docker-compose.yml

---
version: '2'
services:
  zookeeper:
    image: confluentinc/cp-zookeeper:7.0.1
    container_name: zookeeper
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000

  broker:
    image: confluentinc/cp-kafka:7.0.1
    container_name: kafka
    depends_on:
      - zookeeper
    ports:
    # "`-._,-'"`-._,-'"`-._,-'"`-._,-'"`-._,-'"`-._,-'"`-._,-'"`-._,-'"`-._,-
    # An important note about accessing Kafka from clients on other machines:
    # -----------------------------------------------------------------------
    #
    # The config used here exposes port 9092 for _external_ connections to the broker
    # i.e. those from _outside_ the docker network. This could be from the host machine
    # running docker, or maybe further afield if you've got a more complicated setup.
    # If the latter is true, you will need to change the value 'localhost' in
    # KAFKA_ADVERTISED_LISTENERS to one that is resolvable to the docker host from those
    # remote clients
    #
    # For connections _internal_ to the docker network, such as from other services
    # and components, use broker:29092.
    #
    # See https://rmoff.net/2018/08/02/kafka-listeners-explained/ for details
    # "`-._,-'"`-._,-'"`-._,-'"`-._,-'"`-._,-'"`-._,-'"`-._,-'"`-._,-'"`-._,-
    #
      - 9092:9092
    environment:
      KAFKA_BROKER_ID: 1
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: PLAINTEXT
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://broker:29092,PLAINTEXT_HOST://broker:9092
      KAFKA_AUTO_CREATE_TOPICS_ENABLE: "true"
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1
      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
      KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 100

  schema-registry:
    image: confluentinc/cp-schema-registry:7.0.1
    container_name: schema-registry
    ports:
      - "8081:8081"
    depends_on:
      - broker
    environment:
      SCHEMA_REGISTRY_HOST_NAME: schema-registry
      SCHEMA_REGISTRY_KAFKASTORE_BOOTSTRAP_SERVERS: 'broker:29092'

  kafka-connect:
    image: confluentinc/cp-kafka-connect-base:7.0.1
    container_name: kafka-connect
    depends_on:
      - broker
      - schema-registry
    ports:
      - 8083:8083
    environment:
      CONNECT_BOOTSTRAP_SERVERS: "broker:29092"
      CONNECT_REST_PORT: 8083
      CONNECT_GROUP_ID: kafka-connect
      CONNECT_CONFIG_STORAGE_TOPIC: _connect-configs
      CONNECT_OFFSET_STORAGE_TOPIC: _connect-offsets
      CONNECT_STATUS_STORAGE_TOPIC: _connect-status
      CONNECT_KEY_CONVERTER: org.apache.kafka.connect.storage.StringConverter
      CONNECT_VALUE_CONVERTER: io.confluent.connect.avro.AvroConverter
      CONNECT_VALUE_CONVERTER_SCHEMA_REGISTRY_URL: 'http://schema-registry:8081'
      CONNECT_INTERNAL_KEY_CONVERTER: "org.apache.kafka.connect.json.JsonConverter"
      CONNECT_INTERNAL_VALUE_CONVERTER: "org.apache.kafka.connect.json.JsonConverter"
      CONNECT_REST_ADVERTISED_HOST_NAME: "kafka-connect"
      CONNECT_LOG4J_ROOT_LOGLEVEL: "INFO"
      CONNECT_LOG4J_LOGGERS: "org.apache.kafka.connect.runtime.rest=WARN,org.reflections=ERROR"
      CONNECT_LOG4J_APPENDER_STDOUT_LAYOUT_CONVERSIONPATTERN: "[%d] %p %X{connector.context}%m (%c:%L)%n"
      CONNECT_CONFIG_STORAGE_REPLICATION_FACTOR: "1"
      CONNECT_OFFSET_STORAGE_REPLICATION_FACTOR: "1"
      CONNECT_STATUS_STORAGE_REPLICATION_FACTOR: "1"
    # You can either specify your AWS credentials here, or create a .env file
    # in which the environment variables are set. The latter is preferable since you can isolate 
    # your credentials from this Docker Compose file.
      AWS_ACCESS_KEY_ID: ${AWS_ACCESS_KEY_ID}
      AWS_SECRET_ACCESS_KEY: ${AWS_SECRET_ACCESS_KEY}
    #  ---------------
      CONNECT_PLUGIN_PATH: /usr/share/java,/usr/share/confluent-hub-components,/data/connect-jars
    # If you want to use the Confluent Hub installer to d/l component, but make them available
    # when running this offline, spin up the stack once and then run : 
    #   docker cp kafka-connect:/usr/share/confluent-hub-components ./data/connect-jars
    # volumes:
    #   - $PWD/data:/data
    # In the command section, $ are replaced with $$ to avoid the error 'Invalid interpolation format for "command" option'
    command:
      - bash
      - -c
      - |
        echo "Installing Connector"
        confluent-hub install --no-prompt confluentinc/kafka-connect-s3:5.5.2
        confluent-hub install --no-prompt mdrogalis/voluble:0.3.1
        confluent-hub install --no-prompt confluentinc/kafka-connect-jdbc:10.0.1
        confluent-hub install --no-prompt confluentinc/connect-transforms:1.3.2
        confluent-hub install --no-prompt jcustenborder/kafka-connect-transform-common:0.1.0.36
        confluent-hub install --no-prompt jcustenborder/kafka-connect-simulator:0.1.120
        #
        # JDBC Drivers
        # ------------
        # MySQL
        cd /usr/share/confluent-hub-components/confluentinc-kafka-connect-jdbc/lib
        # See https://dev.mysql.com/downloads/connector/j/
        curl https://cdn.mysql.com/archives/mysql-connector-java-8.0/mysql-connector-java-8.0.23.tar.gz | tar xz
        echo "MySQL JDBC driver should now be present here:"
        ls -l mysql*
        #
        echo "Launching Kafka Connect worker"
        /etc/confluent/docker/run &
        #
        sleep infinity

  ksqldb:
    image: confluentinc/ksqldb-server:0.14.0
    container_name: ksqldb
    depends_on:
      - broker
    ports:
      - "8088:8088"
    environment:
      KSQL_LISTENERS: http://0.0.0.0:8088
      KSQL_BOOTSTRAP_SERVERS: broker:29092
      KSQL_KSQL_LOGGING_PROCESSING_STREAM_AUTO_CREATE: "true"
      KSQL_KSQL_LOGGING_PROCESSING_TOPIC_AUTO_CREATE: "true"
      KSQL_KSQL_CONNECT_URL: http://kafka-connect:8083
      KSQL_KSQL_SCHEMA_REGISTRY_URL: http://schema-registry:8081
      KSQL_KSQL_SERVICE_ID: confluent_rmoff_01
      KSQL_KSQL_HIDDEN_TOPICS: '^_.*'
      
# Other systems
  mysql:
    # *-----------------------------*
    # To connect to the DB:
    #   docker exec -it mysql bash -c 'mysql -u root -p$MYSQL_ROOT_PASSWORD demo'
    # *-----------------------------*
    image: mysql:8.0
    container_name: mysql
    ports:
      - 3306:3306
    environment:
     - MYSQL_ROOT_PASSWORD=Admin123
     - MYSQL_USER=mysqluser
     - MYSQL_PASSWORD=mysqlpw
    volumes:
     - ${PWD}/00_setup_db.sql:/docker-entrypoint-initdb.d/00_setup_db.sql
    #  - ${PWD}/data:/data

  kafkacat:
    image: edenhill/kafkacat:1.6.0
    container_name: kafkacat
    links:
      - broker
      - schema-registry
    entrypoint: 
      - /bin/sh 
      - -c 
      - |
        apk add jq; 
        while [ 1 -eq 1 ];do sleep 60;done