How to ignore the databases and tables from percona clustering

Actually we do not want to replicate all the databases and tables from the mysql server. Is there any flag available to set the ignore database and tables in conf file.

All the available replication filters existing in MySQL also apply to Galera replication. But you should use them with extra caution, since any data inconsistency inside the cluster is dangerous. If you replicate from MySQL instance to PXC cluster, I would suggest to apply filters on the master side.