Added postgres option

examples/aws-rds/README.md

@@ -0,0 +1,15 @@
+## Creating an RDS insatnce in AWS
+
+This example provides sample configuration for creating a mysql or postgres insatnce. For Oracle/SQL Servers, replace default values with appropriate values, they are not included in sample since the number of options are high.
+
+The example creates db subnet groups and a VPC security group as inputs to the instance creation
+
+For AWS provider, set up your AWS environment as outlined in https://www.terraform.io/docs/providers/aws/index.html
+
+If you need to use existing security groups and subnets, remove the sg.tf and subnets.tf files and replace the corresponidng sections in main.tf under aws_db_instance
+
+Several paraneters are externalized, review the different variables.tf files and change them to fit your needs. Carefully review the CIDR blocks, egress/ingress rules, availability zones that are very specific to your account.
+
+Once ready run 'terraform plan' to review. At the minimum, provide the vpc_id as input variable.
+
+Once satisfied with plan, run 'terraform apply'  

examples/aws-rds/main.tf

@@ -1,17 +1,19 @@
 resource "aws_db_instance" "default" {
+    depends_on = "aws_security_group.default"
     identifier = "${var.identifier}"
     allocated_storage = "${var.storage}"
     engine = "${var.engine}"
-    engine_version = "${var.engine}"
-    instance_class = "${var.engine_version}"
+    engine_version = "${lookup(var.engine_version, var.engine)}"
+    instance_class = "${var.instance_class}"
     name = "${var.db_name}"
     username = "${var.username}"
     password = "${var.password}"
-    vpc_security_group_ids = ["aws_security_group.default.id"]
+    vpc_security_group_ids = ["${aws_security_group.default.id}"]
+    db_subnet_group_name = "${aws_db_subnet_group.default.id}"
 }
 
 resource "aws_db_subnet_group" "default" {
-    name = "main"
+    name = "main_subnet_group"
     description = "Our main group of subnets"
     subnet_ids = ["${aws_subnet.subnet_1.id}", "${aws_subnet.subnet_2.id}"]
 }

examples/aws-rds/outputs.tf

@@ -1,6 +1,9 @@
 output "subnet_group" {
     value = "${aws_db_subnet_group.default.name}"
 }
-output "subnet_group" {
-    value = "${aws_db_subnet_group.default.name}"
+output "db_instance_id" {
+    value = "${aws_db_instance.default.id}"
+}
+output "db_instance_address" {
+    value = "${aws_db_instance.default.address}"
 }

examples/aws-rds/sg-variables.tf

@@ -1,9 +1,9 @@
 variable "cidr_blocks" {
-	default = ""0.0.0.0/0""
+	default = "0.0.0.0/0"
     description = "CIDR for sg"
 }
 
 variable "sg_name" {
-	default = ""rds_sg""
+	default = "rds_sg"
     description = "Tag Name for sg"
 }

examples/aws-rds/sg.tf

@@ -1,6 +1,7 @@
 resource "aws_security_group" "default" {
   name = "main_rds_sg"
   description = "Allow all inbound traffic"
+  vpc_id = "${var.vpc_id}"
 
   ingress {
       from_port = 0
@@ -13,7 +14,7 @@ resource "aws_security_group" "default" {
       from_port = 0
       to_port = 0
       protocol = "-1"
-      cidr_blocks = "0.0.0.0/0"
+      cidr_blocks = ["0.0.0.0/0"]
   }
 
   tags {

examples/aws-rds/subnet-variables.tf

@@ -10,15 +10,14 @@ variable "subnet_2_cidr" {
 
 variable "az_1" {
 	default = "us-east-1b"
-    description = "Your AZ"
+    description = "Your Az1, use AWS CLI to find your account specific"
 }
 
 variable "az_2" {
 	default = "us-east-1c"
-    description = "Your AZ"
+    description = "Your Az2, use AWS CLI to find your account specific"
 }
 
 variable "vpc_id" {
-	default = "vpc-b6090dd3"
     description = "Your VPC ID"
 }

examples/aws-rds/variables.tf

@@ -9,17 +9,20 @@ variable "storage" {
 }
 
 variable "engine" {
-	default = "mysql"
-    description = "Engine type, supported values mysql"
+	default = "postgres"
+    description = "Engine type, example values mysql, postgres"
 }
 
 variable "engine_version" {
-	default = "5.6.17"
     description = "Engine version"
+    default = {
+        mysql = "5.6.22"
+        postgres = "9.4.1"
+    }
 }
 
 variable "instance_class" {
-	default = "db.t1.micro"
+	default = "db.t2.micro"
     description = "Instance class"
 }
 
@@ -29,7 +32,7 @@ variable "db_name" {
 }
 
 variable "username" {
-	default = "user"
+	default = "myuser"
     description = "User name"
 }