Update Dockerfile

Dockerfile

@@ -1,6 +1,15 @@
 FROM ubuntu:22.04
 
-RUN apt-get update && apt-get install -y tar libgnutls30 libssl-dev bash && rm -rf /var/lib/apt/lists/*
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+      tar \
+      ca-certificates \
+      binutils \
+      libgnutls30 \
+      libssl-dev \
+      bash \
+      strace \
+    && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
 
@@ -8,13 +17,19 @@ COPY 40990sign.tar.gz /app/40990sign.tar.gz
 
 ENV LD_LIBRARY_PATH=/app/40990sign:$LD_LIBRARY_PATH
 ENV PORT=7860
+ENV RUST_BACKTRACE=1
 EXPOSE 7860
 
-# 解压并启动
-CMD bash -c "\
+CMD bash -lc "\
+    echo 'Extracting...' && \
     tar -xvf /app/40990sign.tar.gz -C /app && \
-    chmod +x /app/40990sign/sign && \
-    chmod +r /app/40990sign/*.so && \
+    if [ ! -d /app/40990sign ]; then echo 'ERROR: expected /app/40990sign but not found'; ls -la /app; exit 1; fi && \
+    chmod +x /app/40990sign/sign || true && chmod +r /app/40990sign/*.so || true && \
     cd /app/40990sign && \
-    ./sign \
+    echo '=== file sign ===' > /app/40990sign/debug_info.txt && file ./sign >> /app/40990sign/debug_info.txt 2>&1 && \
+    echo '=== readelf -h sign ===' >> /app/40990sign/debug_info.txt && readelf -h ./sign >> /app/40990sign/debug_info.txt 2>&1 || true && \
+    echo '=== ldd sign ===' >> /app/40990sign/debug_info.txt && ldd ./sign >> /app/40990sign/debug_info.txt 2>&1 || true && \
+    echo '=== ldd libsymbols.so ===' >> /app/40990sign/debug_info.txt && ldd ./libsymbols.so >> /app/40990sign/debug_info.txt 2>&1 || true && \
+    echo '=== start sign (RUST_BACKTRACE=1) ===' >> /app/40990sign/debug_info.txt && \
+    RUST_BACKTRACE=1 LD_LIBRARY_PATH=/app/40990sign:$LD_LIBRARY_PATH ./sign 2>&1 | tee -a /app/40990sign/debug_info.txt \
 "