feat: Add scripts for Docker cleanup and Vaultwarden database backup.

vaultwarden-backup.sh

@@ -0,0 +1,70 @@
+#!/bin/bash
+set -euo pipefail
+
+# --- Settings ---
+# Container Name
+CONTAINER_NAME="vaultwarden"
+
+# Host path mapped to /data inside the container
+BACKUP_SOURCE_DIR="/home/mbuz/docker/vaultwarden"
+
+# Destination for backups
+BACKUP_DEST_DIR="/mnt/media/vault_backups"
+
+# Retention Policy: Delete backups older than N days
+RETENTION_DAYS=30
+
+# Syslog Tag
+LOG_TAG="vaultwarden-backup"
+# --- End of Settings ---
+
+# Logging helpers
+log_info() { logger -t "$LOG_TAG" -p user.info "$1"; }
+log_error() { logger -t "$LOG_TAG" -p user.error "$1"; }
+
+log_info "Starting Vaultwarden backup..."
+
+# 1. Mount Check
+if [ ! -d "$BACKUP_DEST_DIR" ]; then
+    log_info "Destination directory not found. Attempting to mount..."
+    sudo mount -a || true
+    sleep 2
+    if [ ! -d "$BACKUP_DEST_DIR" ]; then
+        log_error "ERROR: Destination '$BACKUP_DEST_DIR' unavailable after mount attempt."
+        exit 1
+    fi
+fi
+
+# 2. Backup Execution
+# We assume the container has 'sqlite3' installed. If not, this will fail safely.
+# Format: db_backup_YYYYMMDD_HHMMSS.sqlite3
+TIMESTAMP=$(date +%Y%m%d_%H%M%S)
+FILENAME="db_backup_${TIMESTAMP}.sqlite3"
+
+log_info "Creating backup: $FILENAME"
+
+# We execute sqlite3 inside the container to safely backup the DB to the /data volume (mapped to host)
+if ! docker exec "$CONTAINER_NAME" command -v sqlite3 &>/dev/null; then
+    log_error "ERROR: 'sqlite3' command not found inside '$CONTAINER_NAME'. Please install it or check image."
+    exit 1
+fi
+
+docker exec "$CONTAINER_NAME" sqlite3 /data/db.sqlite3 ".backup '/data/$FILENAME'"
+
+# 3. Verify and Move
+HOST_FILE_PATH="$BACKUP_SOURCE_DIR/$FILENAME"
+
+if [ -f "$HOST_FILE_PATH" ]; then
+    mv "$HOST_FILE_PATH" "$BACKUP_DEST_DIR/"
+    log_info "SUCCESS: Backup moved to $BACKUP_DEST_DIR/$FILENAME"
+else
+    log_error "ERROR: Backup file '$HOST_FILE_PATH' not found on host."
+    exit 1
+fi
+
+# 4. Cleanup / Rotation
+log_info "Cleaning up backups older than $RETENTION_DAYS days..."
+find "$BACKUP_DEST_DIR" -name "db_backup_*.sqlite3" -type f -mtime +$RETENTION_DAYS -delete
+
+log_info "Backup process completed."
+exit 0