1. spark-master:
    2.   image: bde2020/spark-master:2.4.3-hadoop2.7
    3.   container_name: spark-master
    4.   ports:
    5.     - "8080:8080"
    6.     - "7077:7077"
    7.   environment:
    8.     - INIT_DAEMON_STEP=setup_spark
    9.     - "constraint:node==<yourmasternode>"
    10. spark-worker-1:
    11.   image: bde2020/spark-worker:2.4.3-hadoop2.7
    12.   container_name: spark-worker-1
    13.   depends_on:
    14.     - spark-master
    15.   ports:
    16.     - "8081:8081"
    17.   environment:
    18.     - "SPARK_MASTER=spark://spark-master:7077"
    19.     - "constraint:node==<yourworkernode>"
    20. spark-worker-2:
    21.   image: bde2020/spark-worker:2.4.3-hadoop2.7
    22.   container_name: spark-worker-2
    23.   depends_on:
    24.     - spark-master
    25.   ports:
    26.     - "8081:8081"
    27.   environment:
    28.     - "SPARK_MASTER=spark://spark-master:7077"
    29.     - "constraint:node==<yourworkernode>"