init version

tools/backup.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+# Daily backup for Vaultwarden data volume
+# Creates compressed tar.gz archives with 7-day rotation
+
+set -euo pipefail
+
+BACKUP_DIR="/srv/docker_services/www/sites/knusperkerne/vault/backups"
+VOLUME_NAME="vaultwarden-data"
+DATE=$(date +%F)
+ARCHIVE="$BACKUP_DIR/vaultwarden_${DATE}.tar.gz"
+
+mkdir -p "$BACKUP_DIR"
+
+echo "[INFO] Creating backup for Vaultwarden volume: $VOLUME_NAME"
+docker run --rm \
+  -v "${VOLUME_NAME}:/data:ro" \
+  -v "${BACKUP_DIR}:/backup" \
+  alpine tar czf "/backup/vaultwarden_${DATE}.tar.gz" /data
+
+# Keep only 7 most recent backups
+echo "[INFO] Rotating old backups..."
+ls -1t "$BACKUP_DIR"/vaultwarden_*.tar.gz | tail -n +8 | xargs -r rm -f
+
+echo "[OK] Backup completed: $ARCHIVE"