updating init for private_ip_address

playbooks/ec2.ini

@@ -32,7 +32,7 @@ destination_variable = public_dns_name
 # this to 'ip_address' will return the public IP address. For instances in a
 # private subnet, this should be set to 'private_ip_address', and Ansible must
 # be run from with EC2.
-vpc_destination_variable = ip_address
+vpc_destination_variable = private_ip_address
 
 # To tag instances on EC2 with the resource records that point to them from
 # Route53, uncomment and set 'route53' to True.