Got problem deploying docker-compose service(port issue) - docker

Question

I want to deploy a service that will allow me to use Spark and MongoDB in a Jupiter notebook.
I use docker-compose to build up the service, and it`s as followed:
version: "3.3"
volumes:
shared-workspace:
networks:
spark-net:
driver: bridge
services:
spark-master:
image: uqteaching/cloudcomputing:spark-master-v1
container_name: spark-master
networks:
- "spark-net"
ports:
- "8080:8080"
- "7077:7077"
environment:
- INIT_DAEMON_STEP=setup_spark
- "PYSPARK_PYTHON=/usr/bin/python3"
- "PYSPARK_DRIVER_PYTHON=/usr/bin/python3"
spark-worker-1:
image: uqteaching/cloudcomputing:spark-worker-v1
container_name: spark-worker-1
depends_on:
- spark-master
networks:
- "spark-net"
ports:
- "8081:8081"
environment:
- "SPARK_MASTER=spark://spark-master:7077"
- "PYSPARK_PYTHON=/usr/bin/python3"
- "PYSPARK_DRIVER_PYTHON=/usr/bin/python3"
spark-worker-2:
image: uqteaching/cloudcomputing:spark-worker-v1
container_name: spark-worker-2
depends_on:
- spark-master
networks:
- "spark-net"
ports:
- "8082:8082"
environment:
- "SPARK_MASTER=spark://spark-master:7077"
- "PYSPARK_PYTHON=/usr/bin/python3"
- "PYSPARK_DRIVER_PYTHON=/usr/bin/python3"
mongo:
image: mongo
container_name: 'mongo'
networks:
- "spark-net"
ports:
- "27017:27017"
mongo_admin:
image: mongo-express
container_name: 'mongoadmin'
networks:
- "spark-net"
depends_on:
- mongo
links:
- mongo
ports:
- "8091:8091"
jupyter-notebook:
container_name: jupyternb
image: jupyter/all-spark-notebook:42f4c82a07ff
depends_on:
- mongo
- spark-master
links:
- mongo
expose:
- "8888"
networks:
- "spark-net"
ports:
- "8888:8888"
volumes:
- ./nbs:/home/jovyan/work/nbs
- ./events:/tmp/spark-events
environment:
- "PYSPARK_PYTHON=/usr/bin/python3"
- "PYSPARK_DRIVER_PYTHON=/usr/bin/python3"
command: "start-notebook.sh \
--ip=0.0.0.0 \
--allow-root \
--no-browser \
--notebook-dir=/home/jovyan/work/nbs \
--NotebookApp.token='' \
--NotebookApp.password=''
"
And the result is something like this:
I dont know why. Even I set these 2` services to listen to a different port.
They are using 8081/tcp at the same time, which caused them both to crash.
I want to solve this.

Answer 1

mongo-express seems to need port 8081 internal, so use another external port to be able to login to the webui.
http://localhost:8092 would then be something like this:
mongo_admin:
image: mongo-express
container_name: 'mongoadmin'
networks:
- "spark-net"
depends_on:
- mongo
links:
- mongo
ports:
- "8092:8091"