Swarm mode and cross network proxy reversing

[xgenvn]

Hi,

I have a question about this setup:

• a.example.com -> nginx (docker-nginx) (192.168.51.111) -> (resolved to external IP) 192.168.51.122

Is it possible to have cross machine proxy reversing using docker nginx proxy?

Thanks.

[evertramos]

I did not understand your question... Could clarify, please.

[xgenvn]

@evertramos
I meant like below setup:

For my understanding, it's not possible, I just want to ask if I miss something here (mostly network layer options in docker)

[thunfischbrot]

It is possible if you add another layer. The connection „External Network“ doesn‘t originate at docker-nginx, but at a service below, which can be another nginx instance (or any other reverse proxy). It‘s reverse proxies all the way down...

[evertramos]

Hello @xgenvn !

Well I have never tested that and not sure how would work using swarm as you mentioned in the question.

But as you designed I think might be possible, but the point is how you will create a docker network with another server... not sure how you will do it.

I think might not be possible with this setting the way it was designed.

Might get some other option with traefik, I am starting a new proxy with it which will have a couple more options for settings.

[xgenvn]

@evertramos @thunfischbrot I'll try with another service running under nginx-docker network, and resolving to external network. Thank you a lot.