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}/${currentDate}/"
  22 # TODO: The directory of your Nextcloud installation (this is a directory under your web root)
  23 nextcloudFileDir="/var/www/nextcloud"
  24 # TODO: The directory of your Nextcloud data directory (outside the Nextcloud file directory)
  25 # If your data directory is located under Nextcloud's file directory (somewhere in the web root), the data directory should not be a separate part of the backup
  26 nextcloudDataDir="/var/nextcloud_data"
  27 # TODO: Your Nextcloud database name
  28 nextcloudDatabase="nextcloud_db"
  29 # TODO: Your Nextcloud database user
  30 dbUser="nextcloud_db_user"
  31 # TODO: The password of the Nextcloud database user
  32 dbPassword="mYpAsSw0rd"
  33 # TODO: Your webserver user
  34 webserverUser="www-data"
  35
  36 # File names for backup files
  37 # If you prefer other file names, you'll also have to change the NextcloudRestore.sh script.
  38 fileNameBackupFileDir="nextcloud-filedir.tar.gz"
  39 fileNameBackupDataDir="nextcloud-datadir.tar.gz"
  40 fileNameBackupDb="nextcloud-db.sql"
  41
  42 # Function for error messages
  43 errorecho() { cat <<< "$@" 1>&2; }
  44
  45 #
  46 # Check for root
  47 #
  48 if [ "$(id -u)" != "0" ]
  49 then
  50         errorecho "ERROR: This script has to be run as root!"
  51         exit 1
  52 fi
  53
  54 #
  55 # Check if backup dir already exists
  56 #
  57 if [ ! -d "${backupdir}" ]
  58 then
  59         mkdir -p "${backupdir}"
  60 else
  61         errorecho "ERROR: The backup directory ${backupdir} already exists!"
  62         exit 1
  63 fi
  64
  65 #
  66 # Set maintenance mode
  67 #
  68 echo "Set maintenance mode for Nextcloud..."
  69 cd "${nextcloudFileDir}"
  70 sudo -u "${webserverUser}" php occ maintenance:mode --on
  71 cd ~
  72 echo "Done"
  73
  74 #
  75 # Stop webserver
  76 #
  77 echo "Stopping nginx..."
  78 service nginx stop
  79 echo "Done"
  80
  81 #
  82 # Backup file and data directory
  83 #
  84 echo "Creating backup of Nextcloud file directory..."
  85 tar -cpzf "${backupdir}/${fileNameBackupFileDir}" -C "${nextcloudFileDir}" .
  86 echo "Done"
  87 echo "Creating backup of Nextcloud data directory..."
  88 tar -cpzf "${backupdir}/${fileNameBackupDataDir}"  -C "${nextcloudDataDir}" .
  89 echo "Done"
  90
  91 #
  92 # Backup DB
  93 #
  94 echo "Backup Nextcloud database..."
  95 mysqldump --single-transaction -h localhost -u "${dbUser}" -p"${dbPassword}" "${nextcloudDatabase}" > "${backupdir}/${fileNameBackupDb}"
  96 echo "Done"
  97
  98 #
  99 # Start webserver
 100 #
 101 service nginx start
 102
 103 #
 104 # Disable maintenance mode
 105 #
 106 cd "${nextcloudFileDir}"
 107 sudo -u "${webserverUser}" php occ maintenance:mode --off
 108 cd ~
 109
 110 echo "DONE!"
 111 echo "Backup created: ${backupdir}"