add new script to get docker registry-names

get_registry-names.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# 1. Alle docker-compose.yml bis Tiefe 2 finden
+find . -maxdepth 2 -type f -name 'docker-compose.yml' | while read composefile; do
+  # 2. Images extrahieren, Pfad mit ausgeben
+  grep -E '^\s*image:' "$composefile" | awk -v file="$composefile" '{print file ": " $2}'
+done | \
+# 3. Registry extrahieren und gruppieren
+awk -F'image:' '{gsub(/^[ \t]+|[ \t]+$/, "", $2); print $1 $2}' | \
+awk -F': ' '{ 
+  image = $2
+  # Registry extrahieren
+  split(image, parts, "/")
+  if (length(parts) > 1 && index(parts[1], ".") > 0) {
+    registry = parts[1]
+  } else {
+    registry = "docker.io"
+  }
+  print registry ": " image " (" $1 ")"
+}' | sort | uniq