FROM            alpine:3.12.3
RUN             apk update
RUN             apk add mariadb mariadb-common mariadb-client
COPY            my.cnf /etc/my.cnf
EXPOSE          3306
COPY            start.sh /start.sh
RUN             chmod +x /start.sh
VOLUME          ["/var/lib/mysql"]
CMD             ["/start.sh"]