Hey all!

I'm using localstack for a project where I consume data from kinesis, process it and put it in elasticsearch.

In the later versions of localstack 'elasticsearch' was removed and is now lazily loaded after call to es::CreateElasticsearchDomain (at least that's how I understand it from #1881, #1865, #1870).

I'm running localstack in a docker using testcontainers (which gives me dynamic port mappings etc). My processing code is running on localhost.

The problem I'm facing now is that the response from es::CreateElasticsearchDomain returns an elasticsearch endpoint like: http://[docker container id]:port.
With my set up, this gives me two issues:
1. [docker container id] host is not (I believe) reachable from localhost unless I add it to /etc/hosts or something like that. I can surely "hack" my way around this by just replacing [docker container id] with localhost.
2. It says here: https://github.com/localstack/localstack/issues/1881#issuecomment-567495056 that we should not assume that elasticsearch will run on a static port in the future. When running localstack in a docker, how would I know which port to expose then in order to reach elasticsearch from localhost?

I currently have my tests running using 1.10.7 but there I just make a dummy call to es::CreateElasticsearchDomain and hardcode elasticsearch endpoint to http://localhost:4571. (It seems like it always chooses 4571 as of now?)

Thanks
Stefan
'CloudWatchLogsLogGroupArn': 'arn:aws:logs:%s:%s:log-group:sample-domain' % (aws_stack.get_region(), TEST_AWS_ACCOUNT_ID),  
                        'Enabled': False,
                    }
                },
                'Status': config_status
            },
            'SnapshotOptions': {
                'Options': {
                    'AutomatedSnapshotStartHour': randint(0, 23)
                },
                'Status': config_status
            },
            'VPCOptions': {
                'Options': {
                    'AvailabilityZones': [
                        'us-east-1b'
                    ],
                    'SecurityGroupIds': [
                        'sg-12345678'
                    ],
                    'SubnetIds': [
                        'subnet-12345678'
                    ],
                    'VPCId': 'vpc-12345678'
                },
                'Status': config_status
            }
        }
    }
def get_domain_status(domain_name, deleted=False):