AWS Minikube Terraform module

AWS Minikube is a single node Kubernetes deployment in AWS. It creates EC2 host and deploys Kubernetes cluster using Kubeadm tool. It provides full integration with AWS. It is able to handle ELB load balancers, EBS disks, Route53 domains etc.

This project is intended for short-lived development and testing. Not for production use.

• Updates
• Prerequisites and dependencies
• Including the module
• Using custom AMI Image
• Add-ons
• Custom add-ons
• Kubernetes version

Updates

• 13.4.2023 Update to OpenTofu and rework the addons
• 7.4.2023 Update to Kube 1.32 and move from Calico to Flannel
• 26.3.2023 Update to use CentOS 10 and CRI-O
• 16.6.2024 Update to Kubernetes 1.30.2
• 19.5.2024 Update to Kubernetes 1.30.1 + Ingress and External DNS add-on updates
• 29.4.2024 Update to Kubernetes 1.30.0
• 31.3.2024 Update to Kubernetes 1.29.3 + Ingress and External DNS add-on updates
• 18.2.2024 Update to Kubernetes 1.29.2 + Ingress add-on update
• 30.12.2023 Update to Kubernetes 1.29.0
• 26.11.2023 Update to Kubernetes 1.28.4
• 12.11.2023 Update to Kubernetes 1.28.3 + Update some add-ons
• 15.10.2023 Update to Kubernetes 1.28.2 + Update some add-ons
• 16.4.2023 Update to Kubernetes 1.27.1 + Use external AWS Cloud Provider
• 1.4.2023 Update to Kubernetes 1.26.3 + update add-ons (Ingress-NGINX Controller, External DNS, Metrics Server, AWS EBS CSI Driver)
• 4.3.2023 Update to Kubernetes 1.26.2 + update add-ons (Ingress-NGINX Controller)
• 22.1.2023 Update to Kubernetes 1.26.1 + update add-ons (External DNS)
• 10.12.2022 Update to Kubernetes 1.26.0 + update add-ons (AWS EBS CSI Driver, Metrics server)
• 13.11.2022 Update to Kubernetes 1.25.4 + update add-ons
• 2.10.2022 Update to Kubernetes 1.25.2 + update add-ons
• 26.8.2022 Update to Kubernetes 1.25.0 + Calico upgrade

Prerequisites and dependencies

• AWS Minikube deploys into existing VPC / public subnet. If you don't have your VPC / subnet yet, you can use this configuration or this module to create one.
  • The VPC / subnet should be properly linked with Internet Gateway (IGW) and should have DNS and DHCP enabled.
  • Hosted DNS zone configured in Route53 (in case the zone is private you have to use IP address to copy kubeconfig and access the cluster).

This project is now developed and tested using OpenTofu and that should be also the only local dependency you need to deploy AWS Minikube. It should work also with Terraform. Kubeadm is used only on the EC2 host and doesn't have to be installed locally.

Including the module

Although it can be run on its own, the main value is that it can be included into another Terraform configuration.

module "minikube" {
  source = "github.com/scholzj/terraform-aws-minikube"

  aws_region    = "eu-central-1"
  cluster_name  = "my-minikube"
  aws_instance_type = "t2.medium"
  ssh_public_key = "~/.ssh/id_rsa.pub"
  aws_subnet_id = "subnet-8a3517f8"
  ami_image_id = "ami-b81dbfc5"
  hosted_zone = "my-domain.com"
  hosted_zone_private = false

  tags = {
    Application = "Minikube"
  }

  addons = [
      "https://raw.githubusercontent.com/scholzj/terraform-aws-minikube/master/addons/kubernetes-dashabord/init.sh",
      "https://raw.githubusercontent.com/scholzj/terraform-aws-minikube/master/addons/kubernetes-metrics-server/init.sh",
      "https://raw.githubusercontent.com/scholzj/terraform-aws-minikube/master/addons/external-dns/init.sh",
      "https://raw.githubusercontent.com/scholzj/terraform-aws-minikube/master/addons/kubernetes-nginx-ingress/init.sh"
  ]
}

An example of how to include this can be found in the examples dir.

Using custom AMI Image

AWS Minikube is built and tested on CentOS 10. But gives you the possibility to use their own AMI images. Your custom AMI image should be based on RPM distribution and should be similar to Cent OS 10. When ami_image_id variable is not specified, the latest available CentOS 10 image will be used.

Add-ons

Currently, following add-ons are supported:

• Kubernetes Dashboard
• External DNS
• Kubernetes Nginx Ingress Controller
• Kubernetes Metrics Server

The add-ons will be installed automatically based on the Terraform variables.

Custom add-ons

Custom add-ons can be added if needed. From every URL in the addons list, the initialization scripts will automatically run it using bash to deploy it. Minikube is using RBAC. So the custom add-ons have to be RBAC ready.

Kubernetes version

The intent for this module is to use it for development and testing against the latest version of Kubernetes. As such, the primary goal for this module is to ensure it works with whatever is the latest version of Kubernetes supported by Minikube. This includes provisioning the cluster as well as setting up networking and any of the supported add-ons. This module might, but is not guaranteed to, also work with other versions of Kubernetes. At your own discretion, you can use the kubernetes_version variable to specify a different version of Kubernetes for the Minikube cluster.