!template syntax isn't supported for NetworkService.port

[jordan-bonser]

I've been attempting to use the environment yaml config to pass in the NetworkService port value, like so:

targets:
  main:
    resources:
      NetworkService:
        address: !template "$LG_NETWORK_ADDRESS"
        username: !template "$LG_NETWORK_USERNAME"
        password: !template "$LG_NETWORK_PASSWORD"
        port: !template "$LG_NETWORK_PORT"

Unfortunately this fails the attrs int validator as currently the !template functionality uses environment variables which are inherently strings.

In PDUDaemonPort for the index there has been the addition of an attrs converter:

@target_factory.reg_resource
@attr.s(eq=False)
class PDUDaemonPort(Resource):
    """The PDUDaemonPort describes a port on a PDU accessible via PDUDaemon

    Args:
        host (str): name of the host running the PDUDaemon
        pdu (str): name of the PDU in the configuration file
        index (int): index of the power port on the PDU
    """
    host = attr.ib(validator=attr.validators.instance_of(str))
    pdu = attr.ib(validator=attr.validators.instance_of(str))
    index = attr.ib(validator=attr.validators.instance_of(int), converter=int)

I believe adding this to the NetworkService Resource would mean the !template functionality would work for the NetworkService.port which would be ideal for our usecase.

[Emantor]

Please don't use the template functionality for resource settings. It is intended for i.e. the images category in the configuration yaml, please use the remote infrastructure with coordinator and exporter instead.