Template · Messaging

Apache Kafka

Single-node Kafka 3.9 in KRaft mode (no ZooKeeper).

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What gets deployed

One service in the environment you pick, on the private network of the project.

Official apache/kafka:3.9.2 configured through KAFKA_* variables; the advertised listener is the service's private hostname.

Image: apache/kafka:3.9.2

Generated secrets never leave the platform; references are resolved on the private network. Anything marked required is asked for at deploy time.

Name	Value
KAFKA_NODE_ID	1
KAFKA_PROCESS_ROLES	broker,controller
KAFKA_LISTENERS	PLAINTEXT://0.0.0.0:9092,CONTROLLER://0.0.0.0:9093
KAFKA_ADVERTISED_LISTENERS	PLAINTEXT://${{self.SKIFFLY_PRIVATE_DOMAIN}}:9092
KAFKA_CONTROLLER_LISTENER_NAMES	CONTROLLER
KAFKA_LISTENER_SECURITY_PROTOCOL_MAP	CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT
KAFKA_CONTROLLER_QUORUM_VOTERS	1@localhost:9093
KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR	1
KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR	1
KAFKA_TRANSACTION_STATE_LOG_MIN_ISR	1
KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS	0
KAFKA_NUM_PARTITIONS	3
KAFKA_LOG_DIRS	/var/lib/kafka/data
KAFKA_BOOTSTRAP_SERVERS	${{self.SKIFFLY_PRIVATE_DOMAIN}}:9092

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Volumes, secrets and domain pre-wired. Runs on EU nodes, paid per minute from a prepaid balance.