Initial commit: Gitea Docker Setup für Proxmox

- Docker-Compose Konfiguration
- Setup-Script für LXC Container
- Backup-Script mit Rotation
- Installationsanleitung

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

scripts/backup.sh

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+#!/bin/bash
+# Gitea Backup Script
+# Erstellt ein Backup der Gitea-Daten
+
+set -e
+
+BACKUP_DIR="/opt/gitea-backups"
+DATE=$(date +%Y%m%d_%H%M%S)
+BACKUP_NAME="gitea-backup-${DATE}.tar.gz"
+RETENTION_DAYS=7
+
+# Backup-Verzeichnis erstellen
+mkdir -p "$BACKUP_DIR"
+
+echo "=== Gitea Backup gestartet: $(date) ==="
+
+# Docker Volume Pfad ermitteln
+VOLUME_PATH=$(docker volume inspect gitea-data --format '{{ .Mountpoint }}')
+
+if [ -z "$VOLUME_PATH" ]; then
+    echo "Fehler: gitea-data Volume nicht gefunden!"
+    exit 1
+fi
+
+# Gitea stoppen für konsistentes Backup
+echo "Stoppe Gitea..."
+cd /opt/gitea && docker compose stop gitea
+
+# Backup erstellen
+echo "Erstelle Backup: $BACKUP_NAME"
+tar -czf "${BACKUP_DIR}/${BACKUP_NAME}" -C "$VOLUME_PATH" .
+
+# Gitea wieder starten
+echo "Starte Gitea..."
+cd /opt/gitea && docker compose start gitea
+
+# Alte Backups löschen
+echo "Lösche Backups älter als ${RETENTION_DAYS} Tage..."
+find "$BACKUP_DIR" -name "gitea-backup-*.tar.gz" -mtime +${RETENTION_DAYS} -delete
+
+# Backup-Größe anzeigen
+BACKUP_SIZE=$(du -h "${BACKUP_DIR}/${BACKUP_NAME}" | cut -f1)
+echo "=== Backup abgeschlossen: ${BACKUP_NAME} (${BACKUP_SIZE}) ==="
+
+# Optional: Backup zu externem Speicher kopieren (auskommentiert)
+# rsync -av "${BACKUP_DIR}/${BACKUP_NAME}" user@backup-server:/backups/gitea/