debian based docker in docker and docker cli images

dockerd-entrypoint.sh

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+#!/bin/bash
+set -e
+
+# Create required directories if they don't exist
+mkdir -p /var/run/docker
+
+# Start the Docker daemon in the background
+dockerd &
+
+# Wait until Docker is ready
+timeout=60
+until docker info >/dev/null 2>&1; do
+    if [ $timeout -le 0 ]; then
+        echo >&2 "❌ Docker daemon failed to start within expected time."
+        exit 1
+    fi
+    echo "⏳ Waiting for Docker to be ready... ($timeout)"
+    sleep 1
+    timeout=$((timeout - 1))
+done
+
+echo "✅ Docker daemon is up and running."
+
+# Execute any passed command (default: bash)
+exec "$@"