Fix PyTorch dynamo cache directory issue in containers

- Set USER env var to avoid getpass.getuser() failure
- Set TORCHINDUCTOR_CACHE_DIR to bypass username lookup
- Set TORCH_HOME for torch cache
- Create cache directories with proper permissions

Fixes: KeyError: 'getpwuid(): uid not found: 1000'

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Dockerfile

@@ -14,9 +14,15 @@ ENV TRANSFORMERS_CACHE=/tmp/transformers_cache
 ENV HF_HOME=/tmp/hf_home
 ENV HUGGINGFACE_HUB_CACHE=/tmp/huggingface_hub
 
+# Fix for PyTorch dynamo cache directory issue in containers
+# (getpass.getuser() fails when UID doesn't exist in /etc/passwd)
+ENV USER=appuser
+ENV TORCHINDUCTOR_CACHE_DIR=/tmp/torchinductor_cache
+ENV TORCH_HOME=/tmp/torch_home
+
 # Create cache directories with proper permissions
-RUN mkdir -p /tmp/transformers_cache /tmp/hf_home /tmp/huggingface_hub && \
-    chmod -R 777 /tmp/transformers_cache /tmp/hf_home /tmp/huggingface_hub
+RUN mkdir -p /tmp/transformers_cache /tmp/hf_home /tmp/huggingface_hub /tmp/torchinductor_cache /tmp/torch_home && \
+    chmod -R 777 /tmp/transformers_cache /tmp/hf_home /tmp/huggingface_hub /tmp/torchinductor_cache /tmp/torch_home
 
 # Copy and install Python requirements
 COPY requirements.txt .