Inventory setup

Hi All, I am new to awx. Recently I started working on awx. I am creating an inventory as per my client requirements. They want to set up inventories instance wise . Usually we add hosts in inventory but clients want to add instances. Job should run on instances,

For example,We have one host name abc.example.com which have 2 instances currently running on this node. Instance1 on port 415 and instance 2 on port 416 . Client want to execute job in instance and they want to setup inventory instance wise . If we setup inventory instance wise how job will run on instance as we can’t connect to instance through ssh like host.