version: '3.1'

services:

  db:
    image: mariadb
    restart: always
    environment:
    - MYSQL_ROOT_PASSWORD=mypassword
    - MYSQL_TCP_PORT=33030
    - MYSQL_UNIT_PORT=33020
    ports:
    - "33020:33020"

FROM: mariadb: 10.3.14
COPY mydbscript.sql /docker-entrypoint-initdb.d/
EXPOSE 33020
CMD ["mysqld"]