main.tf

provider "aws" {
  region = "us-west-2"
}

data "aws_availability_zones" "available" {}

resource "aws_vpc" "main" {
  cidr_block = "10.0.0.0/16"
}

resource "aws_subnet" "public" {
  count             = 2
  vpc_id            = aws_vpc.main.id
  cidr_block        = "10.0.${count.index}.0/24"
  availability_zone = data.aws_availability_zones.available.names[0]
  map_public_ip_on_launch = true
}

resource "aws_subnet" "private" {
  count             = 2
  vpc_id            = aws_vpc.main.id
  cidr_block        = "10.0.${count.index + 2}.0/24"
  availability_zone = data.aws_availability_zones.available.names[1]
}

resource "aws_internet_gateway" "gw" {
  vpc_id = aws_vpc.main.id
}

resource "aws_route_table" "public" {
  vpc_id = aws_vpc.main.id

  route {
    cidr_block = "0.0.0.0/0"
    gateway_id = aws_internet_gateway.gw.id
  }
}

resource "aws_route_table_association" "public" {
  count          = 2
  subnet_id      = aws_subnet.public[count.index].id
  route_table_id = aws_route_table.public.id
}

resource "aws_security_group" "allow_http" {
  name        = "allow_http"
  description = "Allow HTTP inbound traffic"
  vpc_id      = aws_vpc.main.id

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

  egress {
    from_port   = 0
    to_port     = 0
    protocol    = "-1"
    cidr_blocks = ["0.0.0.0/0"]
  }
}

resource "aws_instance" "web" {
  ami                    = "ami-0c94855ba95c574c8" # This is an Amazon Linux 2 AMI. Replace with the appropriate AMI ID for your region.
  instance_type          = "t2.micro"
  subnet_id              = aws_subnet.public[0].id
  vpc_security_group_ids = [aws_security_group.allow_http.id]

  user_data = <<-EOF
              #!/bin/bash
              yum install -y nginx
              systemctl start nginx
              systemctl enable nginx
              echo "Hello, World" > /usr/share/nginx/html/index.html
              EOF

  tags = {
    Name = "nginx-server"
  }
}

# CodeDeploy and CodePipeline resources would go here, but they require additional setup outside of Terraform.