diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..5880cfc
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,8 @@
+FROM golang:1.24
+
+WORKDIR /app
+
+COPY . .
+RUN chmod +x test.bash
+
+CMD ["./test.bash"]
diff --git a/test.bash b/test.bash
index a562729..92d1b78 100755
--- a/test.bash
+++ b/test.bash
@@ -34,5 +34,6 @@ sleep 5
 
 # Test leaving.
 ./chord-node leave -n 127.0.0.1:3000
+echo "NOTE: An ERROR line about the HTTP API server closing is expected."
 
 kill $FIRST $SECOND $THIRD