Equivalent to TestContainers.exposeHostPorts?

[hovinen]

I'm working on a test which must expose a service running on the host to a service running in a container.

In Java, this can be done with Testcontainers.exposeHostPorts(localServerPort); as per https://java.testcontainers.org/features/networking/.

I am unable to find an equivalent to this functionality in the Rust crate. How can one do this?

[dezyh]

I recommend linking to the actual section which you're referring to so other people don't get confused like me.

[thomaseizinger]

I am unable to find an equivalent to this functionality in the Rust crate. How can one do this?

It is not supported at the moment. I am not familiar with the Java implementation in how they achieve this.

[mervyn-mccreight]

I think this would indeed be very useful. I'll have a look at it when I find the time.

[DDtKey]

In order to achieve similar behavior it's possible to use one of the following ways:

• with_host("host.docker.internal" , Host::HostGateway)
  And after that you can try to use host.docker.internal:{host_port} from the container
• use host network (however, this way you lose isolation of container's ports)

These options were initially suggested in our Slack