    properties:
      name: pod-node-1
      key_name: { get_resource: ssh-key }
      image: { get_param: image }
      flavor: { get_param: flavor }
      networks:
        repeat:
          for_each:
            <%index%>: { get_param: [ wan_array ] }
          template:
            - port: { get_attr: [ wan_group, resource.<%index%>.POD_wan_port, id ] }
        repeat:
          for_each:
            <%port%>: ["0"]
          template:
            - port: { get_resource: POD_lan0_network_port }

output.txt

RESP: [400] Connection: keep-alive Content-Length: 254 Content-Type: application/json; charset=UTF-8 Date: Wed, 20 Feb 2019 21:21:33 GMT X-Openstack-Request-Id: req-a5cbe6a1-f3dc-4396-b078-ce13137727f9
RESP BODY: {"explanation": "The server could not comply with the request since it is either malformed or otherwise incorrect.", "code": 400, "error": {"message": "\"[{u'port': None}]\" is not a map", "traceback": null, "type": "ValueError"}, "title": "Bad Request"}
POST call to orchestration for http://controller.pod.local:8004/v1/20bf29773a6d4ba683d3850411e46f03/stacks used request id req-a5cbe6a1-f3dc-4396-b078-ce13137727f9
ERROR: "[{u'port': None}]" is not a map
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/cliff/app.py", line 400, in run_subcommand
    result = cmd.run(parsed_args)
  File "/usr/lib/python2.7/dist-packages/osc_lib/command/command.py", line 41, in run
    return super(Command, self).run(parsed_args)
  File "/usr/lib/python2.7/dist-packages/cliff/display.py", line 112, in run
    column_names, data = self.take_action(parsed_args)
  File "/usr/lib/python2.7/dist-packages/heatclient/osc/v1/stack.py", line 184, in take_action
    stack = client.stacks.create(**fields)['stack']
  File "/usr/lib/python2.7/dist-packages/heatclient/v1/stacks.py", line 172, in create
    data=kwargs, headers=headers)
  File "/usr/local/lib/python2.7/dist-packages/keystoneauth1/adapter.py", line 357, in post
    return self.request(url, 'POST', **kwargs)
  File "/usr/lib/python2.7/dist-packages/heatclient/common/http.py", line 318, in request
    raise exc.from_response(resp)
HTTPBadRequest: ERROR: "[{u'port': None}]" is not a map
clean_up CreateStack: ERROR: "[{u'port': None}]" is not a map
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/osc_lib/shell.py", line 135, in run
    ret_val = super(OpenStackShell, self).run(argv)
  File "/usr/lib/python2.7/dist-packages/cliff/app.py", line 279, in run
    result = self.run_subcommand(remainder)
  File "/usr/lib/python2.7/dist-packages/osc_lib/shell.py", line 180, in run_subcommand
    ret_value = super(OpenStackShell, self).run_subcommand(argv)
  File "/usr/lib/python2.7/dist-packages/cliff/app.py", line 400, in run_subcommand
    result = cmd.run(parsed_args)
  File "/usr/lib/python2.7/dist-packages/osc_lib/command/command.py", line 41, in run
    return super(Command, self).run(parsed_args)
  File "/usr/lib/python2.7/dist-packages/cliff/display.py", line 112, in run
    column_names, data = self.take_action(parsed_args)
  File "/usr/lib/python2.7/dist-packages/heatclient/osc/v1/stack.py", line 184, in take_action
    stack = client.stacks.create(**fields)['stack']
  File "/usr/lib/python2.7/dist-packages/heatclient/v1/stacks.py", line 172, in create
    data=kwargs, headers=headers)
  File "/usr/local/lib/python2.7/dist-packages/keystoneauth1/adapter.py", line 357, in post
    return self.request(url, 'POST', **kwargs)
  File "/usr/lib/python2.7/dist-packages/heatclient/common/http.py", line 318, in request
    raise exc.from_response(resp)
HTTPBadRequest: ERROR: "[{u'port': None}]" is not a map

        repeat:
          for_each:
            <%index%>: { get_param: [ wan_array ] }
          template:
            - port: { list_join: [', ', [ { get_attr: [ wan_group, resource.<%index%>.POD_wan_port, id ] }, { get_resource: POD_lan0_network_port } ] ] }

Returns the following:

HTTPBadRequest: ERROR: "[{u'port': u', '}]" is not a map