Docker Compose YAML for observing environment variables being logged as metrics in cAdvisor

cadvisor-env-vars-docker-compose.yml

services:
  ubuntu:
    container_name: ubuntu
    image: ubuntu:latest
    command: sleep infinity
    environment:
      - DEBUG=true
      - AWS=ASIA1234567890
  cadvisor:
    container_name: cadvisor
    image: gcr.io/cadvisor/cadvisor:v0.47.2
    ports:
      - "8080:8080"
    command: --env_metadata_whitelist=D,A
    volumes:
      - "/:/rootfs"
      - "/var/run:/var/run"
      - "/sys:/sys"
      - "/var/snap/docker/common/var-lib-docker:/var/lib/docker:ro"
      - "/dev/disk/:/dev/disk"