routing traffic to a public Kubernetes service on AWS EC2

Question

I have a kubernetes (0.15) cluster running on CoreOS instances on Amazon EC2

When I create a service that I want to be publicly accessible, I currently add some private IP addresses of the EC2 instances to the service description like so:

{
  "kind": "Service",
  "apiVersion": "v1beta3",
  "metadata": {
    "name": "api"
  },
  "spec": {
    "ports": [
      {
        "name": "default",
        "port": 80,
        "targetPort": 80
      }
    ],
    "publicIPs": ["172.1.1.15", "172.1.1.16"],
    "selector": {
      "app": "api"
    }
  }
}

Then I can add these IPs to an ELB load balancer and route traffic to those machines.

But for this to work I need to have a maintain the list of all the machines in my cluster in all the services that I am running, which feels wrong.

What's the currently recommended way to solve this?

• If I know the PortalIP of a service is there a way to make it routable in the AWS VPC infrastructure?
• Is it possible to assign external static (Elastic) IPs to Services and have those routed?

(I know of createExternalLoadBalancer, but that does not seem to support AWS yet)

Answer 1

If someone will reach this question then I want to let you know that external load balancer support is available in latest kubernetes version.

Link to the documentation