my updates

gistfile1.rb

require "fog"
require "nokogiri"

def name
@name ||= new_resource.name + "."
end

def value
@value ||= new_resource.value
end

def type
@type ||= new_resource.type
end

def ttl
@ttl ||= new_resource.ttl
end

def zone
@zone ||= Fog::DNS.new({ :provider => "aws",
                         :aws_access_key_id => new_resource.aws_access_key_id,
                         :aws_secret_access_key => new_resource.aws_secret_access_key }
                       ).zones.get( new_resource.zone_id )
end

def create
begin
  zone.records.create({ :name => name,
                        :value => value,
                        :type => type,
                        :ttl => ttl })
rescue Excon::Errors::BadRequest => e
  Chef::Log.info Nokogiri::XML( e.response.body ).xpath( "//xmlns:Message" ).text
end
end

action :create do
  record = zone.records.all.select do |record|
    record.name == name
  end.first

  if record.nil?
    create
    Chef::Log.info "Record created: #{name}"
  elsif value != record.value.first
    record.destroy
    create
    Chef::Log.info "Record modified: #{name}"
  end
end

action :append do
  record = zone.records.all.select do |record|
    record.name == name
  end.first

  if record.nil?
    create
    Chef::Log.info "Record created: #{name}"
  elsif value != record.value.first
    record.value << value
    puts record.inspect
    record.save()
#    create
    Chef::Log.info "Record modified: #{name}"
  end
end