Add dynamic resources naming and tfvars example

prod/main.tf

@@ -8,7 +8,7 @@ module "vpc" {
   source  = "terraform-aws-modules/vpc/aws"
   version = "3.14.2"
 
-  name = var.DEMO_VPC_NAME
+  name = "${var.PROJECT_NAME}-vpc"
   cidr = var.DEMO_VPC_CIDR
 
   azs             = var.DEMO_VPC_AVAILABILITY_ZONES
@@ -21,7 +21,6 @@ module "vpc" {
 
   tags = {
     Terraform = "true"
-    Project   = var.PROJECT_TAG
   }
 }
 
@@ -30,7 +29,7 @@ module "vpc_data" {
   source     = "../modules/vpc_data"
   depends_on = [module.vpc]
 
-  VPC_NAME        = var.DEMO_VPC_NAME
+  VPC_NAME        = "${var.PROJECT_NAME}-vpc"
   BASTION_HOST_AZ = var.DEMO_BASTION_HOST_AZ
 }
 
@@ -43,21 +42,24 @@ module "ami_data" {
 module "bastion_host" {
   source = "../modules/bastion_host"
 
+  PROJECT_NAME = var.PROJECT_NAME
+
   VPC_ID    = module.vpc_data.vpc.id
   SUBNET_ID = module.vpc_data.bastion_host_subnet.id
 
-  EC2_AMI           = module.ami_data.amazon_linux.id
-  EC2_TYPE          = var.DEMO_BASTION_HOST_TYPE
-  EC2_INSTANCE_NAME = var.DEMO_BASTION_HOST_NAME
-  EC2_KEY_NAME      = var.DEMO_BASTION_HOST_KEY_NAME
+  EC2_AMI      = module.ami_data.amazon_linux.id
+  EC2_TYPE     = var.DEMO_BASTION_HOST_TYPE
+  EC2_KEY_NAME = var.DEMO_BASTION_HOST_KEY_NAME
 }
 
 # Create ALB
 module "alb" {
   source = "../modules/alb"
 
+  PROJECT_NAME = var.PROJECT_NAME
+
   VPC_ID = module.vpc_data.vpc.id
-  PROJECT_TAG = var.PROJECT_TAG
+
   ALB_SUBNETS_IDS = module.vpc_data.public_subnets.ids
 }
 
@@ -65,6 +67,8 @@ module "alb" {
 module "app" {
   source = "../modules/app"
 
+  PROJECT_NAME = var.PROJECT_NAME
+
   VPC_ID          = module.vpc_data.vpc.id
   VPC_SUBNETS_IDS = module.vpc_data.private_subnets.ids
 

prod/terraform.tfvars.example

@@ -0,0 +1,20 @@
+# general
+REGION      = "eu-west-3"
+PROJECT_NAME = "demo"
+
+# vpc
+DEMO_VPC_CIDR                 = "10.0.0.0/24"
+DEMO_VPC_AVAILABILITY_ZONES   = ["eu-west-3a", "eu-west-3b"]
+DEMO_VPC_PRIVATE_SUBNETS_CIDRS = ["10.0.0.0/28", "10.0.0.16/28"]
+DEMO_VPC_PUBLIC_SUBNETS_CIDRS  = ["10.0.0.32/28", "10.0.0.48/28"]
+
+# bastion host
+DEMO_BASTION_HOST_TYPE     = "t2.micro"
+DEMO_BASTION_HOST_KEY_NAME = "aws-key"
+DEMO_BASTION_HOST_AZ       = "eu-west-3a"
+
+# demo app
+DEMO_APP_EC2_TYPE     = "t2.micro"
+DEMO_APP_EC2_KEY_NAME = "aws-key"
+DEMO_APP_ASG_MIN_SIZE = 2
+DEMO_APP_ASG_MAX_SIZE = 5

prod/variables.tf

@@ -4,15 +4,11 @@ variable "REGION" {
   default = "eu-west-3"
 }
 
-variable "PROJECT_TAG" {
+variable "PROJECT_NAME" {
   type = string
 }
 
 # vpc
-variable "DEMO_VPC_NAME" {
-  type = string
-}
-
 variable "DEMO_VPC_CIDR" {
   type    = string
   default = "10.0.0.0/24"
@@ -36,10 +32,6 @@ variable "DEMO_BASTION_HOST_TYPE" {
   default = "t2.micro"
 }
 
-variable "DEMO_BASTION_HOST_NAME" {
-  type = string
-}
-
 variable "DEMO_BASTION_HOST_KEY_NAME" {
   type = string
 }