diff --git a/CN_PREPROD/main.tf b/CN_PREPROD/main.tf
new file mode 100644
index 00000000..604c0a21
--- /dev/null
+++ b/CN_PREPROD/main.tf
@@ -0,0 +1,20 @@
+module "management_zone" {
+  source = "./management_zone"
+}
+module "alerting" {
+  source = "./alerting"
+  depends_on = [module.management_zone]
+}
+module "dashboard" {
+  source = "./dashboard"
+  depends_on = [module.management_zone]
+}
+module "custom_service" {
+  source = "./custom_service"
+}
+module "processgroup_naming" {
+  source = "./processgroup_naming"
+}
+module "service_naming" {
+  source = "./service_naming"
+}
\ No newline at end of file
diff --git a/EMEA_PREPROD/main.tf b/EMEA_PREPROD/main.tf
new file mode 100644
index 00000000..604c0a21
--- /dev/null
+++ b/EMEA_PREPROD/main.tf
@@ -0,0 +1,20 @@
+module "management_zone" {
+  source = "./management_zone"
+}
+module "alerting" {
+  source = "./alerting"
+  depends_on = [module.management_zone]
+}
+module "dashboard" {
+  source = "./dashboard"
+  depends_on = [module.management_zone]
+}
+module "custom_service" {
+  source = "./custom_service"
+}
+module "processgroup_naming" {
+  source = "./processgroup_naming"
+}
+module "service_naming" {
+  source = "./service_naming"
+}
\ No newline at end of file
diff --git a/NA_PREPROD/main.tf b/NA_PREPROD/main.tf
new file mode 100644
index 00000000..604c0a21
--- /dev/null
+++ b/NA_PREPROD/main.tf
@@ -0,0 +1,20 @@
+module "management_zone" {
+  source = "./management_zone"
+}
+module "alerting" {
+  source = "./alerting"
+  depends_on = [module.management_zone]
+}
+module "dashboard" {
+  source = "./dashboard"
+  depends_on = [module.management_zone]
+}
+module "custom_service" {
+  source = "./custom_service"
+}
+module "processgroup_naming" {
+  source = "./processgroup_naming"
+}
+module "service_naming" {
+  source = "./service_naming"
+}
\ No newline at end of file