Update Dockerfile

Dockerfile

@@ -1,27 +1,15 @@
-FROM ubuntu:22.04
+FROM docker.io/library/ubuntu:22.04
 
 RUN apt-get update && apt-get install -y \
     wget \
     curl \
+    ca-certificates \
     && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
 
-# 下载 llamafile 主程序
-RUN wget -q https://github.com/Mozilla/llamafile/releases/download/0.9.2/llamafile-0.9.2 \
-    -O llamafile && chmod +x llamafile
+RUN curl -L -o llamafile \
+    https://github.com/Mozilla-Ocho/llamafile/releases/download/0.9.2/llamafile-0.9.2 \
+    && chmod +x llamafile
 
-# 下载轻量模型（1.5B，约1.6GB，适合免费CPU）
-RUN wget -q https://huggingface.co/Qwen/Qwen2.5-1.5B-Instruct-GGUF/resolve/main/qwen2.5-1.5b-instruct-q8_0.gguf \
-    -O model.gguf
-
-EXPOSE 7860
-
-# HF Space 强制要求端口 7860
-CMD ["./llamafile", \
-     "-m", "model.gguf", \
-     "--host", "0.0.0.0", \
-     "--port", "7860", \
-     "-ngl", "0", \
-     "-c", "4096", \
-     "--server"]
+EXPOSE 7860