X-Git-Url: https://git.p6c8.net/nextcloud-backup-restore.git/blobdiff_plain/371fa270c89ef7cb2929578394ea28c70cd9ff05..HEAD:/NextcloudBackup.sh?ds=inline

diff --git a/NextcloudBackup.sh b/NextcloudBackup.sh
index 5606883..d96ec3c 100644
--- a/NextcloudBackup.sh
+++ b/NextcloudBackup.sh
@@ -3,13 +3,20 @@
 #
 # Bash script for creating backups of Nextcloud.
 #
-# Version 2.1.0
+# Version 2.3.3
+#
+# 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)
+# 	- 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-18-04-lts-mit-nginx-mariadb-php-lets-encrypt-redis-und-fail2ban/
+# 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/
 #
 
 #
@@ -18,12 +25,15 @@
 # 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=$1
+backupMainDir=${1:-} 
 
 if [ -z "$backupMainDir" ]; then
 	# TODO: The directory where you store the Nextcloud backups (when not specified by args)
-    backupMainDir='/media/hdd/nextcloud_backup'
+	backupMainDir='/media/hdd/nextcloud_backup'
 else
 	backupMainDir=$(echo $backupMainDir | sed 's:/*$::')
 fi
@@ -31,14 +41,18 @@ fi
 currentDate=$(date +"%Y%m%d_%H%M%S")
 
 # 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 Matrix Synapse installation/lib dir
+# 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'
 
@@ -85,12 +99,15 @@ if [ "$useCompression" = true ] ; then
 	fileNameBackupDataDir='nextcloud-datadir.tar.gz'
 fi
 
-# TODO: Uncomment if you use local external storage
-#fileNameBackupExternalDataDir='nextcloud-external-datadir.tar'
-#
-#if [ "$useCompression" = true ] ; then
-#	fileNameBackupExternalDataDir='nextcloud-external-datadir.tar.gz'
-#fi
+fileNameBackupExternalDataDir=''
+
+if [ ! -z "${nextcloudLocalExternalDataDir+x}" ] ; then
+	fileNameBackupExternalDataDir='nextcloud-external-datadir.tar'
+
+	if [ "$useCompression" = true ] ; then
+		fileNameBackupExternalDataDir='nextcloud-external-datadir.tar.gz'
+	fi
+fi
 
 fileNameBackupDb='nextcloud-db.sql'
 
@@ -98,7 +115,7 @@ fileNameBackupDb='nextcloud-db.sql'
 errorecho() { cat <<< "$@" 1>&2; }
 
 function DisableMaintenanceMode() {
-	echo "Switching off maintenance mode..."
+	echo "$(date +"%H:%M:%S"): Switching off maintenance mode..."
 	sudo -u "${webserverUser}" php ${nextcloudFileDir}/occ maintenance:mode --off
 	echo "Done"
 	echo
@@ -143,18 +160,18 @@ fi
 #
 # Check if backup dir already exists
 #
-if [ ! -d "${backupdir}" ]
+if [ ! -d "${backupDir}" ]
 then
-	mkdir -p "${backupdir}"
+	mkdir -p "${backupDir}"
 else
-	errorecho "ERROR: The backup directory ${backupdir} already exists!"
+	errorecho "ERROR: The backup directory ${backupDir} already exists!"
 	exit 1
 fi
 
 #
 # Set maintenance mode
 #
-echo "Set maintenance mode for Nextcloud..."
+echo "$(date +"%H:%M:%S"): Set maintenance mode for Nextcloud..."
 sudo -u "${webserverUser}" php ${nextcloudFileDir}/occ maintenance:mode --on
 echo "Done"
 echo
@@ -162,7 +179,7 @@ echo
 #
 # Stop web server
 #
-echo "Stopping web server..."
+echo "$(date +"%H:%M:%S"): Stopping web server..."
 systemctl stop "${webserverServiceName}"
 echo "Done"
 echo
@@ -170,12 +187,12 @@ echo
 #
 # Backup file directory
 #
-echo "Creating backup of Nextcloud file directory..."
+echo "$(date +"%H:%M:%S"): Creating backup of Nextcloud file directory..."
 
 if [ "$useCompression" = true ] ; then
-	tar -cpzf "${backupdir}/${fileNameBackupFileDir}" -C "${nextcloudFileDir}" .
+	`$compressionCommand "${backupDir}/${fileNameBackupFileDir}" -C "${nextcloudFileDir}" .`
 else
-	tar -cpf "${backupdir}/${fileNameBackupFileDir}" -C "${nextcloudFileDir}" .
+	tar -cpf "${backupDir}/${fileNameBackupFileDir}" -C "${nextcloudFileDir}" .
 fi
 
 echo "Done"
@@ -184,63 +201,66 @@ echo
 #
 # Backup data directory
 #
-echo "Creating backup of Nextcloud data directory..."
+echo "$(date +"%H:%M:%S"): Creating backup of Nextcloud data directory..."
 
 if [ "$ignoreUpdaterBackups" = true ] ; then
 	echo "Ignoring updater backup directory"
 
 	if [ "$useCompression" = true ] ; then
-		tar -cpzf "${backupdir}/${fileNameBackupDataDir}"  --exclude="updater-*/backups/*" -C "${nextcloudDataDir}" .
+		`$compressionCommand "${backupDir}/${fileNameBackupDataDir}"  --exclude="updater-*/backups/*" -C "${nextcloudDataDir}" .`
 	else
-		tar -cpf "${backupdir}/${fileNameBackupDataDir}"  --exclude="updater-*/backups/*" -C "${nextcloudDataDir}" .
+		tar -cpf "${backupDir}/${fileNameBackupDataDir}"  --exclude="updater-*/backups/*" -C "${nextcloudDataDir}" .
 	fi
 else
 	if [ "$useCompression" = true ] ; then
-        tar -cpzf "${backupdir}/${fileNameBackupDataDir}"  -C "${nextcloudDataDir}" .
+		`$compressionCommand "${backupDir}/${fileNameBackupDataDir}"  -C "${nextcloudDataDir}" .`
 	else
-		tar -cpf "${backupdir}/${fileNameBackupDataDir}"  -C "${nextcloudDataDir}" .
+		tar -cpf "${backupDir}/${fileNameBackupDataDir}"  -C "${nextcloudDataDir}" .
 	fi
 fi
 
 echo "Done"
 echo
 
+#
 # Backup local external storage.
-# Uncomment if you use local external storage
-#echo "Creating backup of Nextcloud local external storage directory..."
+#
+if [ ! -z "${nextcloudLocalExternalDataDir+x}" ] ; then
+	echo "$(date +"%H:%M:%S"): Creating backup of Nextcloud local external storage directory..."
 
-#if [ "$useCompression" = true ] ; then
-#	tar -cpzf "${backupdir}/${fileNameBackupExternalDataDir}"  -C "${nextcloudLocalExternalDataDir}" .
-#else
-#	tar -cpf "${backupdir}/${fileNameBackupExternalDataDir}"  -C "${nextcloudLocalExternalDataDir}" .
-#fi
+	if [ "$useCompression" = true ] ; then
+		`$compressionCommand "${backupDir}/${fileNameBackupExternalDataDir}"  -C "${nextcloudLocalExternalDataDir}" .`
+	else
+		tar -cpf "${backupDir}/${fileNameBackupExternalDataDir}"  -C "${nextcloudLocalExternalDataDir}" .
+	fi
 
-#echo "Done"
-#echo
+	echo "Done"
+	echo
+fi
 
 #
 # Backup DB
 #
 if [ "${databaseSystem,,}" = "mysql" ] || [ "${databaseSystem,,}" = "mariadb" ]; then
-  	echo "Backup Nextcloud database (MySQL/MariaDB)..."
+  	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}"
+		mysqldump --single-transaction -h localhost -u "${dbUser}" -p"${dbPassword}" "${nextcloudDatabase}" > "${backupDir}/${fileNameBackupDb}"
 	fi
 
 	echo "Done"
 	echo
 elif [ "${databaseSystem,,}" = "postgresql" ] || [ "${databaseSystem,,}" = "pgsql" ]; then
-	echo "Backup Nextcloud database (PostgreSQL)..."
+	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}"
+		PGPASSWORD="${dbPassword}" pg_dump "${nextcloudDatabase}" -h localhost -U "${dbUser}" -f "${backupDir}/${fileNameBackupDb}"
 	fi
 	
 	echo "Done"
@@ -250,7 +270,7 @@ fi
 #
 # Start web server
 #
-echo "Starting web server..."
+echo "$(date +"%H:%M:%S"): Starting web server..."
 systemctl start "${webserverServiceName}"
 echo "Done"
 echo
@@ -267,9 +287,9 @@ if [ ${maxNrOfBackups} != 0 ]
 then
 	nrOfBackups=$(ls -l ${backupMainDir} | grep -c ^d)
 
-	if [[ ${nrOfBackups} > ${maxNrOfBackups} ]]
+	if [ ${nrOfBackups} -gt ${maxNrOfBackups} ]
 	then
-		echo "Removing old backups..."
+		echo "$(date +"%H:%M:%S"): Removing old backups..."
 		ls -t ${backupMainDir} | tail -$(( nrOfBackups - maxNrOfBackups )) | while read -r dirToRemove; do
 			echo "${dirToRemove}"
 			rm -r "${backupMainDir}/${dirToRemove:?}"
@@ -281,4 +301,4 @@ fi
 
 echo
 echo "DONE!"
-echo "Backup created: ${backupdir}"
+echo "$(date +"%H:%M:%S"): Backup created: ${backupDir}"