Update Dockerfile

Dockerfile

@@ -24,11 +24,12 @@ RUN pip3 install --no-cache-dir --upgrade pip && \
 
 # Download the model using BuildKit secret mount.
 # This command uses the secret HF_TOKEN, which is passed only during this RUN and not stored in the image.
-RUN --mount=type=secret,id=HF_TOKEN,env=HF_TOKEN \
+RUN --mount=type=secret,id=HF_TOKEN,env=HF_TOKEN,mode=0444,required=true \
     python3 -c "import os; \
 from huggingface_hub import snapshot_download; \
 token = os.getenv('HF_TOKEN'); \
 assert token, 'HF_TOKEN is not set!'; \
+print('Token is set. Downloading model...'); \
 snapshot_download(repo_id='mistralai/Mistral-7B-Instruct-v0.1', local_dir='/app/model', token=token)"
 
 # Expose port 8000