I'm striving to achieve the following :

• have multiple docker containers that perform some period tasks
• have a component running on the localhost that besides other tasks manages (starts/stops) the containers
• from time to time the services running within the containers need to publish the result. Therefore they bind to an exposed port using ZMQ and send the result.
• the component running on localhost subscribes to a specific port and listens on that.

The problem is that every container requires a specific/different port on the localhost network to bind to and publish the results. And this implies that I need to listen on all container ports.

Is it possible to listen to a single port and all containers publish their work there ?

If not , what would the options be ?

Thanks