Allow vhost different from connection address

[mzealey]

Trying to migrate from ActiveMQ to RabbitMQ (clustered). In the RabbitMQ cluster you have to tie queues to a particular vhost. But in the cluster I have dns names rabbitmq1/2/3. I could create a single DNS entry to cover all 3 but then I'd lose resiliency as I'd only have 1 active connection and I'd rely on dns/connection failures to migrate me to an active node. So I'd rather have ongoing connections to all 3 different servers using the same vhost name so that if one fails stompman will automatically fail over to another connection.

I'd suggest the simplest way might be to add an optional vhost argument to https://github.com/community-of-python/stompman/blob/main/packages/stompman/stompman/config.py#L29 defaulting to None which would mean 'the same as host' and hence preserve the back-compatibility.

[vrslev]

Hi! Sounds good. How are you supposed to pass the parameter during connection? With host header?

[mzealey]

Yes exactly

[vrslev]

Ok, I'm open to a PR. Make sure to add a test (or parametrization item to current test) after editing the implementation. Also, I'm not sure if vhost is the best choice for this parameter. Maybe it's fine, but then a docstring should be added that would explain its meaning