Get an error about node['ec2'] being nil

myRecipe.rb

file "/etc/chef/ohai/hints/ec2.json" do
  action :create
end

ohai "reload" do
  action :reload
end


execute "create and mount non provisioned EBS volumes" do
      environment ({
        'AWS_ACCESS_KEY_ID' => node["make-raid"]["aws_access_key"],
        'AWS_SECRET_ACCESS_KEY' => node["make-raid"]["aws_secret_key"],
        "AWS_REGION" => node["make-raid"]["aws_region"]
      })
      command "ruby #{normalEbsScriptPath} #{node['ec2']['instance_id']} #{volume_size}"
end