EKS : could not find any suitable subnets for creating the ELB

问题

I am trying to expose a service to the outside world using the loadBalancer type service.

For that, i have followed this doc

https://aws.amazon.com/premiumsupport/knowledge-center/eks-kubernetes-services-cluster/

My loadbalancer.yaml looks like this

apiVersion: v1
kind: Service
metadata:
  name: nginx-service
spec:
  type: LoadBalancer
  selector:
    app: nginx
  ports:
    - protocol: TCP
      port: 80
      targetPort: 80

But the load balancer is not creating as expected I am getting the following error

Warning  SyncLoadBalancerFailed  8s (x3 over 23s)  service-controller  Error syncing load balancer: failed to ensure load balancer: could not find any suitable subnets for creating the ELB

Seems like its because of some issues in the subnet tags to solve,but i have the required tags in my subnets

kubernetes.io/cluster/<cluster-name>. owned  
kubernetes.io/role/elb   1

But still, I am getting the error could not find any suitable subnets for creating the ELB

回答1:

By default AWS EKS only attaches load balancers to public subnets. In order to launch it in a private subnet you need to not only label your subnets (which it looks like you did) but also annotate your load balancer-

service.beta.kubernetes.io/aws-load-balancer-internal: "true"

You can find more information here.

回答2:

Possibly your subnet is not a public one, i.e. accessible from the internet. This will be required for your Loadbalancer to accept traffic from the outside world. In order to make it public, you need to attach an Internet Gateway to your VPC. Check here for more documentation.

来源：https://stackoverflow.com/questions/62468996/eks-could-not-find-any-suitable-subnets-for-creating-the-elb