Kubernetes Load Balancer with multiple ports

Load balancers can listen to multiple ports, but they can only point at one backend service. You’ll need to put something like ingress-nginx behind the load balancer to route traffic for different domains to different services.

kind: Service
apiVersion: v1
metadata:
  name: ingress-nginx
  namespace: ingress-nginx
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
spec:
  externalTrafficPolicy: Local
  type: LoadBalancer
  selector:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
  ports:
    - name: http
      port: 80
      targetPort: http
    - name: https
      port: 443
      targetPort: https

Just to add to the above answer, there are currently two implementations for an nginx ingress available, one from the Kubernetes community and one from NGINX, Inc. I couldn’t get the former to work, but the latter did work for me, as long as all the resources are within the same namespace.

I’ve contacted the DO support team and they confirmed this is indeed a requirement that will be documented at a later point.

You can deploy the ingress using the helm chart or through manual deployments: https://github.com/nginxinc/kubernetes-ingress