docker-mariadb-backup-slave/rootfs/usr/local/bin/docker-entrypoint-new.sh

#!/bin/bash

set -eo pipefail
shopt -s nullglob

source /usr/local/bin/docker-entrypoint.sh

write_custom_config() {
	SERVER_ID=${SERVER_ID:-33}
	READONLY=${READONLY:-1}

	cat >/etc/mysql/mariadb.conf.d/custom.cnf <<EOF
[mysqld]
server_id=${SERVER_ID}
replicate-do-db=${REPLICATE_DO_DB}
EOF

	if [ "$READONLY" = "1" ] ; then
		echo "read-only" >> /etc/mysql/mariadb.conf.d/custom.cnf
	fi
}

start_cron() {
	sudo cron -f &
}

chown_datadir() {
	sudo chown -R mysql /var/lib/mysql
}

if ! _is_sourced; then
	write_custom_config
	chown_datadir
	start_cron    
	_main "$@"
fi