In your application.yml file…you can define like this …
bootstrap-servers: ${BOOTSTRAP_SERVERS:[http://localhost:9092](http://localhost:9092)}
listener:
poll-timeout: 3000
log-container-config: true
concurrency: ${PIPELINE_ACTION_CONSUMER_MBRS:3}
consumer:
group-id: group-id-service-consumer-grp
auto-offset-reset: latest
key-deserializer: org.apache.kafka.common.serialization.StringDeserializer
value-deserializer: org.apache.kafka.common.serialization.StringDeserializer
producer:
key-serializer: org.apache.kafka.common.serialization.StringSerializer
value-serializer: org.apache.kafka.common.serialization.StringSerializer
retries: 2```