Add bucket versioning status as an output

When creating replicated buckets, expose a versioning status output in
order to be able to create a dependency on replica buckets being ready
(versioning enabled). Otherwise applying replication rules targeting a
bucket which isn't fully set up may fail.

Author: kunickiaj

README.md

@@ -280,6 +280,7 @@ No modules.
 
 | Name | Description |
 |------|-------------|
+| <a name="output_aws_s3_bucket_versioning_status"></a> [aws\_s3\_bucket\_versioning\_status](#output\_aws\_s3\_bucket\_versioning\_status) | The versioning status of the bucket. Will be 'Enabled', 'Suspended', or 'Disabled'. |
 | <a name="output_s3_bucket_arn"></a> [s3\_bucket\_arn](#output\_s3\_bucket\_arn) | The ARN of the bucket. Will be of format arn:aws:s3:::bucketname. |
 | <a name="output_s3_bucket_bucket_domain_name"></a> [s3\_bucket\_bucket\_domain\_name](#output\_s3\_bucket\_bucket\_domain\_name) | The bucket domain name. Will be of format bucketname.s3.amazonaws.com. |
 | <a name="output_s3_bucket_bucket_regional_domain_name"></a> [s3\_bucket\_bucket\_regional\_domain\_name](#output\_s3\_bucket\_bucket\_regional\_domain\_name) | The bucket region-specific domain name. The bucket domain name including the region name, please refer here for format. Note: The AWS CloudFront allows specifying S3 region-specific endpoint when creating S3 origin, it will prevent redirect issues from CloudFront to S3 Origin URL. |

outputs.tf

@@ -57,3 +57,8 @@ output "s3_directory_bucket_arn" {
   description = "ARN of the directory bucket."
   value       = try(aws_s3_directory_bucket.this[0].arn, null)
 }
+
+output "aws_s3_bucket_versioning_status" {
+  description = "The versioning status of the bucket. Will be 'Enabled', 'Suspended', or 'Disabled'."
+  value       = try(aws_s3_bucket_versioning.this[0].versioning_configuration[0].status, null)
+}