CommaDelimitedList in $heat_outputs_path is not a list

[Long Quan Sha]

In my stack, I used a OS::Heat::SoftwareConfig and OS::Heat::SoftwareDeployment, I'd like to get a output with LIST format from deployement,

 config:
    type: OS::Heat::SoftwareConfig
    properties:
      config: |
        #!/bin/bash
        echo -n "c15eaa6f-d08b-412e-a2b9-1c9173e6c0dd," >>$heat_outputs_path.port_list
        echo -n "c15eaa6f-d08b-412e-a2b9-1c9173e6c0dd," >>$heat_outputs_path.port_list
      group: script
      outputs:
        - {name: port_list, type: CommaDelimitedList}

 do_config:
    type: OS::Heat::SoftwareDeployment
    properties:
      signal_transport: HEAT_SIGNAL
      config: {get_resource: api_config}
      server: {get_param: server_id}

Then I need to pass the LIST output to my resource,
 update_port:
     type: SHA::POST::Ports
     properties:
       port_list: {get_attr: [do_config, port_list]}

But I got an error:

| stack_status | CREATE_FAILED |
| stack_status_reason | Resource CREATE failed: StackValidationFailed: |
| | resources.update_port: Property error: |
| | update_port.Properties.port_list: "u'"c15eaa6f-d08b- |
| | 412e-a2b9-1c9173e6c0dd","c15eaa6f-d08b-412e- |
| | a2b9-1c9173e6c0dd",'" is not a list

am I wrong using CommaDelimitedList in $heat_outputs_path ? I output a comma delimited list in $heat_outputs_path, but it is not a LIST, can not be used as a LIST parameter for other resource.

[Long Quan Sha (shalq)]

sorry, the config is :

config:
    type: OS::Heat::SoftwareConfig
    properties:
      config: |
        #!/bin/bash
        echo -n "c15eaa6f-d08b-412e-a2b9-1c9173e6c0dd," >>${heat_outputs_path}.port_list
        echo -n "c15eaa6f-d08b-412e-a2b9-1c9173e6c0dd," >>$h{eat_outputs_path}.port_list
      group: script
      outputs:
        - {name: port_list, type: CommaDelimitedList}

[Peter Razumovsky (prazumovsky)]

What is the type of port_list property in SHA::POST::Ports?

[Sergey Kraynev (skraynev)]

Need get feedback from Steve Baker about this behavior.

[Long Quan Sha (shalq)]

        PORT_LIST: properties.Schema(
            properties.Schema.LIST,
            _('ID list of existing ports.'),
            update_allowed=True,
        ),

[Steve Baker (steve-stevebaker)]

The initial intention of the output type was that heat does no processing when it receives output values from a signal - its just a hint supplied to the hook.

However parsing the outputs based on type sounds like a reasonable enhancement. But RC1 is close so if it is not going to be proposed soon then please set the Milestone to next