Swam 1.12 Multi-host networking help


This sounds like the same issue I had recently https://forums.docker.com/t/internal-dns-issue/17398.

For me this worked fine, when using boot2docker for the virtual machines (as you are doing above), but exhibited exactly the same behaviour when using vagrant “ubuntu/trusty64”.

Have you tried checking the /etc/hosts files in the containers themselves? As I understand it these should be automatically rewritten to by docker, but when i examined these, it was only for services on the same host.