scottslowe-learning-tools/terraform/aws/simple-module/modules/vpc/main.tf

# Create a new VPC
resource "aws_vpc" "vpc" {
  cidr_block           = "${var.vpc_cidr_block}"
  enable_dns_hostnames = "${var.vpc_dns_hostnames}"
  enable_dns_support   = "${var.vpc_dns_support}"
}

# Create a public subnet in the new VPC
resource "aws_subnet" "subnet" {
  vpc_id                  = "${aws_vpc.vpc.id}"
  cidr_block              = "${var.subnet_cidr_block}"
  map_public_ip_on_launch = "${var.subnet_map_pub_ip}"
}

# Create a new Internet gateway
resource "aws_internet_gateway" "gateway" {
  vpc_id = "${aws_vpc.vpc.id}"
}

# Create a route table for the new VPC
resource "aws_route_table" "routes" {
  vpc_id = "${aws_vpc.vpc.id}"
}

# Create a route in new route table
resource "aws_route" "default_route" {
  route_table_id         = "${aws_route_table.routes.id}"
  destination_cidr_block = "0.0.0.0/0"
  gateway_id             = "${aws_internet_gateway.gateway.id}"
}

# Associate route table with subnet in VPC
resource "aws_route_table_association" "rte_tbl_assoc" {
  subnet_id      = "${aws_subnet.subnet.id}"
  route_table_id = "${aws_route_table.routes.id}"
}