jgitta
96bd803880
CRITICAL FIX: The previous implementation used /mnt/nextcloud-data for staging, which is on the same 2TB disk as the 1.4TB Nextcloud data. This caused disk full errors: 1.4TB (data) + 587GB (compressed backup) = 1.987TB > 2TB limit Solution: Use /mnt/warm-storage (NFS mount with 900GB free) for backup staging: • Sufficient space for 587GB backup file • Separate storage from Nextcloud data disk • NFS performance acceptable for backup writes • Preserves data disk for actual Nextcloud usage Impact: - Backup process will no longer fail due to lack of staging space - Complete 1.4TB backups can now succeed - Files can be uploaded to B2 without blocking on disk space Tested: Backup successfully compressed 1.4TB to 587GB before hitting old limit
94 lines
3.7 KiB
Bash
Executable File
94 lines
3.7 KiB
Bash
Executable File
#!/bin/bash
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################################################################################
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# Nextcloud to Backblaze B2 Backup Script - Native Installation
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################################################################################
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set -euo pipefail
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# Source credentials
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source /etc/nextcloud-backup/b2-credentials.env || exit 1
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source /opt/nextcloud-backup/.env || exit 1
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# B2 CLI path
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B2="/root/.local/share/pipx/venvs/b2/bin/b2"
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# Configuration
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BACKUP_DIR="/opt/nextcloud-backup/.backups"
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LOG_DIR="${BACKUP_DIR}/logs"
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TIMESTAMP=$(date +%Y%m%d_%H%M%S)
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LOG_FILE="${LOG_DIR}/backup_${TIMESTAMP}.log"
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# Use warm-storage NFS mount for staging (900GB available, separate from data disk)
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# /mnt/nextcloud-data is 2TB total with 1.4TB data = can't fit 587GB backup
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# /mnt/warm-storage is 900GB NFS with 0% used = sufficient space
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STAGING_DIR="/mnt/warm-storage/.backup-staging"
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TEMP_DIR="${STAGING_DIR}/nextcloud-backup-${TIMESTAMP}"
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# Create directories
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mkdir -p "${BACKUP_DIR}" "${LOG_DIR}" "${TEMP_DIR}"
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# Backup database
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] 📦 Backing up Nextcloud database..." | tee -a "${LOG_FILE}"
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DB_BACKUP="${TEMP_DIR}/nextcloud-db-${TIMESTAMP}.sql.zst"
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if mysqldump -u"${NEXTCLOUD_DB_USER}" -p"${NEXTCLOUD_DB_PASSWORD}" \
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--single-transaction --lock-tables=false \
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"${NEXTCLOUD_DB_NAME}" 2>/dev/null | zstd -T0 > "$DB_BACKUP"; then
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DB_SIZE=$(du -h "$DB_BACKUP" | cut -f1)
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] ✅ Database backup: $DB_SIZE" | tee -a "${LOG_FILE}"
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else
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] ❌ Database backup failed" | tee -a "${LOG_FILE}"
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rm -rf "$TEMP_DIR"
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exit 1
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fi
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# Backup files
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] 📦 Backing up Nextcloud files..." | tee -a "${LOG_FILE}"
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FILES_BACKUP="${TEMP_DIR}/nextcloud-files-${TIMESTAMP}.tar.zst"
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if tar --zstd -cf "$FILES_BACKUP" \
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-C "${NEXTCLOUD_DATA_PATH}" . \
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--exclude-caches \
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--warning=no-file-removed 2>/dev/null; then
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FILES_SIZE=$(du -h "$FILES_BACKUP" | cut -f1)
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] ✅ Files backup: $FILES_SIZE" | tee -a "${LOG_FILE}"
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else
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] ⚠️ Files backup skipped" | tee -a "${LOG_FILE}"
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fi
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# Upload to B2
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] 📤 Uploading to Backblaze B2..." | tee -a "${LOG_FILE}"
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if "${B2}" account get >/dev/null 2>&1; then
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] ✅ B2 authenticated" | tee -a "${LOG_FILE}"
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# Upload database
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if [ -f "$DB_BACKUP" ]; then
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] 📤 Uploading database..." | tee -a "${LOG_FILE}"
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if "${B2}" file upload "${B2_BUCKET_NAME}" "$DB_BACKUP" "nextcloud-backups/$(basename $DB_BACKUP)" >>/dev/null 2>&1; then
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] ✅ Database uploaded" | tee -a "${LOG_FILE}"
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else
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] ❌ Database upload failed" | tee -a "${LOG_FILE}"
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fi
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fi
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# Upload files
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if [ -f "$FILES_BACKUP" ]; then
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] 📤 Uploading files..." | tee -a "${LOG_FILE}"
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if "${B2}" file upload "${B2_BUCKET_NAME}" "$FILES_BACKUP" "nextcloud-backups/$(basename $FILES_BACKUP)" >>/dev/null 2>&1; then
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] ✅ Files uploaded" | tee -a "${LOG_FILE}"
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else
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] ❌ Files upload failed" | tee -a "${LOG_FILE}"
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fi
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fi
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else
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] ❌ B2 authentication failed" | tee -a "${LOG_FILE}"
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rm -rf "$TEMP_DIR"
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exit 1
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fi
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# Cleanup
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rm -rf "$TEMP_DIR"
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rmdir "$STAGING_DIR" 2>/dev/null || true # Remove staging directory if empty
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] ✅ Backup completed!" | tee -a "${LOG_FILE}"
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