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I want to set up an ingress controller on AWS EKS for several microservices that are accessed from an external system.

The microservices are accessed via virtual host-names like svc1.acme.com, svc2.acme.com, ...

I set up the nginx ingress controller with a helm chart: https://github.com/helm/charts/tree/master/stable/nginx-ingress

My idea was to reserve an Elastic IP Address and bind the nginx-controller to that IP by setting the variable externalIP.

This way I should be able to access the services with a stable wildcard DNS entry *.acme.com --> 54.72.43.19

I can see that the ingress controller service get the externalIP, but the IP is not accessible.

NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
ingress-nginx-ingress-controller LoadBalancer 10.100.45.119 54.72.43.19 80:32104/TCP,443:31771/TCP 1m

Any idea why?

Update:

I installed the ingress controller with this command:


helm install --name ingress -f values.yaml stable/nginx-ingress


Here is the gist for values, the only thing changed from the default is


externalIPs: ["54.72.43.19"]


https://gist.github.com/christianwoehrle/3b136023b1e0085b028a67ca6a0959b7

Maybe you can achieve that by using a Network Load Balancer (https://docs.aws.amazon.com/elasticloadbalancing/latest/network/introduction.html), that supports fixed IPs, as the backing for your Nginx ingress, eg (https://aws.amazon.com/blogs/opensource/network-load-balancer-support-in-kubernetes-1-9/):

apiVersion: v1
kind: Service
metadata:
 name: nginx
 namespace: default
 labels:
 app: nginx
 annotations:
 service.beta.kubernetes.io/aws-load-balancer-type: "nlb"
spec:
 externalTrafficPolicy: Local
 ports:
 - name: http
 port: 80
 protocol: TCP
 targetPort: 80
 selector:
 app: nginx
type: LoadBalancer