Resources Block

• Resources Block
  • Resource-1: Create VPC
  • Resource-2: Create VPC
  • Resource-3: Create VPC
  • Resource-4: Create VPC
  • Resource-5: Create VPC
  • Resource-6: Create VPC
  • Resource-7: Create VPC
  • Resource-8: Create VPC
  • Resource-9: Create VPC

Resource-1: Create VPC

resource "aws_vpc" "vpc-dev" {
  cidr_block = "10.0.0.0/16"
  tags = {
    "Name" = "vpc-dev"
  }
}

Resource-2: Create Subnets

resource "aws_subnet" "vpc-dev-public-subnet-1" {
  vpc_id                  = aws_vpc.vpc-dev.id
  cidr_block              = "10.0.1.0/24"
  availability_zone       = "us-east-1a"
  map_public_ip_on_launch = true
}

Resource-3: Internet Gateway

resource "aws_internet_gateway" "vpc-dev-igw" {
  vpc_id = aws_vpc.vpc-dev.id
}

Resource-4: Create Route Table

resource "aws_route_table" "vpc-dev-public-route-table" {
  vpc_id = aws_vpc.vpc-dev.id
}

Resource-5: Create Route in Route Table for Internet Access

resource "aws_route" "vpc-dev-public-route" {
  route_table_id         = aws_route_table.vpc-dev-public-route-table.id
  destination_cidr_block = "0.0.0.0/0"
  gateway_id             = aws_internet_gateway.vpc-dev-igw.id
}

Resource-6: Associate the Route Table with the Subnet

resource "aws_route_table_association" "vpc-dev-public-route-table-associate" {
  route_table_id = aws_route_table.vpc-dev-public-route-table.id
  subnet_id      = aws_subnet.vpc-dev-public-subnet-1.id
}

Resource-7: Create Security Group

resource "aws_security_group" "dev-vpc-sg" {
  name        = "dev-vpc-default-sg"
  description = "Dev VPC Default Security Group"
  vpc_id      = aws_vpc.vpc-dev.id

  ingress {
    description = "Allow Port 22"
    from_port   = 22
    to_port     = 22
    protocol    = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }

  ingress {
    description = "Allow Port 80"
    from_port   = 80
    to_port     = 80
    protocol    = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }

  egress {
    description = "Allow all IP and Ports Outbound"
    from_port   = 0
    to_port     = 0
    protocol    = "-1"
    cidr_blocks = ["0.0.0.0/0"]
  }
}

Resource-8: Create EC2 Instance

resource "aws_instance" "my-ec2-vm" {
  ami                    = "ami-047a51fa27710816e" ## Amazon Linux
  instance_type          = "t2.micro"
  key_name               = "terraform-key"
  subnet_id              = aws_subnet.vpc-dev-public-subnet-1.id
  vpc_security_group_ids = [aws_security_group.dev-vpc-sg.id]
  ##user_data = file("apache-install.sh")
  user_data = <<-EOF
    ##!/bin/bash
    sudo yum update -y
    sudo yum install httpd -y
    sudo systemctl enable httpd
    sudo systemctl start httpd
    echo "<h1>Welcome to StackSimplify ! AWS Infra created using Terraform in us-east-1 Region</h1>" > /var/www/html/index.html
    EOF
  tags = {
    "Name" = "myec2vm"
  }    
}

Resource-9: Create Elastic IP

resource "aws_eip" "my-eip" {
  instance = aws_instance.my-ec2-vm.id
  vpc      = true
  ## Meta-Argument
  depends_on = [aws_internet_gateway.vpc-dev-igw]
}