public_subnet-gateway.tf

# public_subnet 1 생성
resource "aws_subnet" "public_subnet_1a" {
    vpc_id     = aws_vpc.vpc.id
    cidr_block = "10.10.1.0/28"
    availability_zone = "ap-northeast-2c"
    tags = {
        Name = "public_subnet_1a"
    }
}

# public_subnet 2 생성
resource "aws_subnet" "public_subnet_1b" {
    vpc_id     = aws_vpc.vpc.id
    cidr_block = "10.10.2.0/28"
    availability_zone = "ap-northeast-2b"
    tags = {
        Name = "public_subnet_1b"
    }
}

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

    tags = {
        Name = "Internet Gateway"
    }
}

# Route Table 생성
resource "aws_route_table" "public_route_1" {
  vpc_id = aws_vpc.vpc.id
  tags = {
    Name    = "Public-Route-1"
  }
}

resource "aws_route_table" "public_route_2" {
  vpc_id = aws_vpc.vpc.id
  tags = {
    Name    = "Public-Route-2"
  }
}

// route internet 연결
resource "aws_route" "internet_access_1" {
  route_table_id = aws_route_table.public_route_1.id
  destination_cidr_block = "0.0.0.0/0"
  gateway_id = aws_internet_gateway.igw.id
}

# Subnet Route 연결
resource "aws_route_table_association" "public_subnet_1" {
  subnet_id      = aws_subnet.public_subnet_1a.id
  route_table_id = aws_route_table.public_route_1.id
}

resource "aws_route_table_association" "public_subnet_2" {
  subnet_id      = aws_subnet.public_subnet_1b.id
  route_table_id = aws_route_table.public_route_2.id
}