feat: output the current region and domain name

output.tf

@@ -3,7 +3,17 @@ output "url" {
   value       = scalingo_app.app.url
 }
 
+output "domain" {
+  description = "Hostname to use to access the application (without https://)"
+  value       = trim(scalingo_app.app.url, "https://")
+}
+
 output "git_url" {
   description = "Hostname to use to deploy code with Git + SSH"
   value       = scalingo_app.app.git_url
 }
+
+output "region" {
+  description = "Region where the application is deployed"
+  value       = local.current_region
+}

region.tf

@@ -0,0 +1,7 @@
+data "environment_variables" "scalingo_region_env" {
+  filter = "^SCALINGO_REGION"
+}
+
+locals {
+  current_region = lookup(data.environment_variables.scalingo_region_env.items, "SCALINGO_REGION", null)
+}

versions.tf

@@ -3,8 +3,13 @@ terraform {
 
   required_providers {
     scalingo = {
-      source  = "Scalingo/scalingo"
+      source  = "scalingo/scalingo"
       version = "~> 2.0"
     }
+
+    environment = {
+      source  = "eppo/environment"
+      version = "~> 1.3"
+    }
   }
 }