mattspeer
f62d60802f
- Replace symbolic link handling with a latest.txt file pointer - Trade hard-link deduplication for universal drive compatibility - Guarantee complete standalone backups across all target filesystems
132 lines
6.2 KiB
Bash
Executable File
132 lines
6.2 KiB
Bash
Executable File
#!/bin/bash
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# ==============================================================================
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# Script: vaultwarden_backup.sh
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# Description: Backs up Vaultwarden to timestamped directories on a mounted
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# drive using Docker exec and rsync. Compatible with non-POSIX
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# filesystems (exFAT, NTFS, FAT32) and automatically prunes
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# backups older than RETENTION_DAYS.
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# Usage: sudo ./vaultwarden_backup.sh
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# Notes: Must be run with root/sudo privileges.
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# ==============================================================================
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# ==============================================================================
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# Define Variables for Source, Destination, and Retention
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# ==============================================================================
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BACKUP_MOUNT_POINT="/mnt/5TB-Disk1"
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VAULTWARDEN_DATA_DIR="/srv/docker/vaultwarden/data"
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VAULTWARDEN_DESTINATION="$BACKUP_MOUNT_POINT/backup/services/vaultwarden"
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CONTAINER_NAME="vaultwarden"
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RETENTION_DAYS=30
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# Timestamp and Folder Setup
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TIMESTAMP=$(date +"%Y-%m-%d_%H%M%S")
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CURRENT_BACKUP_DIR="$VAULTWARDEN_DESTINATION/backup_$TIMESTAMP"
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LATEST_TXT_FILE="$VAULTWARDEN_DESTINATION/latest.txt"
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# ntfy Notification Configuration
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NTFY_TOPIC="Server"
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NTFY_SERVER="https://ntfy.speerfam.net"
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NTFY_TOKEN="tk_3xo9mejjtgemyowzckqw2souo3mux"
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# ==============================================================================
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# Pre-flight Checks
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# ==============================================================================
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# Check if the mount point directory exists and is a mounted filesystem.
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if ! mountpoint -q "$BACKUP_MOUNT_POINT"; then
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echo "Error: '$BACKUP_MOUNT_POINT' is not a mount point. Please ensure the drive is mounted." >&2
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curl -H "Authorization: Bearer $NTFY_TOKEN" -d "Error: Script failed. Destination '$BACKUP_MOUNT_POINT' is not mounted." "$NTFY_SERVER/$NTFY_TOPIC" > /dev/null 2>&1
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exit 1
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fi
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# Check if the Vaultwarden source directory exists on the host.
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if [ ! -d "$VAULTWARDEN_DATA_DIR" ]; then
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echo "Error: Vaultwarden source directory '$VAULTWARDEN_DATA_DIR' not found." >&2
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curl -H "Authorization: Bearer $NTFY_TOKEN" -d "Error: Script failed. Vaultwarden data directory '$VAULTWARDEN_DATA_DIR' not found." "$NTFY_SERVER/$NTFY_TOPIC" > /dev/null 2>&1
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exit 1
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fi
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# Check if the Docker container is running.
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if ! docker ps --format '{{.Names}}' | grep -q "^${CONTAINER_NAME}$"; then
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echo "Error: Docker container '$CONTAINER_NAME' is not running." >&2
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curl -H "Authorization: Bearer $NTFY_TOKEN" -d "Error: Script failed. Docker container '$CONTAINER_NAME' is not running." "$NTFY_SERVER/$NTFY_TOPIC" > /dev/null 2>&1
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exit 1
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fi
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# Create target directory for current run
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mkdir -p "$CURRENT_BACKUP_DIR"
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# ==============================================================================
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# Vaultwarden Backup Execution
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# ==============================================================================
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echo "Starting Vaultwarden backup ($TIMESTAMP)..."
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# Step 1: Trigger in-container database backup
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docker exec "$CONTAINER_NAME" /vaultwarden backup
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DB_STATUS=$?
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if [ $DB_STATUS -ne 0 ]; then
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echo "Error: Vaultwarden docker exec backup failed with exit code $DB_STATUS." >&2
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curl -H "Authorization: Bearer $NTFY_TOKEN" -d "Error: Vaultwarden internal DB backup command failed." "$NTFY_SERVER/$NTFY_TOPIC" > /dev/null 2>&1
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rm -rf "$CURRENT_BACKUP_DIR"
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exit 1
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fi
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# Step 2: Locate the newly generated database snapshot in the host data dir
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LATEST_DB_BACKUP=$(ls -t "$VAULTWARDEN_DATA_DIR"/db_*.sqlite3 2>/dev/null | head -n 1)
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if [ -z "$LATEST_DB_BACKUP" ]; then
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echo "Error: Could not locate generated db_*.sqlite3 backup file in '$VAULTWARDEN_DATA_DIR'." >&2
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curl -H "Authorization: Bearer $NTFY_TOKEN" -d "Error: Vaultwarden backup snapshot file missing after exec." "$NTFY_SERVER/$NTFY_TOPIC" > /dev/null 2>&1
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rm -rf "$CURRENT_BACKUP_DIR"
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exit 1
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fi
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# Rsync the snapshot file into the timestamped directory as db.sqlite3
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echo "Rsyncing database snapshot to '$CURRENT_BACKUP_DIR/db.sqlite3'..."
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rsync -av --no-owner --no-group "$LATEST_DB_BACKUP" "$CURRENT_BACKUP_DIR/db.sqlite3"
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RSYNC_DB_STATUS=$?
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# Cleanup local temporary snapshot file
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rm -f "$LATEST_DB_BACKUP"
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if [ $RSYNC_DB_STATUS -ne 0 ]; then
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echo "Error: rsync failed to copy database snapshot file." >&2
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curl -H "Authorization: Bearer $NTFY_TOKEN" -d "Error: rsync failed during Vaultwarden DB snapshot sync." "$NTFY_SERVER/$NTFY_TOPIC" > /dev/null 2>&1
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exit 1
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fi
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# Step 3: Find previous backup directory for --link-dest (if filesystem supports it)
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PREVIOUS_BACKUP_DIR=$(ls -td "$VAULTWARDEN_DESTINATION"/backup_* 2>/dev/null | grep -v "$CURRENT_BACKUP_DIR" | head -n 1)
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LINK_DEST_PARAM=""
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if [ -n "$PREVIOUS_BACKUP_DIR" ] && [ -d "$PREVIOUS_BACKUP_DIR" ]; then
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LINK_DEST_PARAM="--link-dest=$PREVIOUS_BACKUP_DIR"
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fi
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echo "Rsyncing attachments, RSA keys, and configuration files..."
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rsync -av --no-owner --no-group $LINK_DEST_PARAM --exclude='db.sqlite3*' "$VAULTWARDEN_DATA_DIR/" "$CURRENT_BACKUP_DIR/"
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RSYNC_DATA_STATUS=$?
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if [ $RSYNC_DATA_STATUS -ne 0 ]; then
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echo "Error: rsync failed during remaining files sync." >&2
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curl -H "Authorization: Bearer $NTFY_TOKEN" -d "Error: rsync failed during Vaultwarden data backup." "$NTFY_SERVER/$NTFY_TOPIC" > /dev/null 2>&1
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exit 1
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fi
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# Step 4: Record current backup path to latest.txt
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echo "$CURRENT_BACKUP_DIR" > "$LATEST_TXT_FILE"
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# ==============================================================================
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# Retention Cleanup (Prune Backups Older than RETENTION_DAYS)
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# ==============================================================================
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echo "Checking for backups older than $RETENTION_DAYS days..."
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find "$VAULTWARDEN_DESTINATION" -maxdepth 1 -type d -name "backup_*" -mtime +$RETENTION_DAYS -exec rm -rf {} +
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# ==============================================================================
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# Completion and Notification
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# ==============================================================================
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echo "Success: Vaultwarden backup completed at '$CURRENT_BACKUP_DIR'."
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curl -H "Authorization: Bearer $NTFY_TOKEN" -d "Success: Vaultwarden backup completed ($TIMESTAMP). Retaining $RETENTION_DAYS days." "$NTFY_SERVER/$NTFY_TOPIC" > /dev/null 2>&1 |