This post describes the creation of a multi-zone Kubernetes Cluster in AWS, using Terraform with some AWS modules. Specifically, we are going to use infrastructure as code to create:
A new VPC with multi-zone public & private Subnets, and a single NAT gateway.
A Kubernetes Cluster, based on Spot EC2 instances running in private Subnets, with an Autoscaling Group based on average CPU usage.
An Application Load Balancer (ALB) to accept public HTTP calls and route them into Kubernetes nodes, as well as run health checks to scale Kubernetes services if required.
An AWS Load Balancer Controller inside the Cluster, to receive & forward HTTP requests from the outside world into Kubernetes pods.
A DNS zone with SSL certificate to provide HTTPS to each Kubernetes service. This zone will be managed from Kubernetes by a service called External DNS.
Excellent article, it saved my lot of hours to write those code. I'll be tweaking it and using in my production setup, a 50 claps for your article. Thanks you very much!!!
Nice work thanks for sharing. Isn't the "kubernetes_config_map_v1_data" resource though going to wipe out the NodeGroup resource set by the EKS manager during provisioning in the "aws-auth" ConfigMap ?
