Docker container domain name not accessible from application code

[samaddico]

So following setup documentation on
https://github.com/crosbymichael/skydock, i got this running and working fine

docker run -d -p 172.17.42.1:53:53/udp --name skydns crosbymichael/skydns -nameserver 8.8.8.8:53 -domain docker

I created 2 containers
mongo container

docker run --name mongo1 -h mongo1.mongo.dev.docker -p 27017:27017 -d mongo

Spring boot app container

docker run --name templatengine -h templatengine.template.dev.docker  -d template

Now, the spring app uses a mongo db.so i set host in code to mongo1.mongo.dev.docker,but it keeps timing out, without connecting.

Running dig @172.17.42.1 +short mongo1.mongo.dev.docker returns the appropriate IP.

I also tried linking the containers,but to no avail.

docker run --name templatengine -h templatengine.template.dev.docker --link mongo1:mongo1 -d templat

Any help is much appreciated.