Serverless Kubernetes deployment with Amazon EKS on Fargate using AWS CDK v2 (Cloud Development Kit).
This CDK app boilerplate will deploy a 'nodeless' EKS cluster and default Fargate profile that matches all pods from the "kube-system" and "default" namespaces. It's also configured to run CoreDNS on Fargate.
The Kubernetes resource currently added is an Express.js "Hello World" API.
Also comes equipped with the following:
- AWS Load Balancer Controller with annotations in Ingress and Service K8s resources
- Kubernetes Secrets Encrypted with AWS KMS via EKS Encryption Provider
- AdminRole that can be assumed and provides EKS Console viewer access
- A VPC with two AZs and NAT GWs
When you cdk deploy this app you will notice that an output will be printed with the update-kubeconfig command, copy and paste it in your shell in order to connect to your EKS cluster with the "masters" role.
*** Note: You have to specify your AWS account # under /bin.
If you have issues with the CoreDNS deployment, validate that the pod template has the following Annotations: eks.amazonaws.com/compute-type: fargate
$ kubectl describe deployment coredns --namespace kube-system
Trigger a rollout of the coredns Deployment:
$ kubectl rollout restart -n kube-system deployment coredns