message: update socket location.
diff: INITDB_DIR="/docker-entrypoint-initdb.d"
  -for sql_file in `ls $INITDB_DIR`; do mysql -S /tmp/mysql.sock -uapi -papi infrastructure < "$INITDB_DIR/$sql_file" ; done
  +for sql_file in `ls $INITDB_DIR`; do mysql -S /run/mysqld/mysqld.sock -uapi -papi infrastructure < "$INITDB_DIR/$sql_file" ; done
  