NextcloudBackup.sh

   1 #!/bin/bash
   2
   3 #
   4 # Bash script for creating backups of Nextcloud.
   5 # Usage: ./NextcloudBackup.sh
   6 #
   7 # The script is based on an installation of Nextcloud using nginx and MariaDB, see https://decatec.de/home-server/nextcloud-auf-ubuntu-server-mit-nginx-mariadb-php-lets-encrypt-redis-und-fail2ban/
   8 #
   9
  10 #
  11 # IMPORTANT
  12 # You have to customize this script (directories, users, etc.) for your actual environment.
  13 # All entries which need to be customized are tagged with "TODO".
  14 #
  15
  16 # Variables
  17 currentDate=$(date +"%Y%m%d_%H%M%S")
  18 # TODO: The directory where you store the Nextcloud backups
  19 backupMainDir="/mnt/Share/NextcloudBackups/"
  20 # The actual directory of the current backup - this is is subdirectory of the main directory above with a timestamp
  21 backupdir="${backupMainDir}/${currentDate}/"
  22 # TODO: The directory of your Nextcloud installation (this is a directory under your web root)
  23 nextcloudFileDir="/var/www/nextcloud"
  24 # TODO: The directory of your Nextcloud data directory (outside the Nextcloud file directory)
  25 nextcloudDataDir="/var/nextcloud_data"
  26 # TODO: Your Nextcloud database name
  27 nextcloudDatabase="nextcloud_db"
  28 # TODO: Your Nextcloud database user
  29 dbUser="nextcloud_db_user"
  30 # TODO: The password of the Nextcloud database user
  31 dbPassword="MeInPasSw0rT"
  32 # TODO: Your webserver user
  33 webserverUser="www-data"
  34
  35 # File names for backup files
  36 # If you prefer other file names, you'll also have to change the NextcloudRestore.sh script.
  37 fileNameBackupFileDir="nextcloud-filedir.tar.gz"
  38 fileNameBackupDataDir="nextcloud-datadir.tar.gz"
  39 fileNameBackupDb="nextcloud-db.sql"
  40
  41 # Function for error messages
  42 errorecho() { cat <<< "$@" 1>&2; }
  43
  44 #
  45 # Check for root
  46 #
  47 if [ "$(id -u)" != "0" ]
  48 then
  49         errorecho "ERROR: This script has to be run as root!"
  50         exit 1
  51 fi
  52
  53 #
  54 # Check if backup dir already exists
  55 #
  56 if [ ! -d "${backupdir}" ]
  57 then
  58         mkdir -p "${backupdir}"
  59 else
  60         errorecho "ERROR: The backup directory ${backupdir} already exists!"
  61         exit 1
  62 fi
  63
  64 #
  65 # Set maintenance mode
  66 #
  67 echo "Set maintenance mode for Nextcloud..."
  68 cd "${nextcloudFileDir}"
  69 sudo -u "${webserverUser}" php occ maintenance:mode --on
  70 cd ~
  71 echo "Done"
  72
  73 #
  74 # Stop webserver
  75 #
  76 echo "Stopping nginx..."
  77 service nginx stop
  78 echo "Done"
  79
  80 #
  81 # Backup file and data directory
  82 #
  83 echo "Creating backup of Nextcloud file directory..."
  84 tar -cpzf "${backupdir}/${fileNameBackupFileDir}" -C "${nextcloudFileDir}" .
  85 echo "Done"
  86 echo "Creating backup of Nextcloud data directory..."
  87 tar -cpzf "${backupdir}/${fileNameBackupDataDir}"  -C "${nextcloudDataDir}" .
  88 echo "Done"
  89
  90 #
  91 # Backup DB
  92 #
  93 echo "Backup Nextcloud database..."
  94 mysqldump --single-transaction -h localhost -u "${dbUser}" -p"${dbPassword}" "${nextcloudDatabase}" > "${backupdir}/${fileNameBackupDb}"
  95 echo "Done"
  96
  97 #
  98 # Start webserver
  99 #
 100 service nginx start
 101
 102 #
 103 # Disable maintenance mode
 104 #
 105 cd "${nextcloudFileDir}"
 106 sudo -u "${webserverUser}" php occ maintenance:mode --off
 107 cd ~
 108
 109 echo "DONE!"
 110 echo "Backup created: ${backupdir}"