#!{{ dash }} # DO NOT RUN THIS SCRIPT ON PRODUCTION INSTANCE # OR MYSQL DATA WILL BE ERASED. # This script will import the dump of the mysql database to the real # database. It is launched by the clone (importer) instance of webrunner # in the end of the import script. # Depending on the output, it will create a file containing # the status of the restoration (success or failure) set -e mysql_executable='{{ mysql_executable }}' mariadb_data_directory='{{ mariadb_data_directory }}' mariadb_backup_directory='{{ mariadb_backup_directory }}' pid_file='{{ pid_file }}' binlog_path='{{ binlog_path }}' server_executable='{{ server_executable }}' # Make sure mariadb is not already running if [ -e "$pid_file" ]; then if ! pid=$(cat "$pid_file"); then echo "Cannot read Mariadb pidfile, assuming running. Aborting." exit 1 fi if kill -0 "$pid"; then echo "Mariadb is already running with pid $pid. Aborting." exit 1 fi fi echo "Deleting existing database..." find "$mariadb_data_directory" -mindepth 1 -delete # $binlog_path can be empty if incremental_backup_retention_days <= -1 if [ -n "$binlog_path" ]; then new_binlog_directory="$(dirname "$binlog_path")" binlog_index_file="$new_binlog_directory/binlog.index" if [ -e "$binlog_index_file" ]; then echo "Adapting binlog database to new paths..." old_binlog_directory="$(dirname $(head -n 1 $binlog_index_file))" sed -e "s|$old_binlog_directory|$new_binlog_directory|g" $binlog_index_file > $binlog_index_file fi fi echo "Starting mariadb..." "$server_executable" --innodb-flush-method=nosync --skip-innodb-doublewrite --innodb-flush-log-at-trx-commit=0 --sync-frm=0 --slow-query-log=0 --skip-log-bin & mysqld_pid=$! trap "kill $mysqld_pid" EXIT TERM INT sleep 30 # If mysql has stopped, abort if ! [ -d /proc/$mysql_pid ]; then echo "mysqld exited, aborting." exit 1 fi echo "Importing data..." # Use latest dump XXX can contain funny characters dump=$(ls -r "$mariadb_backup_directory" | head -1) zcat "$mariadb_backup_directory/$dump" | $mysql_executable || { RESTORE_EXIT_CODE=$? echo 'Backup restoration failed.' exit $RESTORE_EXIT_CODE } echo 'Backup restoration successfully completed.'