main.tf

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

resource "aws_subnet" "public" {
  vpc_id            = aws_vpc.main.id
  cidr_block        = "10.0.1.0/24"
  map_public_ip_on_launch = true
}

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

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

resource "aws_route_table_association" "public" {
  subnet_id      = aws_subnet.public.id
  route_table_id = aws_route_table.public.id
}

# Security Group
resource "aws_security_group" "web_sg" {
  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"]
  }
}

# EC2 Instance
resource "aws_instance" "web" {
  ami           = "ami-0c55b159cbfafe1f0" # Amazon Linux 2 AMI
  instance_type = "t2.micro"
  subnet_id     = aws_subnet.public.id
  security_groups = [aws_security_group.web_sg.name]

  user_data = <<-EOF
              #!/bin/bash
              yum update -y
              yum install -y nginx
              systemctl start nginx
              systemctl enable nginx
              EOF

  tags = {
    Name = "WebServer"
  }
}

# S3 Bucket with files
resource "aws_s3_bucket" "web_content" {
  bucket = "web-content-backup-bucket"
  acl    = "private"

  tags = {
    Name = "WebContentBucket"
  }
}

resource "aws_s3_bucket_object" "example_file" {
  bucket = aws_s3_bucket.web_content.bucket
  key    = "index.html"
  source = "index.html"
}