Module: RubyCfn::VPC

Defined in:
lib/compound/vpc.rb

Class Method Summary collapse

Class Method Details

.[](prefix, suffix, &block) ⇒ Object 



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# File 'lib/compound/vpc.rb', line 3

def self.[](prefix, suffix, &block)
  Module.new do
    extend ActiveSupport::Concern

    included do

      def validate_instance_tenancy(value)
        unless ["", 'default', 'dedicated'].include? value
          raise "Expected instance_tenancy to be within `default` or `dedicated`. Received `#{value}`"
        end
        value
      end

      variable :cidr_block,
               default: "10.0.0.0/16" 
      variable :enable_dns_support,
               default: true
      variable :enable_dns_hostnames,
               default: true
      variable :instance_tenancy,
               filter: :validate_instance_tenancy

      # TODO: Move to separate compound resource
      # variable :ipv6,
      #          default: false
      # variable :subnets,
      #          default: 3
      # variable :subnet_ip_addresses,
      #          default: 256

      yield self if block_given? # Variable overrides

      resource "#{prefix}_vpc#{suffix}",
               type: "AWS::EC2::VPC" do |r, index|
        r.property(:cidr_block) { cidr_block }
        r.property(:enable_dns_support) { enable_dns_support }
        r.property(:enable_dns_hostnames) { enable_dns_hostnames }
        r.property(:instance_tenancy) { instance_tenancy } unless instance_tenancy.empty?
      end

      resource "#{prefix}_internet_gateway#{suffix}",
               type: "AWS::EC2::InternetGateway"

      resource "#{prefix}_route#{suffix}",
               type: "AWS::EC2::Route" do |r, index|
        r.property(:destination_cidr_block) { "0.0.0.0/0" }
        r.property(:gateway_id) { "#{prefix}_internet_gateway#{suffix}".cfnize.ref }
        r.property(:route_table_id) { "#{prefix}_route_table#{suffix}".cfnize.ref }
      end

      resource "#{prefix}_route_table#{suffix}",
               type: "AWS::EC2::RouteTable" do |r, index|
        r.property(:vpc_id) { "#{prefix}_vpc#{suffix}".cfnize.ref }
      end

      resource "#{prefix}_vpc_gateway_attachment#{suffix}",
               type: "AWS::EC2::VPCGatewayAttachment" do |r, index|
        r.property(:internet_gateway_id) { "#{prefix}_internet_gateway#{suffix}".cfnize.ref }
        r.property(:vpc_id) { "#{prefix}_vpc#{suffix}".cfnize.ref }
      end

      # TODO: Move to separate compound resource
      #subnets.times do |i|
      #  resource "#{prefix}_subnet#{suffix}#{i == 0 ? "" : i+1}",
      #           type: "AWS::EC2::Subnet",
      #           compound: true do |r, index|
      #    r.property(:vpc_id) { "#{prefix}_vpc#{suffix}".cfnize.ref }
      #    r.property(:cidr_block) { ["#{prefix}_vpc#{suffix}".cfnize.ref("CidrBlock"), subnets.to_s, ((Math.log(subnet_ip_addresses)/Math.log(2)).floor).to_s].fncidr.fnselect(i) }
      #    #if ipv6 == "true"
      #    #  r.property(:ipv6_cidr_block) do
      #    #    .. todo ..
      #    #  end
      #    #end
      #  end
      #end

      #if ipv6 == "true"
      #  resource "#{prefix}_ipv6_cidr_block#{suffix}",
      #           type: "AWS::EC2::VPCCidrBlock" do |r, index|
      #    r.property(:vpc_id) { "#{prefix}_vpc#{suffix}".cfnize.ref }
      #    r.property(:amazon_provided_ipv6_cidr_block) { true }
      #  end
      #end
    end
  end
end