Dbr 3198 updat docker compose #9
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| # Mendix Business Events Module | ||
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| ## Overview | ||
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| This repository provides Docker Compose configurations to help you quickly set up Apache Kafka for use with Mendix Business Events. Both setups now use Apache Kafka 3.8.0 with KRaft mode, eliminating the need for Zookeeper and providing built-in Change Data Capture (CDC) capabilities. | ||
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| ## What's Inside | ||
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| ### local-setup | ||
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| A simple single-node Kafka setup designed for local development and testing. Perfect for getting started with Mendix Business Events on your local machine. | ||
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| ### cluster-example | ||
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| A 3-node Kafka cluster configuration that demonstrates a more production-like setup with high availability and replication. | ||
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| # whats new | ||
| This setup now uses **Apache Kafka 3.8.0** with **KRaft mode**, which means: | ||
| - No Zookeeper required - simpler architecture and easier management | ||
| - Built-in CDC support through Kafka Connect and Debezium | ||
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| --- | ||
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| services: | ||
| kafka-1: | ||
| container_name: kafka-1 | ||
| hostname: kafka-1 | ||
| image: apache/kafka:3.8.0 | ||
| network_mode: host | ||
| environment: | ||
| KAFKA_NODE_ID: 1 | ||
| KAFKA_PROCESS_ROLES: broker,controller | ||
| KAFKA_LISTENERS: PLAINTEXT://localhost:19092,CONTROLLER://localhost:19093 | ||
| KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://localhost:19092 | ||
| KAFKA_CONTROLLER_LISTENER_NAMES: CONTROLLER | ||
| KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT | ||
| KAFKA_CONTROLLER_QUORUM_VOTERS: 1@localhost:19093,2@localhost:29093,3@localhost:39093 | ||
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Contributor
There was a problem hiding this comment. i dont think this is needed
Author
There was a problem hiding this comment. without this setting kafka fails to start with error "Exception in thread "main" org.apache.kafka.common.config.ConfigException: as we have removed zookeeper and started using Kraft which requires KAFKA_CONTROLLER_QUORUM_VOTERS:1@kafka:9093 referencing ID 1 |
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| KAFKA_AUTO_CREATE_TOPICS_ENABLE: "true" | ||
| KAFKA_NUM_PARTITIONS: 1 | ||
| extra_hosts: | ||
| - "moby:127.0.0.1" | ||
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| kafka-2: | ||
| container_name: kafka-2 | ||
| hostname: kafka-2 | ||
| image: apache/kafka:3.8.0 | ||
| network_mode: host | ||
| environment: | ||
| KAFKA_NODE_ID: 2 | ||
| KAFKA_PROCESS_ROLES: broker,controller | ||
| KAFKA_LISTENERS: PLAINTEXT://localhost:29092,CONTROLLER://localhost:29093 | ||
| KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://localhost:29092 | ||
| KAFKA_CONTROLLER_LISTENER_NAMES: CONTROLLER | ||
| KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT | ||
| KAFKA_CONTROLLER_QUORUM_VOTERS: 1@localhost:19093,2@localhost:29093,3@localhost:39093 | ||
| KAFKA_AUTO_CREATE_TOPICS_ENABLE: "true" | ||
| KAFKA_NUM_PARTITIONS: 1 | ||
| extra_hosts: | ||
| - "moby:127.0.0.1" | ||
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| kafka-3: | ||
| container_name: kafka-3 | ||
| hostname: kafka-3 | ||
| image: apache/kafka:3.8.0 | ||
| network_mode: host | ||
| environment: | ||
| KAFKA_NODE_ID: 3 | ||
| KAFKA_PROCESS_ROLES: broker,controller | ||
| KAFKA_LISTENERS: PLAINTEXT://localhost:39092,CONTROLLER://localhost:39093 | ||
| KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://localhost:39092 | ||
| KAFKA_CONTROLLER_LISTENER_NAMES: CONTROLLER | ||
| KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT | ||
| KAFKA_CONTROLLER_QUORUM_VOTERS: 1@localhost:19093,2@localhost:29093,3@localhost:39093 | ||
| KAFKA_AUTO_CREATE_TOPICS_ENABLE: "true" | ||
| KAFKA_NUM_PARTITIONS: 1 | ||
| extra_hosts: | ||
| - "moby:127.0.0.1" | ||
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| kafka-connect: | ||
| container_name: kafka-connect | ||
| hostname: kafka-connect | ||
| image: quay.io/debezium/connect:2.7 | ||
| network_mode: host | ||
| depends_on: | ||
| - kafka-1 | ||
| - kafka-2 | ||
| - kafka-3 | ||
| environment: | ||
| BOOTSTRAP_SERVERS: localhost:19092,localhost:29092,localhost:39092 | ||
| GROUP_ID: 1 | ||
| CONFIG_STORAGE_TOPIC: connect_configs | ||
| OFFSET_STORAGE_TOPIC: connect_offsets | ||
| STATUS_STORAGE_TOPIC: connect_statuses | ||
| CONFIG_STORAGE_REPLICATION_FACTOR: 2 | ||
| OFFSET_STORAGE_REPLICATION_FACTOR: 2 | ||
| STATUS_STORAGE_REPLICATION_FACTOR: 2 | ||
| KEY_CONVERTER: org.apache.kafka.connect.json.JsonConverter | ||
| VALUE_CONVERTER: org.apache.kafka.connect.json.JsonConverter | ||
| CONNECT_KEY_CONVERTER_SCHEMAS_ENABLE: "false" | ||
| CONNECT_VALUE_CONVERTER_SCHEMAS_ENABLE: "false" | ||
| REST_ADVERTISED_HOST_NAME: localhost | ||
| REST_PORT: 8083 | ||
| extra_hosts: | ||
| - "moby:127.0.0.1" | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,44 +1,47 @@ | ||
| --- | ||
| services: | ||
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| kafka: | ||
| image: apache/kafka:3.8.0 | ||
| hostname: kafka | ||
| container_name: kafka | ||
| ports: | ||
| - "9092:9092" | ||
| - "9094:9094" | ||
| environment: | ||
| KAFKA_NODE_ID: 1 | ||
| KAFKA_PROCESS_ROLES: broker,controller | ||
| KAFKA_LISTENERS: PLAINTEXT://kafka:19092,CONTROLLER://kafka:9093,PE://0.0.0.0:9092,LISTENER_P://0.0.0.0:9094 | ||
| KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka:19092,PE://127.0.0.1:9092,LISTENER_P://10.211.55.2:9094 | ||
| KAFKA_CONTROLLER_LISTENER_NAMES: CONTROLLER | ||
| KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT,PE:PLAINTEXT,LISTENER_P:PLAINTEXT | ||
| KAFKA_CONTROLLER_QUORUM_VOTERS: 1@kafka:9093 | ||
| KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 0 | ||
| KAFKA_NUM_PARTITIONS: 1 | ||
| KAFKA_AUTO_CREATE_TOPICS_ENABLE: "true" | ||
| mem_limit: 1500m | ||
| restart: always | ||
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| kafka-connect: | ||
| image: quay.io/debezium/connect:2.7 | ||
| hostname: kafka-connect | ||
| container_name: kafka-connect | ||
| ports: | ||
| - "8083:8083" | ||
| depends_on: | ||
| - kafka | ||
| environment: | ||
| BOOTSTRAP_SERVERS: kafka:19092 | ||
| GROUP_ID: 1 | ||
| CONFIG_STORAGE_TOPIC: connect_configs | ||
| OFFSET_STORAGE_TOPIC: connect_offsets | ||
| STATUS_STORAGE_TOPIC: connect_statuses | ||
| CONFIG_STORAGE_REPLICATION_FACTOR: 1 | ||
| OFFSET_STORAGE_REPLICATION_FACTOR: 1 | ||
| STATUS_STORAGE_REPLICATION_FACTOR: 1 | ||
| KEY_CONVERTER: org.apache.kafka.connect.json.JsonConverter | ||
| VALUE_CONVERTER: org.apache.kafka.connect.json.JsonConverter | ||
| CONNECT_KEY_CONVERTER_SCHEMAS_ENABLE: "false" | ||
| CONNECT_VALUE_CONVERTER_SCHEMAS_ENABLE: "false" | ||
| mem_limit: 1000m | ||
| restart: always |
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i dont think this is needed
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it is required for Kraft after eliminating zookeeper we need it for Kraft with a unique ID, as we have KAFKA_CONTROLLER_LISTENER_NAMES: CONTROLLER if not set its assumed zookeeper mode
https://kafka.apache.org/39/operations/kraft/#zookeeper-to-kraft-migration