mariadb + adminer

docker-compose.yml

version: '3.8'

services:
  mariadb:
    image: mariadb:10.8
    restart: always
    ports:
      - 3307:3306
    volumes:
      - ./mariadb:/var/lib/mysql
    environment:
      - MYSQL_ROOT_PASSWORD=root
      - MYSQL_PASSWORD=admin
      - MYSQL_USER=admin
      - MYSQL_DATABASE=test
      - MYSQL_TCP_PORT=3306
  adminer:
    image: adminer
    restart: always
    ports:
      - 8080:8080

then head to localhost:8080 and connect to mariadb using the following credentials

server: mariadb
user: root or admin
password: root or admin