Spring Boot / Spring Kafka producer configuration for Confluent Cloud

application-confluent-cloud.yml

spring:
  kafka:
    bootstrap-servers: ${CLUSTER_BOOTSTRAP_SERVERS}
    properties:
      ssl.endpoint.identification.algorithm: https
      sasl.mechanism: PLAIN
      request.timeout.ms: 20000
      security.protocol: SASL_SSL
      retry.backoff.ms: 500
      sasl.jaas.config: org.apache.kafka.common.security.plain.PlainLoginModule required username='${CLUSTER_API_KEY}' password='${CLUSTER_API_SECRET}';

      # Schema Registry specific settings
      schema.registry.url: ${SR_URL}
      basic.auth.credentials.source: USER_INFO
      schema.registry.basic.auth.user.info: ${SR_API_KEY}:${SR_API_SECRET}