From cf26e973f3d5fcb7fbfc05115991501f33773837 Mon Sep 17 00:00:00 2001
From: Premysl Kouril <p.kouril@cra.cz>
Date: Thu, 26 Mar 2020 16:51:40 +0100
Subject: [PATCH] add mod dependencies

---
 iam.tf       | 6 ++++++
 main.tf      | 2 ++
 variables.tf | 6 ++++++
 3 files changed, 14 insertions(+)

diff --git a/iam.tf b/iam.tf
index 085fc64..6a49ae9 100644
--- a/iam.tf
+++ b/iam.tf
@@ -1,4 +1,5 @@
 resource "kubernetes_namespace" "alb_ingress" {
+  depends_on  = [var.mod_dependency] 
   count = (var.enabled && var.k8s_namespace != "kube-system") ? 1 : 0
 
   metadata {
@@ -9,6 +10,7 @@ resource "kubernetes_namespace" "alb_ingress" {
 ### iam ###
 # Policy
 data "aws_iam_policy_document" "alb_ingress" {
+  depends_on  = [var.mod_dependency] 
   count = var.enabled ? 1 : 0
 
   statement {
@@ -141,6 +143,7 @@ data "aws_iam_policy_document" "alb_ingress" {
 }
 
 resource "aws_iam_policy" "alb_ingress" {
+  depends_on  = [var.mod_dependency] 
   count       = var.enabled ? 1 : 0
   name        = "${var.cluster_name}-alb-ingress"
   path        = "/"
@@ -151,6 +154,7 @@ resource "aws_iam_policy" "alb_ingress" {
 
 # Role
 data "aws_iam_policy_document" "alb_ingress_assume" {
+  depends_on  = [var.mod_dependency] 
   count = var.enabled ? 1 : 0
 
   statement {
@@ -175,12 +179,14 @@ data "aws_iam_policy_document" "alb_ingress_assume" {
 }
 
 resource "aws_iam_role" "alb_ingress" {
+  depends_on  = [var.mod_dependency] 
   count              = var.enabled ? 1 : 0
   name               = "${var.cluster_name}-alb-ingress"
   assume_role_policy = data.aws_iam_policy_document.alb_ingress_assume[0].json
 }
 
 resource "aws_iam_role_policy_attachment" "alb_ingress" {
+  depends_on  = [var.mod_dependency] 
   count      = var.enabled ? 1 : 0
   role       = aws_iam_role.alb_ingress[0].name
   policy_arn = aws_iam_policy.alb_ingress[0].arn
diff --git a/main.tf b/main.tf
index 5475e7a..8309a52 100644
--- a/main.tf
+++ b/main.tf
@@ -1,9 +1,11 @@
 data "helm_repository" "default" {
+  depends_on  = [var.mod_dependency] 
   name = var.helm_repo_name
   url  = var.helm_repo_url
 }
 
 resource "helm_release" "alb_ingress" {
+  depends_on  = [var.mod_dependency] 
   count      = var.enabled ? 1 : 0
   name       = var.helm_release_name
   repository = data.helm_repository.default.metadata[0].name
diff --git a/variables.tf b/variables.tf
index 9d07247..0dcde03 100644
--- a/variables.tf
+++ b/variables.tf
@@ -47,3 +47,9 @@ variable "k8s_service_account_name" {
   default     = "aws-alb-ingress-controller"
   description = "The k8s alb-ingress service account name"
 }
+
+#dependence variable binds all AWS resources allocated by
+#this module. Dependent modules reference this variable
+variable "mod_dependency" {
+  default = null
+}