services:
    nb:
        image: spark-demo
        ports:
        - "127.0.0.1:5000:5000"
        - "127.0.0.1:4040:4040"
        volumes:
        - "./nb:/nb"
        command: python3 -m jupyterlab --no-browser --ip=0.0.0.0 --port=5000 --allow-root --NotebookApp.token=''

    nn:
        image: spark-demo
        hostname: nn
        command: sh -c "hdfs namenode -format -force && hdfs namenode -D dfs.replication=1 -fs hdfs://nn:9000"

    dn:
        image: spark-demo
        command: hdfs datanode -fs hdfs://nn:9000

    spark-boss:
        image: spark-demo
        hostname: boss
        command: sh -c "/spark-3.5.5-bin-hadoop3/sbin/start-master.sh && sleep infinity"

    spark-worker:
        image: spark-demo
        command: sh -c "/spark-3.5.5-bin-hadoop3/sbin/start-worker.sh spark://boss:7077 -c 2 -m 2g && sleep infinity"
        deploy:
                replicas: 2