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

@@ -288,6 +288,7 @@ No modules.
 | <a name="output_s3_bucket_lifecycle_configuration_rules"></a> [s3\_bucket\_lifecycle\_configuration\_rules](#output\_s3\_bucket\_lifecycle\_configuration\_rules) | The lifecycle rules of the bucket, if the bucket is configured with lifecycle rules. If not, this will be an empty string. |
 | <a name="output_s3_bucket_policy"></a> [s3\_bucket\_policy](#output\_s3\_bucket\_policy) | The policy of the bucket, if the bucket is configured with a policy. If not, this will be an empty string. |
 | <a name="output_s3_bucket_region"></a> [s3\_bucket\_region](#output\_s3\_bucket\_region) | The AWS region this bucket resides in. |
+| <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_website_domain"></a> [s3\_bucket\_website\_domain](#output\_s3\_bucket\_website\_domain) | The domain of the website endpoint, if the bucket is configured with a website. If not, this will be an empty string. This is used to create Route 53 alias records. |
 | <a name="output_s3_bucket_website_endpoint"></a> [s3\_bucket\_website\_endpoint](#output\_s3\_bucket\_website\_endpoint) | The website endpoint, if the bucket is configured with a website. If not, this will be an empty string. |
 | <a name="output_s3_directory_bucket_arn"></a> [s3\_directory\_bucket\_arn](#output\_s3\_directory\_bucket\_arn) | ARN of the directory bucket. |

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)
+}