docker-compose-dev.yaml

services:
  flask-gunicorn-app:
    image: servingmlmodels-flask-gunicorn-app:1.0.0
    build:
      context: .
      dockerfile: ./dockerfiles/Dockerfile.flask-gunicorn-app
    restart: always

  nginx:
    image: servingmlmodels-nginx:1.0.0
    build:
      context: .
      dockerfile: ./dockerfiles/Dockerfile.nginx
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - ./container-volumes/nginx/nginx.conf:/etc/nginx/conf.d/default.conf:ro
      - nginx-certs:/etc/nginx/certs:ro
      - nginx-frontend:/usr/share/nginx/html:ro
    restart: always

  # A container used as a lightweight VM for students to practice Linux commands
  # The alternative is to use an actual VM, but that requires more resources
  # and setup time.
  ubuntu-server:
    image: customized-ubuntu-server:1.0.0
    build:
      context: ./dockerfiles/ubuntu
      dockerfile: Dockerfile.ubuntu
    environment:
      ROOT_PASSWORD: ${ROOT_PASSWORD}
      STUDENT_PASSWORD: ${STUDENT_PASSWORD}
    hostname: customized-ubuntu-server-smm
    container_name: customized-ubuntu-server-smm
    # Keeps standard input (STDIN) open for the container,
    # even when nothing is actively attached to it.
    # This maintains the interactive session via bash.
    stdin_open: true
    # A TTY provides the terminal interface that makes interactive programs
    # work correctly. Without it, programs that expect terminal features
    # (colors, cursor positioning, line editing) will malfunction.
    tty: true
    # Port binding can be added if you want to access the container's services (like SSH) from the host machine.
    ports:
      - 2222:22
    volumes:
      # To store the required data persistently
      - home-student:/home/student

# Create the folder specified in "device" if it doesn't exist, and ensure it has the correct permissions
# so that the container can read/write to it without issues.
volumes:
  home-student:
    driver: local # The volume will be stored locally on the host machine
    driver_opts:
      type: none # Binds to the path specified in "device" instead of creating a new directory/file on the host
      o: bind # Confirms that Docker maps a directory/file on the host directly into the container
      device: ./container-volumes/ubuntu/home-student # The path on the host machine that will be mounted into the container

  nginx-certs:
    driver: local
    driver_opts:
      type: none
      o: bind
      device: ./container-volumes/nginx/certs

  nginx-frontend:
    driver: local
    driver_opts:
      type: none
      o: bind
      device: ./frontend