Dockerfile

ARG UPSTREAM_IMAGE
FROM ${UPSTREAM_IMAGE}

# Has to be set again after FROM
ARG VERSION

# Docksal settings
COPY ./${VERSION}/default.cnf /etc/mysql/conf.d/10-default.cnf

VOLUME /var/lib/mysql

COPY docker-entrypoint.d /docker-entrypoint.d
COPY healthcheck.sh /opt/healthcheck.sh

COPY docker-preinit-entrypoint.patch /usr/local/bin/docker-preinit-entrypoint.patch
COPY docker-postinit-entrypoint.patch /usr/local/bin/docker-postinit-entrypoint.patch

# Apply patch for running scripts placed in /docker-entrypoint.d/* by root
RUN set -xe; \
    sed -i -e '/\$(id -u)/r /usr/local/bin/docker-preinit-entrypoint.patch' /usr/local/bin/docker-entrypoint.sh; \
    sed -n -i -e '/ls \/docker-entrypoint-initdb.d\/ > \/dev\/null/ r /usr/local/bin/docker-postinit-entrypoint.patch' -e 1x -e '2,${x;p}' -e '${x;p}' /usr/local/bin/docker-entrypoint.sh; \
    rm -f /usr/local/bin/docker-preinit-entrypoint.patch /usr/local/bin/docker-postinit-entrypoint.patch

EXPOSE 3306

# Starting with mariadb 10.5, character-set-server and collation-server can only be set via command line arguments.
CMD ["mysqld", "--character-set-server=utf8mb4", "--collation-server=utf8mb4_unicode_ci"]

# Health check script
HEALTHCHECK --interval=5s --timeout=1s --retries=12 CMD ["/opt/healthcheck.sh"]