fix version & providers

Author: AlexanderWiechert

provider.tf

@@ -0,0 +1,4 @@
+provider "aws" {
+  alias  = "main"
+  region = var.main_region
+}

vars.tf

@@ -17,4 +17,9 @@ variable "log_retention_days" {
 variable "enable_execute_command" {
   type    = bool
   default = false
-}
+}
+
+variable "main_region" {
+  type    = string
+  default = "eu-central-1"
+}

versions.tf

@@ -0,0 +1,10 @@
+terraform {
+  required_version = ">= 1.0"
+
+  required_providers {
+    aws = {
+      source  = "hashicorp/aws"
+      version = ">= 4.59"
+    }
+  }
+}