#
# 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/
+#
+# Version 2.3.1
+#
+# Requirements:
+# - pigz (https://zlib.net/pigz/) for using backup compression. If not available, you can use another compression algorithm (e.g. gzip)
+#
+# Supported database systems:
+# - MySQL/MariaDB
+# - PostgreSQL
+#
+# Usage:
+# - With backup directory specified in the script: ./NextcloudBackup.sh
+# - With backup directory specified by parameter: ./NextcloudBackup.sh <BackupDirectory> (e.g. ./NextcloudBackup.sh /media/hdd/nextcloud_backup)
+#
+# The script is based on an installation of Nextcloud using nginx and MariaDB, see https://decatec.de/home-server/nextcloud-auf-ubuntu-server-20-04-lts-mit-nginx-mariadb-php-lets-encrypt-redis-und-fail2ban/
#
#
# All entries which need to be customized are tagged with "TODO".
#
+# Make sure the script exits when any command fails
+set -Eeuo pipefail
+
# Variables
+backupMainDir=${1:-}
+
+if [ -z "$backupMainDir" ]; then
+ # TODO: The directory where you store the Nextcloud backups (when not specified by args)
+ backupMainDir='/media/hdd/nextcloud_backup'
+else
+ backupMainDir=$(echo $backupMainDir | sed 's:/*$::')
+fi
+
currentDate=$(date +"%Y%m%d_%H%M%S")
-# TODO: The directory where you store the Nextcloud backups
-backupMainDir="/mnt/Share/NextcloudBackups/"
+
# The actual directory of the current backup - this is a subdirectory of the main directory above with a timestamp
-backupdir="${backupMainDir}/${currentDate}/"
+backupdir="${backupMainDir}/${currentDate}"
+
+# TODO: Use compression for file/data dir
+# When this is the only script for backups, it's recommend to enable compression.
+# If the output of this script is used in another (compressing) backup (e.g. borg backup),
+# you should probably disable compression here and only enable compression of your main backup script.
+useCompression=true
+
+# TOOD: The bare tar command for using compression.
+# Use 'tar -cpzf' if you want to use gzip compression.
+compressionCommand="tar -I pigz -cpf"
+
# TODO: The directory of your Nextcloud installation (this is a directory under your web root)
-nextcloudFileDir="/var/www/nextcloud"
+nextcloudFileDir='/var/www/nextcloud'
+
# 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')
-webserverServiceName="nginx"
+nextcloudDataDir='/var/nextcloud_data'
+
+# TODO: The directory of your Nextcloud's local external storage.
+# Uncomment if you use local external storage.
+#nextcloudLocalExternalDataDir='/var/nextcloud_external_data'
+
+# TODO: The service name of the web server. Used to start/stop web server (e.g. 'systemctl start <webserverServiceName>')
+webserverServiceName='nginx'
+
+# TODO: Your web server user
+webserverUser='www-data'
+
+# TODO: The name of the database system (one of: mysql, mariadb, postgresql)
+databaseSystem='mariadb'
+
# TODO: Your Nextcloud database name
-nextcloudDatabase="nextcloud_db"
+nextcloudDatabase='nextcloud_db'
+
# TODO: Your Nextcloud database user
-dbUser="nextcloud_db_user"
+dbUser='nextcloud_db_user'
+
# TODO: The password of the Nextcloud database user
-dbPassword="mYpAsSw0rd"
-# TODO: Your web server user
-webserverUser="www-data"
+dbPassword='mYpAsSw0rd'
+
# TODO: The maximum number of backups to keep (when set to 0, all backups are kept)
maxNrOfBackups=0
+# TODO: Ignore updater's backup directory in the data directory to save space
+# Set to true to ignore the backup directory
+ignoreUpdaterBackups=false
+
# File names for backup files
# If you prefer other file names, you'll also have to change the NextcloudRestore.sh script.
-fileNameBackupFileDir="nextcloud-filedir.tar.gz"
-fileNameBackupDataDir="nextcloud-datadir.tar.gz"
-fileNameBackupDb="nextcloud-db.sql"
+fileNameBackupFileDir='nextcloud-filedir.tar'
+fileNameBackupDataDir='nextcloud-datadir.tar'
+
+if [ "$useCompression" = true ] ; then
+ fileNameBackupFileDir='nextcloud-filedir.tar.gz'
+ fileNameBackupDataDir='nextcloud-datadir.tar.gz'
+fi
+
+fileNameBackupExternalDataDir=''
+
+if [ ! -z "${nextcloudLocalExternalDataDir+x}" ] ; then
+ fileNameBackupExternalDataDir='nextcloud-external-datadir.tar'
+
+ if [ "$useCompression" = true ] ; then
+ fileNameBackupExternalDataDir='nextcloud-external-datadir.tar.gz'
+ fi
+fi
+
+fileNameBackupDb='nextcloud-db.sql'
# Function for error messages
errorecho() { cat <<< "$@" 1>&2; }
+function DisableMaintenanceMode() {
+ echo "$(date +"%H:%M:%S"): 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
+
+ echo "Starting web server..."
+ systemctl start "${webserverServiceName}"
+ echo "Done"
+ echo
+
+ exit 1
+}
+
+#
+# Print information
+#
+echo "Backup directory: ${backupMainDir}"
+
#
# Check for root
#
#
# Set maintenance mode
#
-echo "Set maintenance mode for Nextcloud..."
-cd "${nextcloudFileDir}"
-sudo -u "${webserverUser}" php occ maintenance:mode --on
-cd ~
+echo "$(date +"%H:%M:%S"): Set maintenance mode for Nextcloud..."
+sudo -u "${webserverUser}" php ${nextcloudFileDir}/occ maintenance:mode --on
echo "Done"
echo
#
# Stop web server
#
-echo "Stopping web server..."
-service "${webserverServiceName}" stop
+echo "$(date +"%H:%M:%S"): Stopping web server..."
+systemctl stop "${webserverServiceName}"
echo "Done"
echo
#
-# Backup file and data directory
+# Backup file directory
#
-echo "Creating backup of Nextcloud file directory..."
-tar -cpzf "${backupdir}/${fileNameBackupFileDir}" -C "${nextcloudFileDir}" .
+echo "$(date +"%H:%M:%S"): Creating backup of Nextcloud file directory..."
+
+if [ "$useCompression" = true ] ; then
+ `$compressionCommand "${backupdir}/${fileNameBackupFileDir}" -C "${nextcloudFileDir}" .`
+else
+ tar -cpf "${backupdir}/${fileNameBackupFileDir}" -C "${nextcloudFileDir}" .
+fi
+
echo "Done"
echo
-echo "Creating backup of Nextcloud data directory..."
-tar -cpzf "${backupdir}/${fileNameBackupDataDir}" -C "${nextcloudDataDir}" .
+#
+# Backup data directory
+#
+echo "$(date +"%H:%M:%S"): Creating backup of Nextcloud data directory..."
+
+if [ "$ignoreUpdaterBackups" = true ] ; then
+ echo "Ignoring updater backup directory"
+
+ if [ "$useCompression" = true ] ; then
+ `$compressionCommand "${backupdir}/${fileNameBackupDataDir}" --exclude="updater-*/backups/*" -C "${nextcloudDataDir}" .`
+ else
+ tar -cpf "${backupdir}/${fileNameBackupDataDir}" --exclude="updater-*/backups/*" -C "${nextcloudDataDir}" .
+ fi
+else
+ if [ "$useCompression" = true ] ; then
+ `$compressionCommand "${backupdir}/${fileNameBackupDataDir}" -C "${nextcloudDataDir}" .`
+ else
+ tar -cpf "${backupdir}/${fileNameBackupDataDir}" -C "${nextcloudDataDir}" .
+ fi
+fi
+
echo "Done"
echo
+#
+# Backup local external storage.
+#
+if [ ! -z "${nextcloudLocalExternalDataDir+x}" ] ; then
+ echo "$(date +"%H:%M:%S"): Creating backup of Nextcloud local external storage directory..."
+
+ if [ "$useCompression" = true ] ; then
+ `$compressionCommand "${backupdir}/${fileNameBackupExternalDataDir}" -C "${nextcloudLocalExternalDataDir}" .`
+ else
+ tar -cpf "${backupdir}/${fileNameBackupExternalDataDir}" -C "${nextcloudLocalExternalDataDir}" .
+ fi
+
+ echo "Done"
+ echo
+fi
+
#
# Backup DB
#
-echo "Backup Nextcloud database..."
-mysqldump --single-transaction -h localhost -u "${dbUser}" -p"${dbPassword}" "${nextcloudDatabase}" > "${backupdir}/${fileNameBackupDb}"
-echo "Done"
-echo
+if [ "${databaseSystem,,}" = "mysql" ] || [ "${databaseSystem,,}" = "mariadb" ]; then
+ echo "$(date +"%H:%M:%S"): Backup Nextcloud database (MySQL/MariaDB)..."
+
+ if ! [ -x "$(command -v mysqldump)" ]; then
+ errorecho "ERROR: MySQL/MariaDB not installed (command mysqldump not found)."
+ errorecho "ERROR: No backup of database possible!"
+ else
+ mysqldump --single-transaction -h localhost -u "${dbUser}" -p"${dbPassword}" "${nextcloudDatabase}" > "${backupdir}/${fileNameBackupDb}"
+ fi
+
+ echo "Done"
+ echo
+elif [ "${databaseSystem,,}" = "postgresql" ] || [ "${databaseSystem,,}" = "pgsql" ]; then
+ echo "$(date +"%H:%M:%S"): Backup Nextcloud database (PostgreSQL)..."
+
+ if ! [ -x "$(command -v pg_dump)" ]; then
+ errorecho "ERROR: PostgreSQL not installed (command pg_dump not found)."
+ errorecho "ERROR: No backup of database possible!"
+ else
+ PGPASSWORD="${dbPassword}" pg_dump "${nextcloudDatabase}" -h localhost -U "${dbUser}" -f "${backupdir}/${fileNameBackupDb}"
+ fi
+
+ echo "Done"
+ echo
+fi
#
# Start web server
#
-echo "Starting web server..."
-service "${webserverServiceName}" start
+echo "$(date +"%H:%M:%S"): Starting web server..."
+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
+if [ ${maxNrOfBackups} != 0 ]
+then
nrOfBackups=$(ls -l ${backupMainDir} | grep -c ^d)
-
- if (( ${nrOfBackups} > ${maxNrOfBackups} ))
+
+ if [ ${nrOfBackups} -gt ${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 "$(date +"%H:%M:%S"): Removing old backups..."
+ ls -t ${backupMainDir} | tail -$(( nrOfBackups - maxNrOfBackups )) | while read -r dirToRemove; do
+ echo "${dirToRemove}"
+ rm -r "${backupMainDir}/${dirToRemove:?}"
+ echo "Done"
+ echo
+ done
fi
fi
echo
echo "DONE!"
-echo "Backup created: ${backupdir}"
+echo "$(date +"%H:%M:%S"): Backup created: ${backupdir}"
git.p6c8.net / nextcloud-backup-restore.git / blobdiff