MariaDb

docker-compose.yaml

services:
  mariadb:
    image: mariadb:11
    container_name: mariadb
    restart: unless-stopped
    ports:
      - "3306:3306"
    environment:
      MARIADB_ROOT_PASSWORD: password
      MARIADB_DATABASE: mydb
      MARIADB_USER: user
      MARIADB_PASSWORD: password
    volumes:
      - ./mariadb-data:/var/lib/mysql

Firewall

firewall-cmd --add-port=3306/tcp
firewall-cmd --add-port=3306/tcp --permanent