Update Dockerfile

Dockerfile

@@ -39,7 +39,7 @@ COPY --from=builder /app/src ./src
 COPY --from=builder /app/db ./db
 
 RUN mkdir -p /app/data && chown -R node:node /app && \
-    chmod u+s /bin/ping
+    chmod u+s /bin/ping && ls -al /bin/ping
 
 USER node
 
@@ -47,4 +47,4 @@ USER node
 EXPOSE 3001
 
 # 启动命令
-CMD ["which", "ping", "&&", "node", "server/server.js"]
+CMD ["node", "server/server.js"]