Can't wait for Apache Kafka 2.8 to get your hands on zookeeperless Kafka? Here are some steps to try it out.
$ git clone https://github.com/apache/kafka
$ cd kafka
$ ./gradlew jar
$ ./bin/kafka-storage.sh format --config ./config/raft-combined.properties --cluster-id $(./bin/kafka-storage.sh random-uuid)
$ ./bin/kafka-server-start.sh ./config/raft-combined.properties