Add restore script for Gitea, DB, and Runner data

gitea/restore.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+# RESTORE SCRIPT
+echo "WARNING: This will overwrite your current Gitea/DB/Runner data."
+read -p "Are you sure? (y/N): " -n 1 -r
+echo
+if [[ ! $REPLY =~ ^[Yy]$ ]]; then exit 1; fi
+
+docker compose down
+
+echo "Restoring Database Volume..."
+docker compose up -d db
+echo "Waiting for DB to initialize..."
+sleep 15
+cat database.sql | docker compose exec -T db psql -U ${POSTGRES_USER:-gitea} -d ${POSTGRES_DB:-gitea}
+
+echo "Restoring Gitea Files..."
+docker run --rm --volumes-from gitea -v $(pwd):/backup alpine tar xzf /backup/gitea_data.tar.gz -C /data
+
+echo "Restoring Runner Files..."
+docker run --rm --volumes-from gitea-runner -v $(pwd):/backup alpine tar xzf /backup/runner_data.tar.gz -C /data
+
+echo "Restarting stack..."
+docker compose up -d
+echo "Restore Complete."