feat: use timestamped output filenames (containers_snapshot_<date>_<host>)

docker_info.py

@@ -8,6 +8,9 @@ Die GraphML-Datei ist für die Visualisierung in yEd optimiert (Star-Schema).
 import docker
 import pandas as pd
 import re
+import os
+import datetime
+import socket
 
 def sanitize_id(text):
     """
@@ -173,5 +176,22 @@ def save_to_graphml(data, filename='docker_container_info.graphml'):
 if __name__ == '__main__':
     print("[*] Sammle Container-Informationen...")
     container_data = get_container_info()
-    save_to_csv(container_data)
-    save_to_graphml(container_data)
+
+    # Erzeuge standardisierte Dateinamen: containers_snapshot_<YYYY-MM-DD>_<hostname>.(csv|graphml)
+    date_str = datetime.date.today().isoformat()
+    hostname = sanitize_id(socket.gethostname())
+    base_name = f"containers_snapshot_{date_str}_{hostname}"
+
+    out_dir = 'out_01'
+    try:
+        os.makedirs(out_dir, exist_ok=True)
+    except Exception:
+        # Falls das Anlegen fehlschlägt, fahren wir mit dem aktuellen Verzeichnis fort
+        out_dir = '.'
+
+    csv_file = os.path.join(out_dir, f"{base_name}.csv")
+    graph_file = os.path.join(out_dir, f"{base_name}.graphml")
+
+    save_to_csv(container_data, filename=csv_file)
+    save_to_graphml(container_data, filename=graph_file)
+    print(f"[+] Dateien: {csv_file}, {graph_file}")