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// assembly-deployment-configuration-kafka-mirror-maker.adoc

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[id='assembly-kafka-mirror-maker-whitelist-{context}']

= Whitelist

You specify the list topics that the Kafka Mirror Maker has to mirror from the source to the target Kafka cluster in the KafkaMirrorMaker resource using the _whitelist_ option.
It allows any regular expression from the simplest case with a single topic name to complex patterns.
For example, you can mirror topics A and B using "A|B" or all topics using "*".
You can also pass multiple regular expressions separated by commas to the Kafka Mirror Maker.

include::proc-configuring-kafka-mirror-maker-whitelist.adoc[leveloffset=+1]