NextcloudRestore.sh

   1 #!/bin/bash
   2
   3 #
   4 # Bash script for restoring backups of Nextcloud.
   5 #
   6 # Version 2.1.1
   7 #
   8 # Usage:
   9 #   - With backup directory specified in the script: ./NextcloudRestore.sh <BackupName> (e.g. ./NextcloudRestore.sh 20170910_132703)
  10 #   - With backup directory specified by parameter: ./NextcloudRestore.sh <BackupName> <BackupDirectory> (e.g. ./NextcloudRestore.sh 20170910_132703 /media/hdd/nextcloud_backup)
  11 #
  12 # 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/
  13 #
  14
  15 #
  16 # IMPORTANT
  17 # You have to customize this script (directories, users, etc.) for your actual environment.
  18 # All entries which need to be customized are tagged with "TODO".
  19 #
  20
  21 # Variables
  22 restore=$1
  23 backupMainDir=$2
  24
  25 if [ -z "$backupMainDir" ]; then
  26         # TODO: The directory where you store the Nextcloud backups (when not specified by args)
  27     backupMainDir='/media/hdd/nextcloud_backup'
  28 fi
  29
  30 echo "Backup directory: $backupMainDir"
  31
  32 # TODO: Set this to true, if the backup was created with compression enabled, otherwiese false.
  33 useCompression=true
  34
  35 currentRestoreDir="${backupMainDir}/${restore}"
  36
  37 # TODO: The directory of your Nextcloud installation (this is a directory under your web root)
  38 nextcloudFileDir='/var/www/nextcloud'
  39
  40 # TODO: The directory of your Nextcloud data directory (outside the Nextcloud file directory)
  41 # If your data directory is located under Nextcloud's file directory (somewhere in the web root), the data directory should not be restored separately
  42 nextcloudDataDir='/var/nextcloud_data'
  43
  44 # TODO: The directory of your Nextcloud's local external storage.
  45 # Uncomment if you use local external storage.
  46 #nextcloudLocalExternalDataDir='/var/nextcloud_external_data'
  47
  48 # TODO: The service name of the web server. Used to start/stop web server (e.g. 'systemctl start <webserverServiceName>')
  49 webserverServiceName='nginx'
  50
  51 # TODO: Your web server user
  52 webserverUser='www-data'
  53
  54 # TODO: The name of the database system (one of: mysql, mariadb, postgresql)
  55 databaseSystem='mariadb'
  56
  57 # TODO: Your Nextcloud database name
  58 nextcloudDatabase='nextcloud_db'
  59
  60 # TODO: Your Nextcloud database user
  61 dbUser='nextcloud_db_user'
  62
  63 # TODO: The password of the Nextcloud database user
  64 dbPassword='mYpAsSw0rd'
  65
  66 # File names for backup files
  67 # If you prefer other file names, you'll also have to change the NextcloudBackup.sh script.
  68 fileNameBackupFileDir='nextcloud-filedir.tar'
  69 fileNameBackupDataDir='nextcloud-datadir.tar'
  70
  71 if [ "$useCompression" = true ] ; then
  72     fileNameBackupFileDir='nextcloud-filedir.tar.gz'
  73     fileNameBackupDataDir='nextcloud-datadir.tar.gz'
  74 fi
  75
  76 # TODO: Uncomment if you use local external storage
  77 #fileNameBackupExternalDataDir='nextcloud-external-datadir.tar'
  78 #
  79 #if [ "$useCompression" = true ] ; then
  80 #    fileNameBackupExternalDataDir='nextcloud-external-datadir.tar.gz'
  81 #fi
  82
  83 fileNameBackupDb='nextcloud-db.sql'
  84
  85 # Function for error messages
  86 errorecho() { cat <<< "$@" 1>&2; }
  87
  88 #
  89 # Check if parameter(s) given
  90 #
  91 if [ $# != "1" ] && [ $# != "2" ]
  92 then
  93     errorecho "ERROR: No backup name to restore given, or wrong number of parameters!"
  94     errorecho "Usage: NextcloudRestore.sh 'BackupDate' ['BackupDirectory']"
  95     exit 1
  96 fi
  97
  98 #
  99 # Check for root
 100 #
 101 if [ "$(id -u)" != "0" ]
 102 then
 103     errorecho "ERROR: This script has to be run as root!"
 104     exit 1
 105 fi
 106
 107 #
 108 # Check if backup dir exists
 109 #
 110 if [ ! -d "${currentRestoreDir}" ]
 111 then
 112         errorecho "ERROR: Backup ${restore} not found!"
 113     exit 1
 114 fi
 115
 116 #
 117 # Check if the commands for restoring the database are available
 118 #
 119 if [ "${databaseSystem,,}" = "mysql" ] || [ "${databaseSystem,,}" = "mariadb" ]; then
 120     if ! [ -x "$(command -v mysql)" ]; then
 121                 errorecho "ERROR: MySQL/MariaDB not installed (command mysql not found)."
 122                 errorecho "ERROR: No restore of database possible!"
 123         errorecho "Cancel restore"
 124         exit 1
 125     fi
 126 elif [ "${databaseSystem,,}" = "postgresql" ] || [ "${databaseSystem,,}" = "pgsql" ]; then
 127     if ! [ -x "$(command -v psql)" ]; then
 128                 errorecho "ERROR: PostgreSQL not installed (command psql not found)."
 129                 errorecho "ERROR: No restore of database possible!"
 130         errorecho "Cancel restore"
 131         exit 1
 132         fi
 133 fi
 134
 135 #
 136 # Set maintenance mode
 137 #
 138 echo "Set maintenance mode for Nextcloud..."
 139 sudo -u "${webserverUser}" php ${nextcloudFileDir}/occ maintenance:mode --on
 140 echo "Done"
 141 echo
 142
 143 #
 144 # Stop web server
 145 #
 146 echo "Stopping web server..."
 147 systemctl stop "${webserverServiceName}"
 148 echo "Done"
 149 echo
 150
 151 #
 152 # Delete old Nextcloud directories
 153 #
 154
 155 # File directory
 156 echo "Deleting old Nextcloud file directory..."
 157 rm -r "${nextcloudFileDir}"
 158 mkdir -p "${nextcloudFileDir}"
 159 echo "Done"
 160 echo
 161
 162 # Data directory
 163 echo "Deleting old Nextcloud data directory..."
 164 rm -r "${nextcloudDataDir}"
 165 mkdir -p "${nextcloudDataDir}"
 166 echo "Done"
 167 echo
 168
 169 # Local external storage
 170 # TODO: Uncomment if you use local external storage
 171 #echo "Deleting old Nextcloud local external storage directory..."
 172 #rm -r "${nextcloudLocalExternalDataDir}"
 173 #mkdir -p "${nextcloudLocalExternalDataDir}"
 174 #echo "Done"
 175 #echo
 176
 177 #
 178 # Restore file and data directory
 179 #
 180
 181 # File directory
 182 echo "Restoring Nextcloud file directory..."
 183
 184 if [ "$useCompression" = true ] ; then
 185     tar -xmpzf "${currentRestoreDir}/${fileNameBackupFileDir}" -C "${nextcloudFileDir}"
 186 else
 187     tar -xmpf "${currentRestoreDir}/${fileNameBackupFileDir}" -C "${nextcloudFileDir}"
 188 fi
 189
 190 echo "Done"
 191 echo
 192
 193 # Data directory
 194 echo "Restoring Nextcloud data directory..."
 195
 196 if [ "$useCompression" = true ] ; then
 197     tar -xmpzf "${currentRestoreDir}/${fileNameBackupDataDir}" -C "${nextcloudDataDir}"
 198 else
 199     tar -xmpf "${currentRestoreDir}/${fileNameBackupDataDir}" -C "${nextcloudDataDir}"
 200 fi
 201
 202 echo "Done"
 203 echo
 204
 205 # Local external storage
 206 # TODO: Uncomment if you use local external storage
 207 #echo "Restoring Nextcloud data directory..."
 208 #
 209 #if [ "$useCompression" = true ] ; then
 210 #    tar -xmpzf "${currentRestoreDir}/${fileNameBackupExternalDataDir}" -C "${nextcloudLocalExternalDataDir}"
 211 #else
 212 #    tar -xmpf "${currentRestoreDir}/${fileNameBackupExternalDataDir}" -C "${nextcloudLocalExternalDataDir}"
 213 #fi
 214 #
 215 #echo "Done"
 216 #echo
 217
 218 #
 219 # Restore database
 220 #
 221 echo "Dropping old Nextcloud DB..."
 222
 223 if [ "${databaseSystem,,}" = "mysql" ] || [ "${databaseSystem,,}" = "mariadb" ]; then
 224     mysql -h localhost -u "${dbUser}" -p"${dbPassword}" -e "DROP DATABASE ${nextcloudDatabase}"
 225 elif [ "${databaseSystem,,}" = "postgresql" ]; then
 226         sudo -u postgres psql -c "DROP DATABASE ${nextcloudDatabase};"
 227 fi
 228
 229 echo "Done"
 230 echo
 231
 232 echo "Creating new DB for Nextcloud..."
 233
 234 if [ "${databaseSystem,,}" = "mysql" ] || [ "${databaseSystem,,}" = "mariadb" ]; then
 235     # Use this if the databse from the backup uses UTF8 with multibyte support (e.g. for emoijs in filenames):
 236     mysql -h localhost -u "${dbUser}" -p"${dbPassword}" -e "CREATE DATABASE ${nextcloudDatabase} CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci"
 237     # TODO: Use this if the database from the backup DOES NOT use UTF8 with multibyte support (e.g. for emoijs in filenames):
 238     #mysql -h localhost -u "${dbUser}" -p"${dbPassword}" -e "CREATE DATABASE ${nextcloudDatabase}"
 239 elif [ "${databaseSystem,,}" = "postgresql" ] || [ "${databaseSystem,,}" = "pgsql" ]; then
 240     sudo -u postgres psql -c "CREATE DATABASE ${nextcloudDatabase} WITH OWNER ${dbUser} TEMPLATE template0 ENCODING \"UTF8\";"
 241 fi
 242
 243 echo "Done"
 244 echo
 245
 246 echo "Restoring backup DB..."
 247
 248 if [ "${databaseSystem,,}" = "mysql" ] || [ "${databaseSystem,,}" = "mariadb" ]; then
 249         mysql -h localhost -u "${dbUser}" -p"${dbPassword}" "${nextcloudDatabase}" < "${currentRestoreDir}/${fileNameBackupDb}"
 250 elif [ "${databaseSystem,,}" = "postgresql" ] || [ "${databaseSystem,,}" = "pgsql" ]; then
 251         sudo -u postgres psql "${nextcloudDatabase}" < "${currentRestoreDir}/${fileNameBackupDb}"
 252 fi
 253
 254 echo "Done"
 255 echo
 256
 257 #
 258 # Start web server
 259 #
 260 echo "Starting web server..."
 261 systemctl start "${webserverServiceName}"
 262 echo "Done"
 263 echo
 264
 265 #
 266 # Set directory permissions
 267 #
 268 echo "Setting directory permissions..."
 269 chown -R "${webserverUser}":"${webserverUser}" "${nextcloudFileDir}"
 270 chown -R "${webserverUser}":"${webserverUser}" "${nextcloudDataDir}"
 271 # TODO: Uncomment if you use local external storage
 272 #chown -R "${webserverUser}":"${webserverUser}" "${nextcloudLocalExternalDataDir}"
 273 echo "Done"
 274 echo
 275
 276 #
 277 # Update the system data-fingerprint (see https://docs.nextcloud.com/server/latest/admin_manual/configuration_server/occ_command.html#maintenance-commands-label)
 278 #
 279 echo "Updating the system data-fingerprint..."
 280 sudo -u "${webserverUser}" php ${nextcloudFileDir}/occ maintenance:data-fingerprint
 281 echo "Done"
 282 echo
 283
 284 #
 285 # Disbale maintenance mode
 286 #
 287 echo "Switching off maintenance mode..."
 288 sudo -u "${webserverUser}" php ${nextcloudFileDir}/occ maintenance:mode --off
 289 echo "Done"
 290 echo
 291
 292 echo
 293 echo "DONE!"
 294 echo "Backup ${restore} successfully restored."