docker-compose.yaml

services:

  db:
    container_name: "flask_db"
    # We use a mariadb image which supports both amd64 & arm64 architecture
    image: mariadb:10.6.4-focal
    # If you really want to use MySQL, uncomment the following line
    #image: mysql:8.0.27
    command: '--default-authentication-plugin=mysql_native_password'
    restart: always
    healthcheck:
      test: ["CMD", "mysqladmin", "ping", "-h", "127.0.0.1", "--silent"]
      interval: 3s
      retries: 5
      start_period: 30s
    secrets:
      - db-password
    volumes:
      - db-data:/var/lib/mysql
    networks:
      - backnet
    environment:
      - MYSQL_DATABASE=example
      - MYSQL_ROOT_PASSWORD_FILE=/run/secrets/db-password
    expose:
      - 3306
      - 33060

  backend:
    container_name: "flask_backend"
    build: backend
    restart: always
    secrets:
      - db-password
    ports:
      - 5000:5000
    networks:
      - backnet
      - frontnet
    volumes:
      - ./backend:/code
    depends_on:
      db:
        condition: service_healthy

  proxy:
    container_name: "flask_proxy"
    build: proxy
    restart: always
    ports:
      - 80:80
    depends_on: 
      - backend
    networks:
      - frontnet

  adminer:
    container_name: "flask_adminer"
    image: adminer
    environment:
      ADMINER_DEFAULT_DB_DRIVER: mysql
    restart: always
    networks:
      - backnet
      - frontnet
    ports:
      - 8080:8080
##      # For MariaDB:
##      ADMINER_DEFAULT_DB_DRIVER: server
#      ADMINER_DEFAULT_DB_HOST: $DB_HOST
#      ADMINER_DEFAULT_DB_NAME: $DB_NAME
#    labels:
#    - "traefik.http.routers.${PROJECT_NAME}_adminer.rule=Host(`adminer.${PROJECT_BASE_URL}`)"

volumes:
  db-data:
secrets:
  db-password:
    file: db/password.txt
networks:
  backnet:
  frontnet: