add mount it to public link storage

storage/pkg/command/gateway.go

@@ -227,6 +227,7 @@ func rules(cfg *config.Config, logger log.Logger) map[string]map[string]interfac
 		cfg.Reva.StorageUsers.MountPath:      {"address": cfg.Reva.StorageUsers.Endpoint},
 		cfg.Reva.StorageUsers.MountID + ".*": {"address": cfg.Reva.StorageUsers.Endpoint},
 		cfg.Reva.StoragePublicLink.MountPath: {"address": cfg.Reva.StoragePublicLink.Endpoint},
+		cfg.Reva.StoragePublicLink.MountID:   {"address": cfg.Reva.StoragePublicLink.MountID},
 		// public link storage returns the mount id of the actual storage
 		// medatada storage not part of the global namespace
 	}

storage/pkg/command/storagepubliclink.go

@@ -101,6 +101,7 @@ func storagePublicLinkConfigFromStruct(c *cli.Context, cfg *config.Config) map[s
 			"services": map[string]interface{}{
 				"publicstorageprovider": map[string]interface{}{
 					"mount_path":   cfg.Reva.StoragePublicLink.MountPath,
+					"mount_id":     cfg.Reva.StoragePublicLink.MountID,
 					"gateway_addr": cfg.Reva.Gateway.Endpoint,
 				},
 				"authprovider": map[string]interface{}{