NextcloudRestore.sh

   1 #!/bin/bash
   2
   3 #
   4 # Bash script for restoring backups of Nextcloud.
   5 # Usage: ./NextcloudRestor.sh <BackupName> (e.g. ./NextcloudRestor.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}/${restore}"
  21 # TODO: The directory of your Nextcloud installation (this is a directory under your web root)
  22 nextcloudFileDir="/var/www/nextcloud"
  23 # TODO: The directory of your Nextcloud data directory (outside the Nextcloud file directory)
  24 nextcloudDataDir="/var/nextcloud_data"
  25 # TODO: Your Nextcloud database name
  26 nextcloudDatabase="nextcloud_db"
  27 # TODO: Your Nextcloud database user
  28 dbUser="nextcloud_db_user"
  29 # TODO: The password of the Nextcloud database user
  30 dbPassword="MeInPasSw0rT"
  31 # TODO: Your webserver user
  32 webserverUser="www-data"
  33
  34 # File names for backup files
  35 # If you prefer other file names, you'll also have to change the NextcloudBackup.sh script.
  36 fileNameBackupFileDir="nextcloud-filedir.tar.gz"
  37 fileNameBackupDataDir="nextcloud-datadir.tar.gz"
  38 fileNameBackupDb="nextcloud-db.sql"
  39
  40 # Function for error messages
  41 errorecho() { cat <<< "$@" 1>&2; }
  42
  43 #
  44 # Check if parameter given
  45 #
  46 if [ $# != "1" ]
  47 then
  48     errorecho "ERROR: No backup name to restore given!"
  49         errorecho "Usage: NextcloudRestore.sh 'BackupDate'"
  50     exit 1
  51 fi
  52
  53 #
  54 # Check for root
  55 #
  56 if [ "$(id -u)" != "0" ]
  57 then
  58     errorecho "ERROR: This script has to be run as root!"
  59     exit 1
  60 fi
  61
  62 #
  63 # Check if backup dir exists
  64 #
  65 if [ ! -d "${currentRestoreDir}" ]
  66 then
  67          errorecho "ERROR: Backup ${restore} not found!"
  68     exit 1
  69 fi
  70
  71 #
  72 # Set maintenance mode
  73 #
  74 echo "Set maintenance mode for Nextcloud..."
  75 cd "${nextcloudFileDir}"
  76 sudo -u "${webserverUser}" php occ maintenance:mode --on
  77 cd ~
  78 echo "Done"
  79
  80 #
  81 # Stop webserver
  82 #
  83 echo "Stopping nginx..."
  84 service nginx stop
  85 echo "Done"
  86
  87 #
  88 # Delete old Nextcloud direcories
  89 #
  90 echo "Deleting old Nextcloud file directory..."
  91 rm -r "${nextcloudFileDir}"
  92 mkdir -p "${nextcloudFileDir}"
  93 echo "Done"
  94 echo "Deleting old Nextcloud data directory..."
  95 rm -r "${nextcloudDataDir}"
  96 mkdir -p "${nextcloudDataDir}"
  97 echo "Done"
  98
  99 #
 100 # Restore file and data directory
 101 #
 102 echo "Restoring Nextcloud file directory..."
 103 tar -xpzf "${currentRestoreDir}/${fileNameBackupFileDir}" -C "${nextcloudFileDir}"
 104 echo "Done"
 105 echo "Restoring Nextcloud data directory..."
 106 tar -xpzf "${currentRestoreDir}/${fileNameBackupDataDir}" -C "${nextcloudDataDir}"
 107 echo "Done"
 108
 109 #
 110 # Restore database
 111 #
 112 echo "Dropping old Nextcloud DB..."
 113 mysql -h localhost -u "${dbUser}" -p"${dbPassword}" -e "DROP DATABASE ${nextcloudDatabase}"
 114 echo "Done"
 115 echo "Creating new DB for Nextcloud..."
 116 mysql -h localhost -u "${dbUser}" -p"${dbPassword}" -e "CREATE DATABASE ${nextcloudDatabase}"
 117 echo "Done"
 118 echo "Restoring backup DB..."
 119 mysql -h localhost -u "${dbUser}" -p"${dbPassword}" "${nextcloudDatabase}" < "${currentRestoreDir}/${fileNameBackupDb}"
 120 echo "Done"
 121
 122 #
 123 # Start webserver
 124 #
 125 echo "Starting nginx..."
 126 service nginx start
 127 echo "Done"
 128
 129 #
 130 # Set directory permissions
 131 #
 132 echo "Setting directory permissions..."
 133 chown -R "${webserverUser}" "${nextcloudFileDir}"
 134 chown -R "${webserverUser}" "${nextcloudDataDir}"
 135 echo "Done"
 136
 137 #
 138 # Update the system data-fingerprint (see https://docs.nextcloud.com/server/12/admin_manual/configuration_server/occ_command.html#maintenance-commands-label)
 139 #
 140 echo "Updating the system data-fingerprint..."
 141 cd "${nextcloudFileDir}"
 142 sudo -u "${webserverUser}" php occ maintenance:data-fingerprint
 143 cd ~
 144 echo "Done"
 145
 146
 147 #
 148 # Restore hardened directory permissions
 149 #
 150 echo "Set hardened directory permissions..."
 151 find "${nextcloudFileDir}" -type f -print0 | xargs -0 chmod 0640
 152 find "${nextcloudFileDir}" -type d -print0 | xargs -0 chmod 0750
 153 chown -R root:"${webserverUser}" "${nextcloudFileDir}"
 154 chown -R "${webserverUser}":"${webserverUser}" "${nextcloudFileDir}/apps/"
 155 chown -R "${webserverUser}":"${webserverUser}" "${nextcloudFileDir}/config/"
 156 chown -R "${webserverUser}":"${webserverUser}" "${nextcloudFileDir}/themes/"
 157 chown -R "${webserverUser}":"${webserverUser}" "${nextcloudDataDir}"
 158 chown root:"${webserverUser}" "${nextcloudFileDir}/.htaccess"
 159 chown root:"${webserverUser}" "${nextcloudDataDir}/.htaccess"
 160 chmod 0644 "${nextcloudFileDir}/.htaccess"
 161 chmod 0644 "${nextcloudDataDir}/.htaccess"
 162 echo "Done"
 163
 164 #
 165 # Disbale maintenance mode
 166 #
 167 echo "Switching off maintenance mode..."
 168 cd "${nextcloudFileDir}"
 169 sudo -u "${webserverUser}" php occ maintenance:mode --off
 170 cd ~
 171 echo "Done"
 172
 173 echo "DONE!"
 174 echo "Backup ${restore} successfully restored."