为什么运行docker容器后mysql数据所有权更改为systemd-journal-remote

I have the mysql database stored in /home/mysql instead of /var/lib/mysql. The directory used to be owned by mysql. However, when I run the command docker-compose up with this yml file:

version: '3'
services:
  mariadb:
    image: mariadb
    restart: always
    volumes:
     - /home/mysql:/var/lib/mysql
  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:5.6.4
    environment:
      - "ES_JAVA_OPTS=-Xms750m -Xmx750m"
      - bootstrap.memory_lock=false
  site:
    build: .
    volumes:
      - "./app:/app"
    links:
      - mariadb:mysql
    environment:
      - DOCKER_IP=172.19.0.2
    depends_on: ['elasticsearch','mariadb']
    ports:
      - "3000:3000"

docker容器可以运行，但是/home/mysql中的整个文件夹和文件都归systemd-journal-remote所有，导致>node 服务器无法连接到 mariadb.我必须停止 docker 实例，恢复 mysql 文件夹所有权并删除 ib_logfile0 和 ib_logfile1.

version: '3'
services:
  mariadb:
    image: mariadb
    restart: always
    volumes:
     - /home/mysql:/var/lib/mysql
    user: "mysql"
  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:5.6.4
    environment:
      - "ES_JAVA_OPTS=-Xms750m -Xmx750m"
      - bootstrap.memory_lock=false
  site:
    build: .
    volumes:
      - "./app:/app"
    links:
      - mariadb:mysql
    environment:
      - DOCKER_IP=172.19.0.2
    depends_on: ['elasticsearch','mariadb']
    ports:
      - "3000:3000"