Kubernetes cluster in multiple clouds

Deploy to AWS, Alibaba, and Azure with Terraform in a single step

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Yes, you can run a Kubernetes cluster in multiple clouds. This is called multi-cloud Kubernetes, and it can help with disaster recovery, cost efficiency, and global reach.

The GitHub repository can be found HERE.

I split the Terraform code for each cloud, so you can find an aws.tf, Alibaba.tf, and Azure.tf file. The code is heavily commented on for learning purposes.

Let's start with aws.tf

# This block tells Terraform to use the AWS provider and set the region to the value of the variable
provider "aws" {
  region = var.aws_region # Use the variable for the region
}

# This block creates an Amazon EKS (Elastic Kubernetes Service) cluster
resource "aws_eks_cluster" "example" {
  name     = var.cluster_name                  # Name of the EKS cluster
  role_arn = aws_iam_role.eks_cluster_role.arn # The IAM role that EKS will use

  # VPC (Virtual Private Cloud) configuration for the EKS cluster
  vpc_config {
    subnet_ids = aws_subnet.eks_subnet[*].id # List of subnet IDs where the EKS cluster will be created
  }
}

# This block creates an IAM (Identity and Access Management) role for the EKS cluster
resource "aws_iam_role" "eks_cluster_role" {
  name =…