diff --git a/test_s3.Dockerfile b/test_s3.Dockerfile
new file mode 100644
index 0000000..d0d8363
--- /dev/null
+++ b/test_s3.Dockerfile
@@ -0,0 +1,9 @@
+FROM registry.fedoraproject.org/fedora:43
+
+RUN dnf -y install --setopt=install_weak_deps=False --nodocs curl && dnf clean all
+
+RUN echo "=== Test 1: Direct connection ===" && \
+    curl -s "https://therock-nightly-tarball.s3.amazonaws.com?list-type=2&prefix=therock-dist-linux-gfx120X-all-7" | head -50
+
+RUN echo "=== Test 2: SOCKS5 proxy ===" && \
+    curl -x socks5://192.168.0.11:1080 -s "https://therock-nightly-tarball.s3.amazonaws.com?list-type=2&prefix=therock-dist-linux-gfx120X-all-7" | head -50