Auto-creating A records with kubernetes services

7/3/2017

I've got a kubernetes 1.6.2 cluster, and am creating a service like:

kind: Service
apiVersion: v1
metadata:
  name: hello
  namespace: myns
  annotations:
      service.beta.kubernetes.io/aws-load-balancer-internal: 0.0.0.0/0
      dns.alpha.kubernetes.io/internal: mydomain.com
spec:
  selector:
    app: hello-world
  ports:
    - protocol: "TCP"
      port: 80
      targetPort: 5000
  type: LoadBalancer

I'd expect this to create an internal ELB (which it does) but also set up an A record on the AWS Route53 hosted zone for mydomain.com as per https://github.com/kubernetes/kops/tree/master/dns-controller (which it doesn't). Is there something I need to do to enable A record creation?

-- ashic
amazon-route53
kubernetes

2 Answers

7/4/2017

In route 53 create a type A record with Alias Yes prior to launching your cluster and Kurbernetes will audio update it with proper Alias Target which gets resolved to the correct IP upon app boot up when you issue

kubectl expose rs .....
-- Scott Stensland
Source: StackOverflow

8/29/2017

This might not work since dns.alpha.kubernetes.io/internal requires that you use NodePort, at least that's what's written in here https://github.com/kubernetes/kops/issues/1082

Update:

There's an open issue about this A-record. CNAME record can be created but A record is not yet working. Forgot the issue number but I think you can find it from kops github issues.

-- Spitz
Source: StackOverflow