Spec Test

gistfile1.txt

# frozen_string_literal: true
            
require 'spec_helper'
require 'facter'
require 'facter/application'
            
describe 'test Oracle region fact' do
  # subject { Facter.fact(:region) }
            
  ips = { 
    '10.105.64.1' => { 'region' => 'chicago' },
    '10.105.128.1' => { 'region' => 'ashburn' },
    '10.105.222.1' => { 'region' => 'oracle' },
    '1.2.3.4' => { 'region' => 'other' },
  }         
            
  context 'checking regions locations' do
    ips.each do |ip, region|
      context "checking region #{region}" do
        before(:each) do
          # perform any action that should be run before every test
          Facter.clear
          allow(Facter.fact(:networking)).to receive(:value).and_return(ip)
        end 
        it "uses the built-in facts #{ip} to return the application hash for #{region['region']}" do
          expect(Facter.fact(:region).value).to eq('chicago')
        end 
      end 
    end  
  end       

require 'ipaddr'

Facter.add('region') do
  confine kernel: 'Linux'

  setcode do
    networks = { '10.105.64.0/19'  => { 'name' => 'chicago' },
                 '10.105.128.0/17' => { 'name' => 'ashburn' },
                 '10.105.0.0/16' => { 'name' => 'oracle' },
                 '0.0.0.0/0' => { 'name' => 'other' } }

    region = ''
    my_ip = Facter.value('networking')['ip']

    # loop over the networks hash and see if the IP we're looking for
    # is defined in the hash.
    networks.each do |key, value|
      # Get the subnet that we're checking from the key name.
      # https://stackoverflow.com/questions/3518365/find-out-if-an-ip-is-within-a-range-of-ips#3519831
      if IPAddr.new(key).include? my_ip
        region = value['name']
        break
      end
    end
    region
  end
end