asbjornenge/rainbow-dock repository overview

⁠Rainbow-dock

DNS based service discovery for docker⁠ inspired by skydock⁠.

Rainbow-dock uses rainbow-dns⁠ combined with a simple populator⁠ to produce a dns based service discovery tool for your docker installation :rainbow::rocket:

⁠RUN rainbow-dock

docker run -p 8080:8080 -p 53:53 -p 53:53/udp -d asbjornenge/rainbow-dock --domain internal.domain --apihost 0.0.0.0 --dnshost 0.0.0.0 --fwdhost 8.8.8.8

For more options check out the rainbow-dns⁠ documentation.

⁠RUN rainbow-dock-populator

The next step is to run rainbow-dock-populator⁠. It will query your docker host(s) and populate rainbow-dock with the results.

	docker run -d asbjornenge/rainbow-dock-populator --dockerhost 10.0.0.10:4243 --apihost [rainbow-dock-container-or-host-ip]:port

You can now dig @[rainbow-dock-container-or-host-ip] "*.internal.domain".

⁠Service discovery

If your containers use rainbow-dock as their default dns service, they can discover each other using dns names, like the internet! You can configure that in a few different ways, read up on that here⁠.

And that is all. You now have dns based service discovery for your docker installation.

enjoy.