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Add Tags and refactor terraform script #47

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91 changes: 50 additions & 41 deletions scripts/aws/main.tf
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Original file line number Diff line number Diff line change
Expand Up @@ -2,73 +2,84 @@ provider "aws" {
region = var.aws_region
}

# VPC
data "aws_availability_zones" "available" {
state = "available"
}

resource "aws_vpc" "custom_vpc" {
cidr_block = var.vpc_cidr
enable_dns_support = true
enable_dns_hostnames = true

tags = {
Name = var.vpc_name
Owner = var.vpc_owner
}
tags = merge(
var.common_tags,
{
Name = var.vpc_name
Owner = var.vpc_owner
}
)
}

# Internet Gateway
resource "aws_internet_gateway" "igw" {
vpc_id = aws_vpc.custom_vpc.id

tags = {
Name = "${var.vpc_name}-igw"
Owner = var.vpc_owner
}
tags = merge(
var.common_tags,
{
Name = "${var.vpc_name}-igw"
Owner = var.vpc_owner
}
)
}

# Public Subnet 1
resource "aws_subnet" "public_subnet_1" {
vpc_id = aws_vpc.custom_vpc.id
cidr_block = var.public_subnet_cidr_1
availability_zone = var.public_subnet_az_1
availability_zone = data.aws_availability_zones.available.names[0]
map_public_ip_on_launch = true

tags = {
Name = "${var.vpc_name}-public-subnet-1"
Owner = var.vpc_owner
}
tags = merge(
var.common_tags,
{
Name = "${var.vpc_name}-public-subnet-1"
Owner = var.vpc_owner
}
)
}

# Public Subnet 2
resource "aws_subnet" "public_subnet_2" {
vpc_id = aws_vpc.custom_vpc.id
cidr_block = var.public_subnet_cidr_2
availability_zone = var.public_subnet_az_2
availability_zone = data.aws_availability_zones.available.names[1]
map_public_ip_on_launch = true

tags = {
Name = "${var.vpc_name}-public-subnet-2"
Owner = var.vpc_owner
}
tags = merge(
var.common_tags,
{
Name = "${var.vpc_name}-public-subnet-2"
Owner = var.vpc_owner
}
)
}

# Public Route Table for Routing to Internet Gateway
resource "aws_route_table" "public_rt" {
vpc_id = aws_vpc.custom_vpc.id

tags = {
Name = "${var.vpc_name}-public-rt"
Owner = var.vpc_owner
}
tags = merge(
var.common_tags,
{
Name = "${var.vpc_name}-public-rt"
Owner = var.vpc_owner
}
)
}

# Route for Internet Access
resource "aws_route" "public_internet_access" {
route_table_id = aws_route_table.public_rt.id
destination_cidr_block = "0.0.0.0/0"
gateway_id = aws_internet_gateway.igw.id
depends_on = [aws_internet_gateway.igw]
}

# Associate Route Table with Public Subnets
resource "aws_route_table_association" "public_assoc_1" {
subnet_id = aws_subnet.public_subnet_1.id
route_table_id = aws_route_table.public_rt.id
Expand All @@ -79,7 +90,6 @@ resource "aws_route_table_association" "public_assoc_2" {
route_table_id = aws_route_table.public_rt.id
}

# Security Group for SSH Access
resource "aws_security_group" "allow_ssh" {
name = "allow_ssh"
description = "Allow SSH access from anywhere"
Expand All @@ -89,29 +99,30 @@ resource "aws_security_group" "allow_ssh" {
from_port = 22
to_port = 22
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"] # Allow SSH from anywhere
cidr_blocks = ["0.0.0.0/0"]
}

egress {
from_port = 0
to_port = 0
protocol = "-1" # Allow all outbound traffic
protocol = "-1"
cidr_blocks = ["0.0.0.0/0"]
}

tags = {
Name = "Allow SSH"
Owner = var.vpc_owner
}
tags = merge(
var.common_tags,
{
Name = "Allow SSH"
Owner = var.vpc_owner
}
)
}

# Output the VPC ID
output "vpc_id" {
description = "The ID of the custom VPC"
value = aws_vpc.custom_vpc.id
}

# Output the Public Subnets IDs
output "public_subnet_id_1" {
description = "The ID of the first public subnet"
value = aws_subnet.public_subnet_1.id
Expand All @@ -122,9 +133,7 @@ output "public_subnet_id_2" {
value = aws_subnet.public_subnet_2.id
}

# Output the Security Group ID
output "security_group_id" {
description = "The ID of the security group"
value = aws_security_group.allow_ssh.id
}

19 changes: 8 additions & 11 deletions scripts/aws/vars.tf
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Original file line number Diff line number Diff line change
Expand Up @@ -34,15 +34,12 @@ variable "public_subnet_cidr_2" {
default = "10.0.2.0/24"
}

variable "public_subnet_az_1" {
description = "Availability Zone for the first public subnet"
type = string
default = "ap-south-1a"
variable "common_tags" {
description = "Common tags for all resources"
type = map(string)
default = {
"app-code" = "OSUS-002"
"service-phase" = "dev"
"cost-center" = "136"
}
}

variable "public_subnet_az_2" {
description = "Availability Zone for the second public subnet"
type = string
default = "ap-south-1b"
}