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Where does selenium generates the test execution logs? // selenium grid // docker

I am trying to run Selenium test cases inside docker through Jenkins. The docker is on Amazon EC2 instance. I start docker with the following command:

docker run -d -v /var/jenkins_home:/var/jenkins_home:z -p 80:8080 -p 50000:50000 -v "/home/ec2-user/source/jenkins" -v /var/run/docker.sock:/var/run/docker.sock -v $(which docker):/usr/bin/docker -v $(which docker-compose):/usr/bin/docker-compose  jenkins/jenkins:lts

Below is the docker-compose.yaml file:

version: "3"
services:
  hub:
    image: selenium/hub:3.14
    ports: 
    - "443:4444"
  chrome:
    image: selenium/node-chrome-debug:3.14
    ports: 
    - "9000:5900"
    depends_on:
      - hub
    environment:
      - HUB_HOST=hub
  firefox:
    image: selenium/node-firefox:3.14
    shm_size: '1gb'
    depends_on:
      - hub
    environment:
      - HUB_HOST=hub
  test-module:
    image: pu/tc
    depends_on:
      - chrome
      - firefox
    environment:
      - HUB_HOST=hub
      - BROWSER=chrome
      - MODULE=testng.xml
    volumes:
      - ./output/test-result:/home/ec2-user/test-output

The yaml file creates one chrome, one firefox, and one hub docker instances. I want to know where does it store the test case execution logs and reports?