85 lines
2.5 KiB
Bash
Executable File
85 lines
2.5 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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# ' ' --' --' -' - -' ' ' -' -' -' ' - --'
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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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# License
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# =======
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#
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# Copyright (C) 2015-2016 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=$1
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ADMIN_USERNAME=$(cat $COMPLETION_FILE | grep "Admin user" | awk -F ':' '{print $2}')
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ADMIN_EMAIL_ADDRESS=${ADMIN_USERNAME}@${HOSTNAME}
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# Frequency - daily/weekly
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BACKUP_TYPE='daily'
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MYSQL_ROOT_PASSWORD=$(cat /root/dbpass)
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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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