#
# Bash script for creating backups of Nextcloud.
# Usage: ./NextcloudBackup.sh
-#
+#
# The script is based on an installation of Nextcloud using nginx and MariaDB, see https://decatec.de/home-server/nextcloud-auf-ubuntu-server-18-04-lts-mit-nginx-mariadb-php-lets-encrypt-redis-und-fail2ban/
#
# Variables
currentDate=$(date +"%Y%m%d_%H%M%S")
# TODO: The directory where you store the Nextcloud backups
-backupMainDir="/mnt/Share/NextcloudBackups/"
+backupMainDir="/mnt/Share/NextcloudBackups"
# The actual directory of the current backup - this is a subdirectory of the main directory above with a timestamp
backupdir="${backupMainDir}/${currentDate}/"
# TODO: The directory of your Nextcloud installation (this is a directory under your web root)
# TODO: The directory of your Nextcloud data directory (outside the Nextcloud file directory)
# If your data directory is located under Nextcloud's file directory (somewhere in the web root), the data directory should not be a separate part of the backup
nextcloudDataDir="/var/nextcloud_data"
-# TODO: The service name of the web server. Used to start/stop web server (e.g. 'service <webserverServiceName> start')
+# TODO: The service name of the web server. Used to start/stop web server (e.g. 'systemctl start <webserverServiceName>')
webserverServiceName="nginx"
# TODO: Your Nextcloud database name
nextcloudDatabase="nextcloud_db"
# Function for error messages
errorecho() { cat <<< "$@" 1>&2; }
+function DisableMaintenanceMode() {
+ echo "Switching off maintenance mode..."
+ sudo -u "${webserverUser}" php ${nextcloudFileDir}/occ maintenance:mode --off
+ echo "Done"
+ echo
+}
+
+# Capture CTRL+C
+trap CtrlC INT
+
+function CtrlC() {
+ read -p "Backup cancelled. Keep maintenance mode? [y/n] " -n 1 -r
+ echo
+
+ if ! [[ $REPLY =~ ^[Yy]$ ]]
+ then
+ DisableMaintenanceMode
+ else
+ echo "Maintenance mode still enabled."
+ fi
+
+ exit 1
+}
+
#
# Check for root
#
# Set maintenance mode
#
echo "Set maintenance mode for Nextcloud..."
-cd "${nextcloudFileDir}"
-sudo -u "${webserverUser}" php occ maintenance:mode --on
-cd ~
+sudo -u "${webserverUser}" php ${nextcloudFileDir}/occ maintenance:mode --on
echo "Done"
echo
# Stop web server
#
echo "Stopping web server..."
-service "${webserverServiceName}" stop
+systemctl stop "${webserverServiceName}"
echo "Done"
echo
# Backup DB
#
echo "Backup Nextcloud database..."
+# MySQL/MariaDB:
mysqldump --single-transaction -h localhost -u "${dbUser}" -p"${dbPassword}" "${nextcloudDatabase}" > "${backupdir}/${fileNameBackupDb}"
+
+# PostgreSQL (uncomment if you are using PostgreSQL as Nextcloud database)
+#PGPASSWORD="${dbPassword}" pg_dump "${nextcloudDatabase}" -h localhost -U "${dbUser}" -f "${backupdir}/${fileNameBackupDb}"
echo "Done"
echo
# Start web server
#
echo "Starting web server..."
-service "${webserverServiceName}" start
+systemctl start "${webserverServiceName}"
echo "Done"
echo
#
# Disable maintenance mode
#
-echo "Switching off maintenance mode..."
-cd "${nextcloudFileDir}"
-sudo -u "${webserverUser}" php occ maintenance:mode --off
-cd ~
-echo "Done"
-echo
+DisableMaintenanceMode
#
# Delete old backups
#
if (( ${maxNrOfBackups} != 0 ))
-then
+then
nrOfBackups=$(ls -l ${backupMainDir} | grep -c ^d)
-
+
if (( ${nrOfBackups} > ${maxNrOfBackups} ))
then
echo "Removing old backups..."
ls -t ${backupMainDir} | tail -$(( nrOfBackups - maxNrOfBackups )) | while read dirToRemove; do
- echo "${dirToRemove}"
- rm -r ${backupMainDir}/${dirToRemove}
- echo "Done"
- echo
- done
+ echo "${dirToRemove}"
+ rm -r ${backupMainDir}/${dirToRemove}
+ echo "Done"
+ echo
+ done
fi
fi