96 lines
2.9 KiB
Bash
Executable File
96 lines
2.9 KiB
Bash
Executable File
#!/bin/bash
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# _____ _ _
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# | __|___ ___ ___ _| |___ _____| |_ ___ ___ ___
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# | __| _| -_| -_| . | . | | . | . | | -_|
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# |__| |_| |___|___|___|___|_|_|_|___|___|_|_|___|
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#
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# Freedom in the Cloud
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#
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# Checks and repairs a given database
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#
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# License
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# =======
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#
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# Copyright (C) 2015-2018 Bob Mottram <bob@freedombone.net>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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PROJECT_NAME='freedombone'
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COMPLETION_FILE="$HOME/${PROJECT_NAME}-completed.txt"
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CONFIG_FILE="$HOME/${PROJECT_NAME}.cfg"
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export TEXTDOMAIN=${PROJECT_NAME}-repair-databases
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export TEXTDOMAINDIR="/usr/share/locale"
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# The database to be repaired
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DATABASE="$1"
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ADMIN_USERNAME=$(grep "Admin user" "$COMPLETION_FILE" | awk -F ':' '{print $2}')
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ADMIN_EMAIL_ADDRESS=${ADMIN_USERNAME}@${HOSTNAME}
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# Frequency - daily/weekly
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BACKUP_TYPE='daily'
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# migrate from database password file to using the password store
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DATABASE_PASSWORD_FILE=/root/dbpass
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if [ -f $DATABASE_PASSWORD_FILE ]; then
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MARIADB_PASSWORD=$(cat $DATABASE_PASSWORD_FILE)
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${PROJECT_NAME}-pass -u root -a mariadb -p "$MARIADB_PASSWORD"
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stored_password=$(${PROJECT_NAME}-pass -u root -a mariadb)
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if [[ "$stored_password" == "$MARIADB_PASSWORD" ]]; then
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rm $DATABASE_PASSWORD_FILE
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fi
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fi
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MYSQL_ROOT_PASSWORD=$(${PROJECT_NAME}-pass -u root -a mariadb)
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TEMPFILE=/root/repair-database-$DATABASE
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umask 0077
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if [ "$2" ]; then
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BACKUP_TYPE="$2"
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fi
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# check the database
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mysqlcheck -c -u root --password="$MYSQL_ROOT_PASSWORD" "$DATABASE" > "$TEMPFILE"
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# Attempt to repair the database if it contains errors
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if grep -q "Error" "$TEMPFILE"; then
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mysqlcheck -u root --password="$MYSQL_ROOT_PASSWORD" --auto-repair "$DATABASE"
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else
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# No errors were found, so exit
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rm -f "$TEMPFILE"
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exit 0
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fi
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rm -f "$TEMPFILE"
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# Check the database again
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mysqlcheck -c -u root --password="$MYSQL_ROOT_PASSWORD" "$DATABASE" > "$TEMPFILE"
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# If it still contains errors then restore from backup
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if grep -q "Error" "$TEMPFILE"; then
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mysql -u root --password="$MYSQL_ROOT_PASSWORD" "$DATABASE" -o < "/var/backups/${DATABASE}_${BACKUP_TYPE}.sql"
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# Send a warning email
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echo $"$DATABASE database corruption could not be repaired. Restored from backup." | mail -s $"${PROJECT_NAME} database maintenance" "$ADMIN_EMAIL_ADDRESS"
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rm -f "$TEMPFILE"
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exit 1
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fi
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rm -f "$TEMPFILE"
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exit 0
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