Feature: Investigate simpler networking

[justinsb]

The existing networking options seem to do full IPAM, but simple ip tunneling of CIDRs might be easier. We already allocate CIDRs in the API server, and nodes already have full visibility into other nodes's CIDRs.

Ubuntu’s Fan networking though seems to offer this: https://insights.ubuntu.com/2015/06/24/introducing-the-fan-simpler-container-networking/

We could also simply directly set up tunnels to every other node.

[binarybana]

I think Calico looks particularly exciting too (though not sure how it compares with Fan), esp given that policies are already being demoed: https://www.projectcalico.org/calico-network-policy-comes-to-kubernetes/

[goltermann]

Removing v1.3 milestone as this is a feature and won't make 1.3.

[justinsb]

I've actually made a lot of progress here, but most excitingly was able to separate it out into a separate controller thanks to #25614 . My WIP is here https://github.com/kopeio/kope-routing Once the 1.3 dust clears I hope to polish it up, but it isn't tied to a k8s release any more!

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[caseydavenport]

I believe this issue isn't relevant any more - there are a number of simple and easy to use networks available for k8s now.

/assign
/close