add aws connection helper

controls/example.rb

@@ -8,7 +8,3 @@ describe aws_ec2(name: 'aws-inspec') do
   its('vpc_id') { should eq 'vpc-1234567' }
   its('subnet_id') { should eq 'subnet-1234567' }
 end
-
-describe aws_ec2(name: 'aws-opsworks-cm-serdar2') do
-  it { should_not be_running }
-end

libraries/aws_conn.rb

@@ -0,0 +1,23 @@
+# author: Christoph Hartmann
+
+class AWSConnection
+  def initialize
+    require 'aws-sdk'
+    opts = {
+      region: ENV['AWS_DEFAULT_REGION'],
+      credentials: Aws::Credentials.new(
+        ENV['AWS_ACCESS_KEY_ID'],
+        ENV['AWS_SECRET_ACCESS_KEY'],
+      ),
+    }
+    Aws.config.update(opts)
+  end
+
+  def ec2_resource
+    @ec2_resource ||= Aws::EC2::Resource.new
+  end
+
+  def ec2_client
+    @ec2_client ||= Aws::EC2::Client.new
+  end
+end

libraries/ec2.rb

@@ -4,7 +4,7 @@ require 'aws_conn'
 
 class Ec2 < Inspec.resource(1)
   name 'aws_ec2'
-  desc 'Returns information about an EC2 instance'
+  desc 'Verifies settings for an EC2 instance'
 
   example "
     describe aws_ec2('i-123456') do