Add log file support to mariadb

bitnami/mariadb/Dockerfile

@@ -8,16 +8,18 @@ RUN apt-get update -q && DEBIAN_FRONTEND=noninteractive apt-get install -qy wget
     /opt/bitnami/mysql/scripts/ctl.sh stop mysql > /dev/null && \
     echo "bin/mysql -S /opt/bitnami/mysql/tmp/mysql.sock -u root -p\$2 -e \"GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '\$2' WITH GRANT OPTION;\"" >> /opt/bitnami/mysql/scripts/myscript.sh && \
     rm -rf /tmp/* /opt/bitnami/mysql/data /opt/bitnami/ctlscript.sh && \
+    mkdir /opt/bitnami/mysql/logs && ln -s /dev/stdout /opt/bitnami/mysql/logs/mysqld.log && \
     mkdir /opt/bitnami/mysql/conf.defaults && \
     mv /opt/bitnami/mysql/my.cnf /opt/bitnami/mysql/conf.defaults/ && \
     ln -s /opt/bitnami/mysql/conf/my.cnf /opt/bitnami/mysql/my.cnf && \
     ln -s /opt/bitnami/mysql/conf /conf && \
     ln -s /opt/bitnami/mysql/data /data && \
+    ln -s /opt/bitnami/mysql/logs /logs && \
     DEBIAN_FRONTEND=noninteractive apt-get --purge autoremove -qy wget && apt-get clean && rm -rf /var/lib/apt && rm -rf /var/cache/apt/archives/*
 
 ENV PATH /opt/bitnami/mysql/bin:$PATH
 EXPOSE 3306
-VOLUME ["/data", "/conf"]
+VOLUME ["/data", "/conf", "/logs"]
 
 COPY entrypoint.sh /entrypoint.sh
 ENTRYPOINT ["/entrypoint.sh"]

bitnami/mariadb/README.md

@@ -21,7 +21,8 @@ docker run --link mysql-server:mysql bitnami/mariadb \
 
 Map a volume on your host to `/data` to persist your database when the container is removed.
 
-If the volume is empty, the database will be initialized in your volume.
+If the volume is empty, the database will be initialized in your volume and the root password will
+be printed to stdout.
 
 ## Configuration
 
@@ -50,3 +51,5 @@ The container is set up to log to stdout, which means logs can be obtained as fo
 ```
 docker logs mysql-server
 ```
+
+If you would like to log to a file instead, you can mount a volume at `/logs`.

bitnami/mariadb/entrypoint.sh

@@ -8,7 +8,7 @@ fi
 
 
 if [ "$1" = 'mysqld.bin' ]; then
-  set -- "$@" --defaults-file=/opt/bitnami/mysql/my.cnf --basedir=/opt/bitnami/mysql --datadir=/opt/bitnami/mysql/data --plugin-dir=/opt/bitnami/mysql/lib/plugin --user=mysql --socket=/opt/bitnami/mysql/tmp/mysql.sock$EXTRA_OPTIONS
+  set -- "$@" --defaults-file=/opt/bitnami/mysql/my.cnf --log-error=/opt/bitnami/mysql/logs/mysqld.log --basedir=/opt/bitnami/mysql --datadir=/opt/bitnami/mysql/data --plugin-dir=/opt/bitnami/mysql/lib/plugin --user=mysql --socket=/opt/bitnami/mysql/tmp/mysql.sock$EXTRA_OPTIONS
 
   if [ ! "$(ls -A /conf)" ]; then
     echo "Copying default configuration to /conf/my.cnf..."
@@ -34,6 +34,8 @@ if [ "$1" = 'mysqld.bin' ]; then
     su mysql -c "sh /opt/bitnami/mysql/scripts/myscript.sh /opt/bitnami/mysql $MYSQL_PASSWORD"
     /opt/bitnami/mysql/scripts/ctl.sh stop mysql > /dev/null
   fi
+
+  chown mysql:mysql -R /opt/bitnami/mysql/logs
 fi
 
 exec "$@"