eks.tf

# create some variables
variable "cluster_name" {
  type        = string
  description = "EKS cluster name."
}
variable "cluster_endpoint" {
  type        = string
  description = "Endpoint for your Kubernetes API server."
}
variable "cluster_certificate_authority_data" {
  type        = string
  description = "Base64 encoded certificate data required to communicate with the cluster."
}
variable "spot_termination_handler_chart_name" {
  type        = string
  description = "EKS Spot termination handler Helm chart name."
}
variable "spot_termination_handler_chart_repo" {
  type        = string
  description = "EKS Spot termination handler Helm repository name."
}
variable "spot_termination_handler_chart_version" {
  type        = string
  description = "EKS Spot termination handler Helm chart version."
}
variable "spot_termination_handler_chart_namespace" {
  type        = string
  description = "Kubernetes namespace to deploy EKS Spot termination handler Helm chart."
}

# get EKS authentication for being able to manage k8s objects from terraform
provider "kubernetes" {
  host                    = var.cluster_endpoint
  cluster_ca_certificate  = base64decode(var.cluster_certificate_authority_data)
  exec {
    api_version = "client.authentication.k8s.io/v1beta1"
    args        = ["eks", "get-token", "--cluster-name", var.cluster_name]
    command     = "aws"
  }
}

provider "helm" {
  kubernetes {
    host                   = var.cluster_endpoint
    cluster_ca_certificate = base64decode(var.cluster_certificate_authority_data)
    exec {
      api_version = "client.authentication.k8s.io/v1beta1"
      args        = ["eks", "get-token", "--cluster-name", var.cluster_name]
      command     = "aws"
    }
  }
}

# deploy spot termination handler
resource "helm_release" "spot_termination_handler" {
  name          = var.spot_termination_handler_chart_name
  chart         = var.spot_termination_handler_chart_name
  repository    = var.spot_termination_handler_chart_repo
  version       = var.spot_termination_handler_chart_version
  namespace     = var.spot_termination_handler_chart_namespace
  wait_for_jobs = true
}