Add associate_public_ip_address as an attribute of the aws_instance resource

builtin/providers/aws/resource_aws_instance.go

@@ -34,12 +34,18 @@ func resource_aws_instance_create(
 		userData = attr.NewExtra.(string)
 	}
 
+	associatePublicIPAddress := false
+	if attr, ok := d.Attributes["associate_public_ip_address"]; ok {
+		associatePublicIPAddress = attr.New != "" && attr.New != "false"
+	}
+
 	// Build the creation struct
 	runOpts := &ec2.RunInstances{
 		ImageId:                  rs.Attributes["ami"],
 		InstanceType:             rs.Attributes["instance_type"],
 		KeyName:                  rs.Attributes["key_name"],
 		SubnetId:                 rs.Attributes["subnet_id"],
+		AssociatePublicIpAddress: associatePublicIPAddress,
 		UserData:                 []byte(userData),
 	}
 	if raw := flatmap.Expand(rs.Attributes, "security_groups"); raw != nil {
@@ -195,6 +201,7 @@ func resource_aws_instance_diff(
 			"subnet_id":                   diff.AttrTypeCreate,
 			"source_dest_check":           diff.AttrTypeUpdate,
 			"user_data":                   diff.AttrTypeCreate,
+			"associate_public_ip_address": diff.AttrTypeCreate,
 		},
 
 		ComputedAttrs: []string{

builtin/providers/aws/resource_aws_instance_test.go

@@ -252,5 +252,6 @@ resource "aws_instance" "foo" {
 	ami = "ami-4fccb37f"
 	instance_type = "m1.small"
 	subnet_id = "${aws_subnet.foo.id}"
+	associate_public_ip_address = true
 }
 `