100daysofdevops

# Private Subnet
resource "aws_subnet" "private_subnet" {
  count             = 2
  cidr_block        = "${var.private_cidrs[count.index]}"
  vpc_id            = "${aws_vpc.main.id}"
  availability_zone = "${data.aws_availability_zones.available.names[count.index]}"

  tags {
    Name = "my-test-private-subnet.${count.index + 1}"
  }

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# Public Subnet
resource "aws_subnet" "public_subnet" {
  count                   = 2
  cidr_block              = "${var.public_cidrs[count.index]}"
  vpc_id                  = "${aws_vpc.main.id}"
  map_public_ip_on_launch = true
  availability_zone       = "${data.aws_availability_zones.available.names[count.index]}"

  tags {
    Name = "my-test-public-subnet.${count.index + 1}"

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# Private Route Table

resource "aws_default_route_table" "private_route" {
  default_route_table_id = "${aws_vpc.main.default_route_table_id}"

  tags {
    Name = "my-private-route-table"
  }
}

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# Public Route Table

resource "aws_route_table" "public_route" {
  vpc_id = "${aws_vpc.main.id}"

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

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# Creating Internet Gateway

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

  tags {
    Name = "my-test-igw"
  }
}

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# VPC Creation

resource "aws_vpc" "main" {
  cidr_block           = "${var.vpc_cidr}"
  enable_dns_hostnames = true
  enable_dns_support   = true

  tags {
    Name = "my-test-vpc"
  }

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# Query all avilable Availibility Zone
data "aws_availability_zones" "available" {}

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resource "aws_instance" "test_instance" {
  count = "${var.instance_count}"
  ami = "${data.aws_ami.centos.id}"
  instance_type = "${var.instance_type}"
  key_name = "${aws_key_pair.mytest-key.id}"
  vpc_security_group_ids = ["${var.security_group}"]
  subnet_id = "${element(var.subnet_mask, count.index )}"
  user_data = "${data.template_file.user-init.rendered}"

  tags {

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#!/bin/bash
yum -y install httpd
service httpd start
chkconfig httpd on

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data "template_file" "user-init" {
  template = "${file("${path.module}/userdata.tpl")}"
}