vpc.tf

# VPC 생성
resource "aws_vpc" "main" {
  cidr_block           = "10.0.0.0/16"
  enable_dns_support   = true
  enable_dns_hostnames = true
  tags = {
    Name = "main-vpc"
  }
}

# Public 서브넷 생성
resource "aws_subnet" "public" {
  vpc_id                  = aws_vpc.main.id
  cidr_block              = "10.0.1.0/24"
  map_public_ip_on_launch = true
  availability_zone       = "ap-northeast-2a"
  tags = {
    Name = "public-subnet"
  }
}

# Private 서브넷 생성 1
resource "aws_subnet" "private_a" {
  vpc_id            = aws_vpc.main.id
  cidr_block        = "10.0.2.0/24"
  availability_zone = "ap-northeast-2a"
  tags = {
    Name = "private-subnet-a"
  }
}

# Private 서브넷 생성 2
resource "aws_subnet" "private_b" {
  vpc_id            = aws_vpc.main.id
  cidr_block        = "10.0.3.0/24"
  availability_zone = "ap-northeast-2b"
  tags = {
    Name = "private-subnet-b"
  }
}

# 인터넷 게이트웨이 생성
resource "aws_internet_gateway" "main" {
  vpc_id = aws_vpc.main.id
  tags = {
    Name = "main-igw"
  }
}

# 라우팅 테이블 생성 (인터넷 게이트웨이 연결)
resource "aws_route_table" "main" {
  vpc_id = aws_vpc.main.id

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

  tags = {
    Name = "main-route-table"
  }
}

# Public 서브넷에 라우팅 테이블 연결
resource "aws_route_table_association" "public_association" {
  subnet_id      = aws_subnet.public.id
  route_table_id = aws_route_table.main.id
}

# Private 서브넷 1에 라우팅 테이블 연결
resource "aws_route_table_association" "private_association_a" {
  subnet_id      = aws_subnet.private_a.id
  route_table_id = aws_route_table.main.id
}

# Private 서브넷 2에 라우팅 테이블 연결
resource "aws_route_table_association" "private_association_b" {
  subnet_id      = aws_subnet.private_b.id
  route_table_id = aws_route_table.main.id
}