Running zeppelin on spark cluster mode

I am using this tutorial spark cluster on yarn mode in docker container to launch zeppelin in spark cluster in yarn mode. However I am stuck at step 4. I can't find conf/zeppelin-env.sh in my docker container to put further configuration. I tried putting these conf folder of zeppelin but yet now successful. Apart from that zeppelin notebook is also not running on localhost:9001.

I am very new to distributed system, it would be great if someone can help me start zeppelin on spark cluster in yarn mode.

Here is my docker-compose file to enable zeppelin talk with spark cluster.

version: '2'
services:
sparkmaster:
  build: .
  container_name: sparkmaster
ports:
  - "8080:8080"
  - "7077:7077" 
  - "8888:8888"
  - "8081:8081"
  - "8082:8082"
  - "5050:5050"
  - "5051:5051"
  - "4040:4040"
zeppelin:
  image: dylanmei/zeppelin
  container_name: zeppelin-notebook
env_file:
  - ./hadoop.env
environment:
  ZEPPELIN_PORT: 9001
  CORE_CONF_fs_defaultFS: "hdfs://namenode:8020"
  HADOOP_CONF_DIR_fs_defaultFS: "hdfs://namenode:8020"
  SPARK_MASTER: "spark://spark-master:7077"
  MASTER: "yarn-client"
  SPARK_HOME: spark-master
  ZEPPELIN_JAVA_OPTS: >-
    -Dspark.driver.memory=1g
    -Dspark.executor.memory=2g
ports:
  - 9001:9001
volumes:
  - ./data:/usr/zeppelin/data
  - ./notebooks:/usr/zeppelin/notebook

this is the dockerfile you used to launch the standalone spark cluster.