website: private IP docs

Author: mitchellh

CHANGELOG.md

@@ -26,6 +26,7 @@ IMPROVEMENTS:
   * providers/aws: Security group rules can be updated without a
       destroy/create.
   * providers/aws: You can enable and disable dns settings for VPCs. [GH-172]
+  * providers/aws: Can specify a private IP address for `aws_instance` [GH-217]
 
 BUG FIXES:
 

website/source/docs/providers/aws/r/instance.html.markdown

@@ -32,6 +32,8 @@ The following arguments are supported:
    for EC2, use the security group name.
 * `subnet_id` - (Optional) The VPC Subnet ID to launch in.
 * `associate_public_ip_address` - (Optional) Associate a public ip address with an instance in a VPC.
+* `proviate_ip` - (Optional) Private IP address to associate with the
+     instance in a VPC.
 * `source_dest_check` - (Optional) Controls if traffic is routed to the instance when
   the destination address does not match the instance. Used for NAT or VPNs. Defaults false.
 * `user_data` - (Optional) The user data to provide when launching the instance.