Update Dockerfile

Dockerfile

@@ -55,7 +55,7 @@ COPY --chown=user . $HOME/app
 
 # Mount the secret and set it as an environment variable
 RUN --mount=type=secret,id=OPENAI_API_KEY,mode=0444,required=true \
-    bash -c 'echo "export OPENAI_API_KEY=$(cat /run/secrets/OPENAI_API_KEY)" >> ~/.bashrc'
+    bash -c 'cat /run/secrets/OPENAI_API_KEY > /run/secrets/OPENAI_API_KEY_FILE && echo "export OPENAI_API_KEY=$(cat /run/secrets/OPENAI_API_KEY_FILE)" >> ~/.bashrc'
 
 # Make port 7860 available to the world outside this container
 EXPOSE 7860