LOCALSTACK_HOST is used wrongly. Cannot use with localstack v3.x.x on default setup

[patriano]

I'm trying to bump localstack version to 3.x.x but it returns me wrong queue url on creating queue. After investigation it looks like new localstack do not respect actual configuration (maybe something was fixed) and you are forced to use LOCALSTACK_HOST to override how localstack is returning created queue url. From docs:

LOCALSTACK_HOST -> This is interpolated into URLs and addresses that are returned by LocalStack. It has the form <hostname>:<port>.
ref

But testcontainers set only hostname without port.
Because of binding localstack exposed port (4566 by default) to random port generated by testcontainers, it is not consistent as localstack return 4566 port for created queue in localstack version >3.x.x

It should be fixed and <hostname>:<port> should be provided for LOCALSTACK_HOST considering random generated port for container.

As workaround setting LOCALSTACK.setPortBindings(List.of("4566:4566")) could be used but there is a danger of port collisions.

QueueUrl returned by localstack in version >3.x.x and with setting LOCALSTACK_HOST only with default hostname:

Port binding:

Env variable:

[patriano]

It looks like this is rather bug in new version of localstack than in testcontainers lib, I've raised an issue to localstack team -> link