infrastructure/vpc.tf at develop · Sakuten/infrastructure · GitHub

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resource "aws_vpc" "main" {
  cidr_block = "10.10.0.0/16"
}

resource "aws_subnet" "main" {
  count             = "${var.az_count}"
  cidr_block        = "${cidrsubnet(aws_vpc.main.cidr_block, 8, count.index)}"
  availability_zone = "${data.aws_availability_zones.available.names[count.index]}"
  vpc_id            = "${aws_vpc.main.id}"
}

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

resource "aws_route_table" "r" {
  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" "a" {
  count          = "${var.az_count}"
  subnet_id      = "${element(aws_subnet.main.*.id, count.index)}"
  route_table_id = "${aws_route_table.r.id}"
}