docs: Adding Kubecost on docs/patterns (#1867)

docs/patterns/kubecost.md

@@ -0,0 +1,7 @@
+---
+title: Kubecost
+---
+
+{%
+   include-markdown "../../patterns/kubecost/README.md"
+%}

patterns/kubecost/run-me-in-24h/main.tf

@@ -1,8 +1,25 @@
+terraform {
+  required_version = ">= 1.0"
+
+  required_providers {
+    aws = {
+      source  = "hashicorp/aws"
+      version = ">= 4.47"
+    }
+    time = {
+      source  = "hashicorp/time"
+      version = "0.10.0"
+    }
+    null = {
+      source  = "hashicorp/null"
+      version = "3.2.2"
+    }
+  }
+}
+
 provider "aws" {
   region = local.region
 }
-data "aws_caller_identity" "current" {}
-data "aws_availability_zones" "available" {}
 
 data "terraform_remote_state" "main" {
   backend = "local"
@@ -25,7 +42,7 @@ locals {
 
 resource "null_resource" "download_file" {
   triggers = {
-    always_run = "${timestamp()}"
+    always_run = timestamp()
   }
 
   provisioner "local-exec" {
@@ -48,9 +65,9 @@ resource "time_sleep" "wait_60_seconds" {
 resource "aws_cloudformation_stack" "athena_integration" {
   count = fileexists("${path.module}/crawler-cfn.yml") ? 1 : 0
 
-  name  = "kubecost"
+  name          = "kubecost"
   template_body = try(file("${path.module}/crawler-cfn.yml"), null)
   capabilities  = ["CAPABILITY_IAM"]
 
   depends_on = [null_resource.download_file, time_sleep.wait_60_seconds]
-}
+}