ft: ZENKO-315 Allow CRR without versioning

lib/api/bucketPutReplication.js

@@ -41,8 +41,9 @@ function bucketPutReplication(authInfo, request, log, callback) {
                 if (err) {
                     return next(err);
                 }
-                // Replication requires that versioning is 'Enabled'.
+                // Replication requires that versioning is 'Enabled' unless it
-                if (!bucket.isVersioningEnabled(bucket)) {
+                // is an NFS bucket.
+                if (!bucket.isNFS() && !bucket.isVersioningEnabled(bucket)) {
                     return next(versioningNotEnabledError);
                 }
                 return next(null, config, bucket);

lib/metadata/ModelVersion.md

@@ -105,3 +105,16 @@ this._readLocationConstraint = readLocationConstraint || null;
 ### Usage
 
 Used to store default read location of the bucket
+
+## Model version 9
+
+### Properties Added
+
+```javascript
+this._isNFS = isNFS || null;
+```
+
+### Usage
+
+Used to determine whether the bucket is on NFS
+

lib/routes/routeBackbeat.js

@@ -706,8 +706,7 @@ function routeBackbeat(clientIP, request, response, log) {
                 return backbeatRoutes[request.method][request.resourceType]
                     [request.query.operation](request, response, log, next);
             }
-            const versioningConfig = bucketInfo.getVersioningConfiguration();
+            if (!bucketInfo.isNFS() && !bucketInfo.isVersioningEnabled()) {
-            if (!versioningConfig || versioningConfig.Status !== 'Enabled') {
                 log.debug('bucket versioning is not enabled', {
                     method: request.method,
                     bucketName: request.bucketName,