mirror of
https://github.com/nextcloud/all-in-one.git
synced 2024-11-11 09:23:36 +08:00
226 lines
8.3 KiB
Bash
226 lines
8.3 KiB
Bash
#!/bin/bash
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# Variables
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BORG_BACKUP_DIRECTORY="/mnt/borgbackup/borg"
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# Functions
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get_start_time(){
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START_TIME=$(date +%s)
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CURRENT_DATE=$(date --date @"$START_TIME" +"%Y%m%d_%H%M%S")
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CURRENT_DATE_READABLE=$(date --date @"$START_TIME" +"%d.%m.%Y - %H:%M:%S")
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}
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get_expiration_time() {
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END_TIME=$(date +%s)
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END_DATE_READABLE=$(date --date @"$END_TIME" +"%d.%m.%Y - %H:%M:%S")
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DURATION=$((END_TIME-START_TIME))
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DURATION_SEC=$((DURATION % 60))
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DURATION_MIN=$(((DURATION / 60) % 60))
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DURATION_HOUR=$((DURATION / 3600))
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DURATION_READABLE=$(printf "%02d hours %02d minutes %02d seconds" $DURATION_HOUR $DURATION_MIN $DURATION_SEC)
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}
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# Export defaults
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export BORG_PASSPHRASE="$BORG_PASSWORD"
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export BORG_UNKNOWN_UNENCRYPTED_REPO_ACCESS_IS_OK=yes
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export BORG_RELOCATED_REPO_ACCESS_IS_OK=yes
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# Test if all volumes aren't empty
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VOLUME_DIRS="$(find /nextcloud_aio_volumes -mindepth 1 -maxdepth 1 -type d)"
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mapfile -t VOLUME_DIRS <<< "$VOLUME_DIRS"
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for directory in "${VOLUME_DIRS[@]}"; do
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if ! mountpoint -q "$directory"; then
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echo "$directory is not a mountpoint which is not allowed."
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exit 1
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fi
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done
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# Check if target is mountpoint
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if ! mountpoint -q /mnt/borgbackup; then
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echo "/mnt/borgbackup is not a mountpoint which is not allowed"
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exit 1
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fi
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# Check if target is empty
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if [ "$BORG_MODE" != backup ] && ! [ -f "$BORG_BACKUP_DIRECTORY/config" ]; then
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echo "The repository is empty. cannot perform check or restore."
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exit 1
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fi
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# Break the borg lock if it exists
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if [ -f "$BORG_BACKUP_DIRECTORY/lock.roster" ]; then
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echo "Breaking the borg lock..."
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if ! borg break-lock "$BORG_BACKUP_DIRECTORY"; then
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echo "Could not break the borg lock!"
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exit 1
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fi
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fi
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# Create lockfile
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if [ "$BORG_MODE" = backup ] || [ "$BORG_MODE" = restore ]; then
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touch "/nextcloud_aio_volumes/nextcloud_aio_database_dump/backup-is-running"
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fi
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# Do the backup
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if [ "$BORG_MODE" = backup ]; then
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# Test if important files are present
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if ! [ -f "/nextcloud_aio_volumes/nextcloud_aio_mastercontainer/data/configuration.json" ]; then
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echo "configuration.json not present. Cannot perform the backup!"
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exit 1
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elif ! [ -f "/nextcloud_aio_volumes/nextcloud_aio_nextcloud/config/config.php" ]; then
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echo "config.php is missing cannot perform backup"
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exit 1
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elif ! [ -f "/nextcloud_aio_volumes/nextcloud_aio_database_dump/database-dump.sql" ]; then
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echo "database-dump is missing. cannot perform backup"
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exit 1
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fi
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# Test that nothing is empty
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for directory in "${VOLUME_DIRS[@]}"; do
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if [ -z "$(ls -A "$directory")" ]; then
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echo "$directory is empty which is not allowed."
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exit 1
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fi
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done
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if [ -f "/nextcloud_aio_volumes/nextcloud_aio_database_dump/export.failed" ]; then
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echo "Database export failed the last time. Most likely was the export time not high enough."
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echo "Cannot create a backup now."
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echo "Please report this to https://github.com/nextcloud/all-in-one/issues. Thanks!"
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exit 1
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fi
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# Create backup folder
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mkdir -p "$BORG_BACKUP_DIRECTORY"
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# Initialize the repository if the target is empty
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if ! [ -f "$BORG_BACKUP_DIRECTORY/config" ]; then
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# Don't initialize if already initialized
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if [ -f "/nextcloud_aio_volumes/nextcloud_aio_mastercontainer/data/borg.config" ]; then
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echo "Cannot initialize a new repository as that was already done at least one time."
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exit 1
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fi
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echo "initializing repository..."
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if ! borg init --debug --encryption=repokey-blake2 "$BORG_BACKUP_DIRECTORY"; then
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echo "Could not initialize borg repository."
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rm -f "$BORG_BACKUP_DIRECTORY/config"
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exit 1
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fi
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borg config "$BORG_BACKUP_DIRECTORY" additional_free_space 2G
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# Fix too large Borg cache
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# https://borgbackup.readthedocs.io/en/stable/faq.html#the-borg-cache-eats-way-too-much-disk-space-what-can-i-do
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BORG_ID="$(borg config "$BORG_BACKUP_DIRECTORY" id)"
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rm -r "/root/.cache/borg/$BORG_ID/chunks.archive.d"
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touch "/root/.cache/borg/$BORG_ID/chunks.archive.d"
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# Make a backup from the borg config file
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if ! [ -f "$BORG_BACKUP_DIRECTORY/config" ]; then
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echo "The borg config file wasn't created. Something is wrong."
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exit 1
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fi
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rm -f "/nextcloud_aio_volumes/nextcloud_aio_mastercontainer/data/borg.config"
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if ! cp "$BORG_BACKUP_DIRECTORY/config" "/nextcloud_aio_volumes/nextcloud_aio_mastercontainer/data/borg.config"; then
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echo "Could not copy config file to second place. Cannot perform backup."
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exit 1
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fi
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echo "Repository successfully initialized."
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fi
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# Perform backup
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echo "Performing backup..."
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# Borg options
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# auto,zstd compression seems to has the best ratio based on:
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# https://forum.level1techs.com/t/optimal-compression-for-borg-backups/145870/6
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BORG_OPTS=(--stats --progress --compression "auto,zstd" --exclude-caches --checkpoint-interval 86400)
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# Create the backup
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echo "Starting the backup..."
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get_start_time
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if ! borg create "${BORG_OPTS[@]}" "$BORG_BACKUP_DIRECTORY::$CURRENT_DATE-nextcloud-aio" "/nextcloud_aio_volumes/"; then
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echo "Deleting the failed backup archive..."
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borg delete --stats --progress "$BORG_BACKUP_DIRECTORY::$CURRENT_DATE-nextcloud-aio"
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echo "Backup failed!"
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exit 1
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fi
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# Remove the update skip file because the backup was successful
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rm -f "/nextcloud_aio_volumes/nextcloud_aio_nextcloud_data/skip.update"
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echo "$CURRENT_DATE,$CURRENT_DATE_READABLE" >> "/nextcloud_aio_volumes/nextcloud_aio_mastercontainer/data/backup_archives.list"
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chmod +r "/nextcloud_aio_volumes/nextcloud_aio_mastercontainer/data/backup_archives.list"
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# Prune options
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BORG_PRUNE_OPTS=(--stats --progress --keep-within=7d --keep-weekly=4 --keep-monthly=6 "$BORG_BACKUP_DIRECTORY")
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# Prune archives
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echo "Pruning the archives..."
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if ! borg prune --prefix '*_*-nextcloud-aio' "${BORG_PRUNE_OPTS[@]}"; then
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echo "Failed to prune archives!"
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exit 1
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fi
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# Inform user
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get_expiration_time
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echo "Backup finished successfully on $END_DATE_READABLE ($DURATION_READABLE)"
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exit 0
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fi
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# Do the restore
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if [ "$BORG_MODE" = restore ]; then
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get_start_time
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echo "Restoring the last backup..."
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# Perform the restore
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FIRST_ARCHIVE="$(borg list "$BORG_BACKUP_DIRECTORY" | grep "nextcloud-aio" | awk -F " " '{print $1}' | sort -r | head -1)"
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mkdir -p /tmp/borg
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if ! borg mount "$BORG_BACKUP_DIRECTORY::$FIRST_ARCHIVE" /tmp/borg; then
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echo "Could not mount the backup!"
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exit 1
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fi
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if ! rsync --stats --archive --human-readable -vv --delete \
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--exclude "nextcloud_aio_mastercontainer/data/backup_archives.list" \
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--exclude "nextcloud_aio_mastercontainer/session/"** \
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--exclude "nextcloud_aio_mastercontainer/certs/"** \
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/tmp/borg/nextcloud_aio_volumes/ /nextcloud_aio_volumes; then
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echo "Something failed while restoring the boot partition."
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umount /tmp/borg
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exit 1
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fi
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umount /tmp/borg
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# TODO: reset fetchtimes in configuration.json so that it doesn't get the latest directly...
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# Inform user
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get_expiration_time
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echo "Restore finished successfully on $END_DATE_READABLE ($DURATION_READABLE)"
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# Add file to Nextcloud container so that it skips any update the next time
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touch "/nextcloud_aio_volumes/nextcloud_aio_nextcloud_data/skip.update"
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chmod 777 "/nextcloud_aio_volumes/nextcloud_aio_nextcloud_data/skip.update"
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# Set backup-mode to restore since it was a restore
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sed -i 's/"backup-mode":"[a-z]\+"/"backup-mode":"restore"/g' /nextcloud_aio_volumes/nextcloud_aio_mastercontainer/data/configuration.json
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exit 0
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fi
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# Do the Backup check
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if [ "$BORG_MODE" = check ]; then
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get_start_time
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echo "Checking the backup integity..."
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# Perform the check
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if ! borg check --verify-data --progress "$BORG_BACKUP_DIRECTORY"; then
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echo "Some errors were found while checking the backup integrity!"
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exit 1
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fi
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# Inform user
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get_expiration_time
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echo "Check finished successfully on $END_DATE_READABLE ($DURATION_READABLE)"
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exit 0
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fi
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