add volume_size

main.tf

@@ -1,5 +1,7 @@
+
+
 resource "aws_vpc" "sgtm_vpc" {
-  cidr_block           = "10.123.0.0/16"
+  cidr_block           = var.vpc_cidr
   enable_dns_hostnames = true
   enable_dns_support   = true
 
@@ -10,7 +12,7 @@ resource "aws_vpc" "sgtm_vpc" {
 
 resource "aws_subnet" "sptm_public_subnet" {
   vpc_id                  = aws_vpc.sgtm_vpc.id
-  cidr_block              = "10.123.1.0/24"
+  cidr_block              = var.public_cidr
   map_public_ip_on_launch = true
   availability_zone       = "us-east-1a"
 
@@ -55,7 +57,7 @@ resource "aws_security_group" "sgtm_sg" {
     from_port   = 0
     to_port     = 0
     protocol    = "-1"
-    cidr_blocks = ["172.59.221.135/32"]
+    cidr_blocks = [var.allowed_ingress_cidr]
   }
 
   egress {
@@ -66,13 +68,24 @@ resource "aws_security_group" "sgtm_sg" {
   }
 }
 
+resource "tls_private_key" "key" {
+  algorithm   = var.tls_key_algorithm
+}
+
 resource "aws_key_pair" "sgtm_auth" {
-    key_name = "sgtmkey"
-    public_key = file("~/.ssh/sgtmkey.pub")
+  key_name   = "${var.name_prefix}-key-${var.name_suffix}"
+  public_key = tls_private_key.key.public_key_openssh
+
+  provisioner "local-exec" {
+    command = <<EOF
+      echo "${tls_private_key.key.private_key_pem}" > key.pem
+      chmod 0600 key.pem
+EOF
+  }
 }
 
 resource "aws_instance" "dev_node" {
-    instance_type = "t2.micro"
+    instance_type = var.instance_type
     ami = data.aws_ami.server_ami.id
     key_name = aws_key_pair.sgtm_auth.id
     vpc_security_group_ids = [aws_security_group.sgtm_sg.id]
@@ -80,7 +93,7 @@ resource "aws_instance" "dev_node" {
     user_data = file ("userdata.tpl")
 
     root_block_device {
-        volume_size = 10
+        volume_size = var.volume_size
     }
 
     tags = {

providers.tf

@@ -5,8 +5,9 @@ terraform {
     }
   }
 }
+# Configure the AWS Provider
 provider "aws" {
-  region                   = "us-east-1"
-  shared_credentials_files = ["~/.aws/credentials"]
-  profile                  = "vscode"
+  region = var.aws_region
+  access_key = var.aws_access_key
+  secret_key = var.aws_secret_key
 }

variables.tf

@@ -0,0 +1,67 @@
+# AWS variables
+variable "aws_region" {
+  default = "us-east-2"
+  description = "The AWS Region"
+}
+
+variable "name_prefix" {
+  description = "The prefix for all your resources"
+  default     = "testing"
+  type        = string
+}
+
+variable "name_suffix" {
+  description = "The suffix for all your resources"
+  type        = string
+}
+
+variable "aws_access_key" {
+  description = "AWS Access Key"
+  type = string
+}
+
+variable "aws_secret_key" {
+  description = "AWS Secret Key"
+  type = string
+}
+variable "tls_key_algorithm" {
+  default   = "RSA"
+  type      = string
+}
+variable "vpc_cidr" {
+  description = "VPC CIDR"
+  default     = "10.123.0.0/16"
+}
+variable "public_cidr" {
+  description = "Public CIDR"
+  default     = "10.123.1.0/24"
+}
+variable "ingress_cidr" {
+  description = "CIDR that is allowed ingress access"
+  default     = "172.59.221.135/32"
+}
+
+variable "instance_type" {
+  description = "Instance Type"
+  default     = "t2.micro"
+  validation {
+          condition     = ( 
+            var.instance_type == "t2.micro"   ||
+            var.instance_type == "t3.medium"  ||
+            var.instance_type == "m5.large"   ||
+            var.instance_type == "c5.large"   ||
+            var.instance_type == "c5a.large"  ||
+            var.instance_type == "m5.2xlarge" ||
+            var.instance_type == "c5.2xlarge" ||
+            var.instance_type == "m5.4xlarge" ||
+            var.instance_type == "c5.4xlarge"
+          )
+          error_message = "Instance_type must be set to a valid vm instance type."
+      }
+}
+
+variable "volume_size" {
+  description = "Instance volume size in Gigabytes"
+  default = 10
+  type = number
+}