To run the script make sure that you have the compiled jar file "java-kafka-consumer-0.0.1.jar" in the same directory as the shell script "consumer.sh". In that same directory create a "conf" directory and add an "application-.yaml" to that directory, where is an arbitrary name you want to give the Kafka environment you are consuming from. See the example YAML file, "application-dev.yaml" in this project's "conf" folder for an example of how to setup the file. In that YAML, all properties under "consumer" are Kafka/Confluent consumer properties as defined here.
When running the script you specify the options like show below:
consumer.sh --topic mytopic --days 1 --timeout 5 --partitions 1 --env dev
topic: the topic you want to produce to (required)
days: the number of days backward to consume from - used only if the group exists already (default is 0)
timeout: the number of seconds to wait without consuming a message before quitting (default is 5)
log: the number of partitions to give the topic if created by this program (default is 1)
env: the name of the environment (conf/application-<env>.yaml) to load