add bookshelf module, fix gitea minor typo, add fixe ip for vms

modules/apps/bookshelf/lib/scripts/create-backup.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+source /opt/bookshelf/env.sh
+
+TIMESTAMP=$(date +'%Y-%m-%d_%H%M%S')
+docker exec bookshelf-database-1 mariadb-dump --all-database -u root -p"$MARIADB_ROOT_PASSWORD" > $BOOKSHELF_BACKUPS_DIR/bookshelf-dump-$TIMESTAMP.sql
+
+ls -1dt $BOOKSHELF_BACKUPS_DIR/$BOOKSHELF_BACKUP_PREFIX-*.zip | tail -n +5 | xargs -r rm -f