add publicly_accessible, update docs

builtin/providers/aws/resource_aws_rds_cluster_instance.go

@@ -54,6 +54,13 @@ func resourceAwsRDSClusterInstance() *schema.Resource {
                                 Computed: true,
                         },
 
+                        "publicly_accessible": &schema.Schema{
+                                Type:     schema.TypeBool,
+                                Optional: true,
+                                Default:  false,
+                                ForceNew: true,
+                        },
+
                         "instance_class": &schema.Schema{
                                 Type:     schema.TypeString,
                                 Required: true,
@@ -73,6 +80,7 @@ func resourceAwsRDSClusterInstanceCreate(d *schema.ResourceData, meta interface{
                 DBInstanceClass:     aws.String(d.Get("instance_class").(string)),
                 DBClusterIdentifier: aws.String(d.Get("cluster_identifier").(string)),
                 Engine:              aws.String("aurora"),
+                PubliclyAccessible:  aws.Bool(d.Get("publicly_accessible").(bool)),
                 Tags:                tags,
         }
 
@@ -154,6 +162,8 @@ func resourceAwsRDSClusterInstanceRead(d *schema.ResourceData, meta interface{})
                 d.Set("port", db.Endpoint.Port)
         }
 
+        d.Set("publicly_accessible", db.PubliclyAccessible)
+
         // Fetch and save tags
         arn, err := buildRDSARN(d, meta)
         if err != nil {

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

@@ -55,7 +55,6 @@ string.
 * `apply_immediately` - (Optional) Specifies whether any cluster modifications
      are applied immediately, or during the next maintenance window. Default is
      `false`. See [Amazon RDS Documentation for more information.](http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.DBInstance.Modifying.html)
-* `vpc_security_group_ids` - (Optional) List of VPC security groups to associate.
 
 ## Attributes Reference
 

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

@@ -60,8 +60,9 @@ and memory, see [Scaling Aurora DB Instances][4]. Aurora currently
   - db.r3.2xlarge
   - db.r3.4xlarge
   - db.r3.8xlarge
-
-.
+* `publicly_accessible` - (Optional) Bool to control if instance is publicly accessible.
+Default `false`. See the documentation on [Creating DB Instances][6] for more
+details on controlling this property.
 
 ## Attributes Reference
 
@@ -85,3 +86,4 @@ this instance is a read replica
 [3]: /docs/providers/aws/r/rds_cluster.html
 [4]: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Aurora.Managing.html
 [5]: /docs/configuration/resources.html#count
+[6]: http://docs.aws.amazon.com/fr_fr/AmazonRDS/latest/APIReference/API_CreateDBInstance.html