Add Output Of Subnet ARNs (#242)

* Add Output Of Subnet ARNs

Facilitates resource access manager, subnet sharing across accounts

* Update Readme For Subnet ARN Output

README.md

@@ -347,6 +347,7 @@ Terraform version 0.10.3 or newer is required for this module to work.
 | database\_route\_table\_ids | List of IDs of database route tables |
 | database\_subnet\_group | ID of database subnet group |
 | database\_subnets | List of IDs of database subnets |
+| database\_subnet\_arns | List of ARNs of database subnets |
 | database\_subnets\_cidr\_blocks | List of cidr_blocks of database subnets |
 | default\_network\_acl\_id | The ID of the default network ACL |
 | default\_route\_table\_id | The ID of the default route table |
@@ -365,27 +366,32 @@ Terraform version 0.10.3 or newer is required for this module to work.
 | elasticache\_subnet\_group | ID of elasticache subnet group |
 | elasticache\_subnet\_group\_name | Name of elasticache subnet group |
 | elasticache\_subnets | List of IDs of elasticache subnets |
+| elasticache\_subnet\_arns | List of ARNs of elasticache subnets |
 | elasticache\_subnets\_cidr\_blocks | List of cidr_blocks of elasticache subnets |
 | igw\_id | The ID of the Internet Gateway |
 | intra\_network\_acl\_id | ID of the intra network ACL |
 | intra\_route\_table\_ids | List of IDs of intra route tables |
 | intra\_subnets | List of IDs of intra subnets |
+| intra\_subnet\_arns | List of ARNs of intra subnets |
 | intra\_subnets\_cidr\_blocks | List of cidr_blocks of intra subnets |
 | nat\_ids | List of allocation ID of Elastic IPs created for AWS NAT Gateway |
 | nat\_public\_ips | List of public Elastic IPs created for AWS NAT Gateway |
 | natgw\_ids | List of NAT Gateway IDs |
 | private\_network\_acl\_id | ID of the private network ACL |
 | private\_route\_table\_ids | List of IDs of private route tables |
 | private\_subnets | List of IDs of private subnets |
+| private\_subnet\_arns | List of ARNs of private subnets |
 | private\_subnets\_cidr\_blocks | List of cidr_blocks of private subnets |
 | public\_network\_acl\_id | ID of the public network ACL |
 | public\_route\_table\_ids | List of IDs of public route tables |
 | public\_subnets | List of IDs of public subnets |
+| public\_subnet\_arns | List of ARNs of public subnets |
 | public\_subnets\_cidr\_blocks | List of cidr_blocks of public subnets |
 | redshift\_network\_acl\_id | ID of the redshift network ACL |
 | redshift\_route\_table\_ids | List of IDs of redshift route tables |
 | redshift\_subnet\_group | ID of redshift subnet group |
 | redshift\_subnets | List of IDs of redshift subnets |
+| redshift\_subnet\_arns | List of ARNs of redshift subnets |
 | redshift\_subnets\_cidr\_blocks | List of cidr_blocks of redshift subnets |
 | vgw\_id | The ID of the VPN Gateway |
 | vpc\_arn | The ARN of the VPC |

outputs.tf

@@ -73,6 +73,11 @@ output "private_subnets" {
   value       = ["${aws_subnet.private.*.id}"]
 }
 
+output "private_subnet_arns" {
+  description = "List of ARNs of private subnets"
+  value       = ["${aws_subnet.private.*.arn}"]
+}
+
 output "private_subnets_cidr_blocks" {
   description = "List of cidr_blocks of private subnets"
   value       = ["${aws_subnet.private.*.cidr_block}"]
@@ -83,6 +88,11 @@ output "public_subnets" {
   value       = ["${aws_subnet.public.*.id}"]
 }
 
+output "public_subnet_arns" {
+  description = "List of ARNs of public subnets"
+  value       = ["${aws_subnet.public.*.arn}"]
+}
+
 output "public_subnets_cidr_blocks" {
   description = "List of cidr_blocks of public subnets"
   value       = ["${aws_subnet.public.*.cidr_block}"]
@@ -93,6 +103,11 @@ output "database_subnets" {
   value       = ["${aws_subnet.database.*.id}"]
 }
 
+output "database_subnet_arns" {
+  description = "List of ARNs of database subnets"
+  value       = ["${aws_subnet.database.*.arn}"]
+}
+
 output "database_subnets_cidr_blocks" {
   description = "List of cidr_blocks of database subnets"
   value       = ["${aws_subnet.database.*.cidr_block}"]
@@ -108,6 +123,11 @@ output "redshift_subnets" {
   value       = ["${aws_subnet.redshift.*.id}"]
 }
 
+output "redshift_subnet_arns" {
+  description = "List of ARNs of redshift subnets"
+  value       = ["${aws_subnet.redshift.*.arn}"]
+}
+
 output "redshift_subnets_cidr_blocks" {
   description = "List of cidr_blocks of redshift subnets"
   value       = ["${aws_subnet.redshift.*.cidr_block}"]
@@ -123,6 +143,11 @@ output "elasticache_subnets" {
   value       = ["${aws_subnet.elasticache.*.id}"]
 }
 
+output "elasticache_subnet_arns" {
+  description = "List of ARNs of elasticache subnets"
+  value       = ["${aws_subnet.elasticache.*.arn}"]
+}
+
 output "elasticache_subnets_cidr_blocks" {
   description = "List of cidr_blocks of elasticache subnets"
   value       = ["${aws_subnet.elasticache.*.cidr_block}"]
@@ -133,6 +158,11 @@ output "intra_subnets" {
   value       = ["${aws_subnet.intra.*.id}"]
 }
 
+output "intra_subnet_arns" {
+  description = "List of ARNs of intra subnets"
+  value       = ["${aws_subnet.intra.*.arn}"]
+}
+
 output "intra_subnets_cidr_blocks" {
   description = "List of cidr_blocks of intra subnets"
   value       = ["${aws_subnet.intra.*.cidr_block}"]