Make prevent_destroy configurable (#769)

Author: sethvargo

terraform/database.tf

@@ -60,7 +60,7 @@ resource "google_sql_database_instance" "db-inst" {
 
   lifecycle {
     # This prevents accidental deletion of the database.
-    prevent_destroy = true
+    prevent_destroy = var.prevent_destroy
   }
 
   depends_on = [

terraform/variables.tf

@@ -175,6 +175,13 @@ variable "enx_redirect_domain_map" {
   description = "Redirect domains and environments."
 }
 
+variable "prevent_destroy" {
+  type    = bool
+  default = true
+
+  description = "Prevent destruction of critical resources. Set this to false to actually destroy everything."
+}
+
 terraform {
   required_version = ">= 0.13.1"