Update Dockerfile

Dockerfile

@@ -24,8 +24,17 @@ RUN chown -R user:user /app
 # Switch to the user for improved security
 USER user
 
-# Copy gosu from the packages image (assumed that gosu is already available in spaceread image)
-COPY --from=base /usr/sbin/gosu /usr/sbin/gosu
+# Multi-stage build for installing gosu
+FROM alpine as gosu_installer
+
+# Install gosu in the alpine image
+RUN apk --no-cache add gosu
+
+# Final stage
+FROM base
+
+# Copy gosu from the gosu_installer image
+COPY --from=gosu_installer /usr/sbin/gosu /usr/sbin/gosu
 
 # Copy entrypoint.sh separately
 COPY entrypoint.sh /usr/local/bin/entrypoint.sh