FROM alpine:3.20

# Install MariaDB and MariaDB client
# The --no-cache option is used to prevent the package manager from caching the downloaded packages
# rm -rf /var/cache/apk/* is used to remove any cached files after installation
# This helps to keep the image size small
RUN apk add --no-cache \
	mariadb \
	mariadb-client && \
	rm -rf /var/cache/apk/*

# Create a new user and group
RUN addgroup -S mariadb && \
	adduser -S mariadb -G mariadb

# Create the necessary directories
RUN mkdir -p /var/run/mysqld && \
	chown -R mariadb:mariadb /var/run/mysqld && \
	chown -R mariadb:mariadb /var/lib/mysql

# Copy the entrypoint script and configuration files
# and set the necessary permissions
# The entrypoint script will be responsible for initializing the database
# and starting the MariaDB server
# The configuration file will be used to set the server settings
# The init.sql file will be executed when the container is started for the first time
COPY ./tools/docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
COPY ./conf/my.cnf /etc/my.cnf
# COPY ./init.sql /usr/local/bin/init.sql
RUN chmod +x /usr/local/bin/docker-entrypoint.sh

# Expose the MySQL port
EXPOSE 3306

# Set the user and group to run the container
USER mariadb:mariadb

# Set the working directory
WORKDIR /var/lib/mysql

# Set the entrypoint script to be executed when the container starts
# The entrypoint script will initialize the database and start the server

ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]

# Start the MariaDB server
CMD ["mysqld"]