From 2798944a209b5a4303ab357f585de6a11489c620 Mon Sep 17 00:00:00 2001
From: Lloyd Philbrook <lloyd@tablexi.com>
Date: Sat, 18 Nov 2017 18:05:33 -0600
Subject: [PATCH 1/2] ADD rds parameter group provided test

---
 rds/example/parameter_group_provided.tf | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 rds/example/parameter_group_provided.tf

diff --git a/rds/example/parameter_group_provided.tf b/rds/example/parameter_group_provided.tf
new file mode 100644
index 0000000..c2187a6
--- /dev/null
+++ b/rds/example/parameter_group_provided.tf
@@ -0,0 +1,16 @@
+module "rds-parameter-group-provided" {
+  source = "../"
+
+  engine = "postgres"
+  name = "rds-parameter-group-provided"
+  parameter_group_name = "${aws_db_parameter_group.parameter-group-provided.id}"
+  subnets = ["rds-parameter-group-provided"]
+  version = "9.6"
+  vpc_id = "rds-parameter-group-provided"
+}
+
+resource "aws_db_parameter_group" "parameter-group-provided" {
+  name = "parameter-group-provided"
+  family = "parameter-group-provided"
+  description = "parameter-group-provided"
+}

From 2f37d8cacfface5d62f100ec37e79aae9bf647b4 Mon Sep 17 00:00:00 2001
From: Lloyd Philbrook <lloyd@tablexi.com>
Date: Sat, 18 Nov 2017 18:08:31 -0600
Subject: [PATCH 2/2] ADD rds parameter group provided var

---
 rds/example/parameter_group_provided.tf | 1 +
 rds/main.tf                             | 2 +-
 rds/variables.tf                        | 5 +++++
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/rds/example/parameter_group_provided.tf b/rds/example/parameter_group_provided.tf
index c2187a6..6f22f70 100644
--- a/rds/example/parameter_group_provided.tf
+++ b/rds/example/parameter_group_provided.tf
@@ -4,6 +4,7 @@ module "rds-parameter-group-provided" {
   engine = "postgres"
   name = "rds-parameter-group-provided"
   parameter_group_name = "${aws_db_parameter_group.parameter-group-provided.id}"
+  parameter_group_provided = true
   subnets = ["rds-parameter-group-provided"]
   version = "9.6"
   vpc_id = "rds-parameter-group-provided"
diff --git a/rds/main.tf b/rds/main.tf
index 442dc28..9e20ceb 100644
--- a/rds/main.tf
+++ b/rds/main.tf
@@ -27,7 +27,7 @@ resource "aws_db_subnet_group" "mod" {
 }
 
 resource "aws_db_parameter_group" "mod" {
-  count = "${var.parameter_group_name != "" ? 0 : 1}"
+  count = "${var.parameter_group_provided ? 0 : 1}"
   name = "${local.parameter_group_name}"
   family = "${local.family}"
   description = "${local.family} parameter group for ${var.name} ${var.env}"
diff --git a/rds/variables.tf b/rds/variables.tf
index 18ea7ce..0ee08d5 100644
--- a/rds/variables.tf
+++ b/rds/variables.tf
@@ -52,6 +52,11 @@ variable "parameter_group_name" {
   default = ""
 }
 
+variable "parameter_group_provided" {
+  description = "If the parameter_group_name is provided, must be set to true."
+  default = false
+}
+
 variable "port" {
   description = "Override the default port"
   default = ""