constellation/docs/versioned_docs/version-2.16/workflows/lb.md

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2024-02-29 03:59:55 -05:00
# Expose a service
Constellation integrates the native load balancers of each CSP. Therefore, to expose a service simply [create a service of type `LoadBalancer`](https://kubernetes.io/docs/concepts/services-networking/service/#loadbalancer).
## Internet-facing LB service on AWS
To expose your application service externally you might want to use a Kubernetes Service of type `LoadBalancer`. On AWS, load-balancing is achieved through the [AWS Load Balancing Controller](https://kubernetes-sigs.github.io/aws-load-balancer-controller) as in the managed EKS.
Since recent versions, the controller deploy an internal LB by default requiring to set an annotation `service.beta.kubernetes.io/aws-load-balancer-scheme: internet-facing` to have an internet-facing LB. For more details, see the [official docs](https://kubernetes-sigs.github.io/aws-load-balancer-controller/v2.2/guide/service/nlb/).
For general information on LB with AWS see [Network load balancing on Amazon EKS](https://docs.aws.amazon.com/eks/latest/userguide/network-load-balancing.html).
:::caution
Before terminating the cluster, all LB backed services should be deleted, so that the controller can cleanup the related resources.
:::