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Create EKS Cluster with Terraform

install terraform

sudo yum install -y yum-utils shadow-utils
sudo yum-config-manager --add-repo https://rpm.releases.hashicorp.com/AmazonLinux/hashicorp.repo
sudo yum -y install terraform

sudo apt install terraform=1.5.7-1
sudo apt-mark hold terraform

sample-create-3x-clusters-for-thanos-poc-

  • get terraform template 

    git clone https://github.com/panlm/eks-blueprints-clusters.git
cd eks-blueprints-clusters/multi-cluster-thanos

  • execute function to create an existed host zone (../../CLI/awscli/route53-cmd)

    curl -sL -o /tmp/func-create-hosted-zone.sh https://panlm.github.io/CLI/functions/func-create-hosted-zone.sh
source /tmp/func-create-hosted-zone.sh

DOMAIN_NAME=eks1224.aws.panlm.xyz
create-hosted-zone -n ${DOMAIN_NAME}

  • need setup upstream domain registry from your labtop (git/git-mkdocs/CLI/awscli/route53-cmd)

  • terraform.tfvars

    aws_region          = "us-east-2"
environment_name    = "thanos"
cluster_version     = "1.27"
hosted_zone_name    = "eks1206.aws.panlm.xyz" # your Existing Hosted Zone
eks_admin_role_name = "panlm" # Additional role admin in the cluster

  • build environment

    cd environment
terraform init
terraform apply -auto-approve

  • create ekscluster1, following output to save kubeconfig file

    cd ekscluster1
terraform init
terraform apply -auto-approve

  • create ekscluster2 and ekscluster3 from their folder with same commands

  • in each eks cluster, will install following addons by argocd. access argocd svc url with default password saved in aws secret manager
    ../../git-attachment/eks-cluster-with-terraform-png-1.png

internal error

  • re-run terraform apply if you got following errors
    │       * Internal error occurred: failed calling webhook "mservice.elbv2.k8s.aws": failed to call webhook: Post "https://aws-load-balancer-webhook-service.kube-system.svc:443/mutate-v1-service?timeout=10s": no endpoints available for service "aws-load-balancer-webhook-service"
│ 
│   with module.eks_cluster.module.eks_blueprints_addons.module.cert_manager.helm_release.this[0],
│   on .terraform/modules/eks_cluster.eks_blueprints_addons.cert_manager/main.tf line 9, in resource "helm_release" "this":
│    9: resource "helm_release" "this" {

refer