NextcloudRestore.sh

   1 #!/bin/bash
   2
   3 #
   4 # Bash script for restoring backups of Nextcloud.
   5 # Usage: ./NextcloudRestore.sh <BackupName> (e.g. ./NextcloudRestore.sh 20170910_132703)
   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 # TODO: The directory where you store the Nextcloud backups
  18 backupMainDir="/mnt/Share/NextcloudBackups/"
  19 restore=$1
  20 currentRestoreDir="${mainBackupdir}/${restore}"
  21 # TODO: The directory of your Nextcloud installation (this is a directory under your web root)
  22 nextcloudFileDir="/var/www/nextcloud"
  23 # TODO: The directory of your Nextcloud data directory (outside the Nextcloud file directory)
  24 # If your data directory is located under Nextcloud's file directory (somewhere in the web root), the data directory should not be restored separately
  25 nextcloudDataDir="/var/nextcloud_data"
  26 # TODO: Your Nextcloud database name
  27 nextcloudDatabase="nextcloud_db"
  28 # TODO: Your Nextcloud database user
  29 dbUser="nextcloud_db_user"
  30 # TODO: The password of the Nextcloud database user
  31 dbPassword="mYpAsSw0rd"
  32 # TODO: Your webserver user
  33 webserverUser="www-data"
  34
  35 # File names for backup files
  36 # If you prefer other file names, you'll also have to change the NextcloudBackup.sh script.
  37 fileNameBackupFileDir="nextcloud-filedir.tar.gz"
  38 fileNameBackupDataDir="nextcloud-datadir.tar.gz"
  39 fileNameBackupDb="nextcloud-db.sql"
  40
  41 # Function for error messages
  42 errorecho() { cat <<< "$@" 1>&2; }
  43
  44 #
  45 # Check if parameter given
  46 #
  47 if [ $# != "1" ]
  48 then
  49     errorecho "ERROR: No backup name to restore given!"
  50         errorecho "Usage: NextcloudRestore.sh 'BackupDate'"
  51     exit 1
  52 fi
  53
  54 #
  55 # Check for root
  56 #
  57 if [ "$(id -u)" != "0" ]
  58 then
  59     errorecho "ERROR: This script has to be run as root!"
  60     exit 1
  61 fi
  62
  63 #
  64 # Check if backup dir exists
  65 #
  66 if [ ! -d "${currentRestoreDir}" ]
  67 then
  68          errorecho "ERROR: Backup ${restore} not found!"
  69     exit 1
  70 fi
  71
  72 #
  73 # Set maintenance mode
  74 #
  75 echo "Set maintenance mode for Nextcloud..."
  76 cd "${nextcloudFileDir}"
  77 sudo -u "${webserverUser}" php occ maintenance:mode --on
  78 cd ~
  79 echo "Done"
  80
  81 #
  82 # Stop webserver
  83 #
  84 echo "Stopping nginx..."
  85 service nginx stop
  86 echo "Done"
  87
  88 #
  89 # Delete old Nextcloud direcories
  90 #
  91 echo "Deleting old Nextcloud file directory..."
  92 rm -r "${nextcloudFileDir}"
  93 mkdir -p "${nextcloudFileDir}"
  94 echo "Done"
  95 echo "Deleting old Nextcloud data directory..."
  96 rm -r "${nextcloudDataDir}"
  97 mkdir -p "${nextcloudDataDir}"
  98 echo "Done"
  99
 100 #
 101 # Restore file and data directory
 102 #
 103 echo "Restoring Nextcloud file directory..."
 104 tar -xpzf "${currentRestoreDir}/${fileNameBackupFileDir}" -C "${nextcloudFileDir}"
 105 echo "Done"
 106 echo "Restoring Nextcloud data directory..."
 107 tar -xpzf "${currentRestoreDir}/${fileNameBackupDataDir}" -C "${nextcloudDataDir}"
 108 echo "Done"
 109
 110 #
 111 # Restore database
 112 #
 113 echo "Dropping old Nextcloud DB..."
 114 mysql -h localhost -u "${dbUser}" -p"${dbPassword}" -e "DROP DATABASE ${nextcloudDatabase}"
 115 echo "Done"
 116 echo "Creating new DB for Nextcloud..."
 117 mysql -h localhost -u "${dbUser}" -p"${dbPassword}" -e "CREATE DATABASE ${nextcloudDatabase}"
 118 echo "Done"
 119 echo "Restoring backup DB..."
 120 mysql -h localhost -u "${dbUser}" -p"${dbPassword}" "${nextcloudDatabase}" < "${currentRestoreDir}/${fileNameBackupDb}"
 121 echo "Done"
 122
 123 #
 124 # Start webserver
 125 #
 126 echo "Starting nginx..."
 127 service nginx start
 128 echo "Done"
 129
 130 #
 131 # Set directory permissions
 132 #
 133 echo "Setting directory permissions..."
 134 chown -R "${webserverUser}" "${nextcloudFileDir}"
 135 chown -R "${webserverUser}" "${nextcloudDataDir}"
 136 echo "Done"
 137
 138 #
 139 # Update the system data-fingerprint (see https://docs.nextcloud.com/server/12/admin_manual/configuration_server/occ_command.html#maintenance-commands-label)
 140 #
 141 echo "Updating the system data-fingerprint..."
 142 cd "${nextcloudFileDir}"
 143 sudo -u "${webserverUser}" php occ maintenance:data-fingerprint
 144 cd ~
 145 echo "Done"
 146
 147
 148 #
 149 # Restore hardened directory permissions
 150 #
 151 echo "Set hardened directory permissions..."
 152 find "${nextcloudFileDir}" -type f -print0 | xargs -0 chmod 0640
 153 find "${nextcloudFileDir}" -type d -print0 | xargs -0 chmod 0750
 154 chown -R root:"${webserverUser}" "${nextcloudFileDir}"
 155 chown -R "${webserverUser}":"${webserverUser}" "${nextcloudFileDir}/apps/"
 156 chown -R "${webserverUser}":"${webserverUser}" "${nextcloudFileDir}/config/"
 157 chown -R "${webserverUser}":"${webserverUser}" "${nextcloudFileDir}/themes/"
 158 chown -R "${webserverUser}":"${webserverUser}" "${nextcloudDataDir}"
 159 chown root:"${webserverUser}" "${nextcloudFileDir}/.htaccess"
 160 chown root:"${webserverUser}" "${nextcloudDataDir}/.htaccess"
 161 chmod 0644 "${nextcloudFileDir}/.htaccess"
 162 chmod 0644 "${nextcloudDataDir}/.htaccess"
 163 echo "Done"
 164
 165 #
 166 # Disbale maintenance mode
 167 #
 168 echo "Switching off maintenance mode..."
 169 cd "${nextcloudFileDir}"
 170 sudo -u "${webserverUser}" php occ maintenance:mode --off
 171 cd ~
 172 echo "Done"
 173
 174 echo "DONE!"
 175 echo "Backup ${restore} successfully restored."