Managing virtual IPs - Kubernetes on AWS

Question

I've set-up a 3-node Kubernetes cluster on AWS. A unique virtual IP address is assigned to each pod and service. AWS route table is used to map the virtual IPs to actual IPs. This works perfectly fine but what I've notices is when new nodes are added this method isn't scalable. Is there any other way to handle these virtual IP? 

Answer 1

AWS route tables has a limit of 50 entries each, so this is not a very scalable solution. The most common approach is to use an overlay network. Two popular ones are

• CoreOS Flannel
• Weaveworks Weave