Random port binding not showing up in the .attr object

I run a container and use the option ports={8000: None} in order to assign random port binding for this container. I then try to print the container.attr to look for what port did it bind to. It always get empty values: u'PortBindings': {u'8000/tcp': [{u'HostPort': u'', u'HostIp': u''}]}

I use the shell to make sure the container is running and binding ports correctly, and it works just fine. The container is indeed running the ports are bind correctly. But I need to access the port binding from the container object.

What is the problem here?

[shin-]

I believe you will have to call container.reload() to refresh the container info after it’s allocated a port (i.e. once it’s been started).

[oiwn]

Same issue.

Version 17.03.0-ce-mac2 (15654) docker-py (1.10.6)