docker-compose.yml

---
networks:
  ksml:
    name: ksml_example
    driver: bridge

services:

  broker:
    image: bitnami/kafka:3.8.0
    hostname: broker
    ports:
      - "9092:9092"
    networks:
      - ksml
    restart: always
    environment:
      KAFKA_CFG_PROCESS_ROLES: 'controller,broker'
      KAFKA_CFG_BROKER_ID: 0
      KAFKA_CFG_NODE_ID: 0
      KAFKA_CFG_CONTROLLER_QUORUM_VOTERS: '0@broker:9090'
      KAFKA_CFG_CONTROLLER_LISTENER_NAMES: 'CONTROLLER'

      KAFKA_CFG_ADVERTISED_LISTENERS: 'INNER://broker:9093,OUTER://localhost:9092'
      KAFKA_CFG_LISTENERS: 'INNER://broker:9093,OUTER://broker:9092,CONTROLLER://broker:9090'
      KAFKA_CFG_LISTENER_SECURITY_PROTOCOL_MAP: 'INNER:PLAINTEXT,OUTER:PLAINTEXT,CONTROLLER:PLAINTEXT'
      KAFKA_CFG_LOG_CLEANUP_POLICY: delete
      KAFKA_CFG_LOG_RETENTION_MINUTES: 10
      KAFKA_CFG_INTER_BROKER_LISTENER_NAME: INNER
      KAFKA_CFG_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_CFG_GROUP_INITIAL_REBALANCE_DELAY_MS: 0
      KAFKA_CFG_AUTO_CREATE_TOPICS_ENABLE: 'true'
      KAFKA_CFG_MIN_INSYNC_REPLICAS: 1
      KAFKA_CFG_NUM_PARTITIONS: 1
    healthcheck:
      # If the kafka topics can list data, the broker is healthy
      test: kafka-topics.sh --bootstrap-server broker:9093 --list
      interval: 5s
      timeout: 10s
      retries: 10
      start_period: 5s

  schema_registry:
    image: apicurio/apicurio-registry:3.0.2
    hostname: schema_registry
    depends_on:
      broker:
        condition: service_healthy
    ports:
      - "8081:8081"
    networks:
      - ksml
    restart: always
    environment:
      QUARKUS_HTTP_PORT: 8081
      QUARKUS_HTTP_CORS_ORIGINS: '*'
      QUARKUS_PROFILE: "prod"
      APICURIO_STORAGE_KIND: kafkasql
      APICURIO_KAFKASQL_BOOTSTRAP_SERVERS: 'broker:9093'
      APICURIO_KAFKASQL_TOPIC: '_apciurio-kafkasql-store'
    healthcheck:
      # If the api endpoint is available, the service is considered healthy
      test: curl http://localhost:8081/apis
      interval: 15s
      timeout: 10s
      retries: 10
      start_period: 10s

  # This "container" is a workaround to pre-create topics
  kafka-setup:
    image: bitnami/kafka:3.8.0
    hostname: kafka-setup
    networks:
      - ksml
    depends_on:
      broker:
        condition: service_healthy
    restart: on-failure
    command: "bash -c 'echo Trying to create topics... && \
                       kafka-topics.sh --create --if-not-exists --bootstrap-server broker:9093 --partitions 1 --replication-factor 1 --topic ksml_sensordata_avro && \
                       kafka-topics.sh --create --if-not-exists --bootstrap-server broker:9093 --partitions 1 --replication-factor 1 --topic ksml_sensordata_avro_binary && \
                       kafka-topics.sh --create --if-not-exists --bootstrap-server broker:9093 --partitions 1 --replication-factor 1 --topic ksml_sensordata_csv && \
                       kafka-topics.sh --create --if-not-exists --bootstrap-server broker:9093 --partitions 1 --replication-factor 1 --topic ksml_sensordata_json && \
                       kafka-topics.sh --create --if-not-exists --bootstrap-server broker:9093 --partitions 1 --replication-factor 1 --topic ksml_sensordata_xml && \
                       kafka-topics.sh --create --if-not-exists --bootstrap-server broker:9093 --partitions 1 --replication-factor 1 --topic ksml_sensordata_transformed && \
                       kafka-topics.sh --create --if-not-exists --bootstrap-server broker:9093 --partitions 1 --replication-factor 1 --topic ksml_sensordata_manipulated && \
                       kafka-topics.sh --create --if-not-exists --bootstrap-server broker:9093 --partitions 1 --replication-factor 1 --topic ksml_sensoralert_settings --config cleanup.policy=compact&& \
                       kafka-topics.sh --create --if-not-exists --bootstrap-server broker:9093 --partitions 1 --replication-factor 1 --topic ksml_sensoralert && \
                       kafka-topics.sh --create --if-not-exists --bootstrap-server broker:9093 --partitions 1 --replication-factor 1 --topic io.ksml.example.processor-ksml_sensordata_grouped-repartition && \
                       kafka-topics.sh --create --if-not-exists --bootstrap-server broker:9093 --partitions 1 --replication-factor 1 --topic ksml_sensordata_count && \
                       kafka-topics.sh --create --if-not-exists --bootstrap-server broker:9093 --partitions 1 --replication-factor 1 --topic ksml_sensordata_filtered && \
                       kafka-topics.sh --create --if-not-exists --bootstrap-server broker:9093 --partitions 1 --replication-factor 1 --topic ksml_sensordata_blue && \
                       kafka-topics.sh --create --if-not-exists --bootstrap-server broker:9093 --partitions 1 --replication-factor 1 --topic ksml_sensordata_red && \
                       kafka-topics.sh --create --if-not-exists --bootstrap-server broker:9093 --partitions 1 --replication-factor 1 --topic ksml_sensordata_sensor0 && \
                       kafka-topics.sh --create --if-not-exists --bootstrap-server broker:9093 --partitions 1 --replication-factor 1 --topic ksml_sensordata_sensor1 && \
                       kafka-topics.sh --create --if-not-exists --bootstrap-server broker:9093 --partitions 1 --replication-factor 1 --topic ksml_sensordata_sensor2 && \
                       kafka-topics.sh --create --if-not-exists --bootstrap-server broker:9093 --partitions 1 --replication-factor 1 --topic ksml_sensordata_table && \
                       kafka-topics.sh --create --if-not-exists --bootstrap-server broker:9093 --partitions 1 --replication-factor 1 --topic io.ksml.example.processor-ownerCount-changelog'"

  example-producer:
    image: axual/ksml:latest
    hostname: kafka-data-generator
    restart: on-failure
    networks:
      - ksml
    working_dir: /ksml
    command:
      - /ksml/ksml-data-generator.yaml
    volumes:
    - ./examples:/ksml
    depends_on:
      broker:
        condition: service_healthy
      schema_registry:
        condition: service_healthy
      kafka-setup:
        condition: service_completed_successfully