Linux 启动我的docker compose文件时发生数据库访问错误

我尝试在docker中运行owncloud，但结果是，在owncloud容器的日志中启动后，我看到一个数据库访问错误。所有连接详细信息均正确

Error while trying to create admin user: Failed to connect to the database: An exception occured in driver: SQLSTATE[HY000] [1045] Access denied for user 'owncloud'@'usr_owncloud_1.usr_default' (using password: YES)

配置取自官方网站：

---

通常，当您遇到这样的错误时，问题在于凭据，尤其是密码，遇到这种错误是很常见的。 尝试使用docker compose rm-v，并按照指南中的说明重新启动一切

version: '2.1'

volumes:
  files:
    driver: local
  mysql:
    driver: local
  backup:
    driver: local
  redis:
    driver: local

services:
  owncloud:
    image: owncloud/server:latest
    restart: always
    ports:
      - 8080:8080
    depends_on:
      - db
      - redis
    environment:
      - OWNCLOUD_DOMAIN=localhost
      - OWNCLOUD_DB_TYPE=mysql
      - OWNCLOUD_DB_NAME=owncloud
      - OWNCLOUD_DB_USERNAME=owncloud
      - OWNCLOUD_DB_PASSWORD=owncloud
      - OWNCLOUD_DB_HOST=db
      - OWNCLOUD_ADMIN_USERNAME=owncloud
      - OWNCLOUD_ADMIN_PASSWORD=123456789Aa
      - OWNCLOUD_MYSQL_UTF8MB4=true
      - OWNCLOUD_REDIS_ENABLED=true
      - OWNCLOUD_REDIS_HOST=redis
    healthcheck:
      test: ["CMD", "/usr/bin/healthcheck"]
      interval: 30s
      timeout: 10s
      retries: 5
    volumes:
      - files:/mnt/data

  db:
    image: webhippie/mariadb:latest
    restart: always
    environment:
      - MARIADB_ROOT_PASSWORD=owncloud
      - MARIADB_USERNAME=owncloud
      - MARIADB_PASSWORD=owncloud
      - MARIADB_DATABASE=owncloud
      - MARIADB_MAX_ALLOWED_PACKET=128M
      - MARIADB_INNODB_LOG_FILE_SIZE=64M
    healthcheck:
      test: ["CMD", "/usr/bin/healthcheck"]
      interval: 30s
      timeout: 10s
      retries: 5
    volumes:
      - mysql:/var/lib/mysql
      - backup:/var/lib/backup

  redis:
    image: webhippie/redis:latest
    restart: always
    environment:
      - REDIS_DATABASES=1
    healthcheck:
      test: ["CMD", "/usr/bin/healthcheck"]
      interval: 30s
      timeout: 10s
      retries: 5
    volumes:
      - redis:/var/lib/redis