Create Dockerfile

Dockerfile

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+# Dockerfile
+
+# 1. Base Image: Python 3.10 on Debian (Bullseye for ffmpeg availability)
+# Using a slim image to keep the size down.
+FROM python:3.10-slim-bullseye
+
+# 2. Set Environment Variables
+ENV PYTHONUNBUFFERED=1 \
+    PIP_NO_CACHE_DIR=off \
+    PIP_DISABLE_PIP_VERSION_CHECK=on \
+    PIP_DEFAULT_TIMEOUT=100 \
+    # For Hugging Face cache inside the container (optional, models will download on first run)
+    HF_HOME="/app/.huggingface_cache" \
+    TRANSFORMERS_CACHE="/app/.huggingface_cache/transformers" \
+    HUGGINGFACE_HUB_CACHE="/app/.huggingface_cache/hub"
+
+# 3. Install System Dependencies
+# - ffmpeg: for video processing
+# - git: in case any pip package needs to be installed from a git source
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+    ffmpeg \
+    git \
+    curl \
+    && apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+# 4. Set Working Directory
+WORKDIR /app
+
+# 5. Copy requirements.txt and Install Python Dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# 6. Copy Application Code and Secrets
+# First, copy the secrets file (if it exists and you intend to build it into the image)
+# WARNING: Building secrets into the image is generally NOT recommended for production.
+#          Manage secrets via environment variables or Docker secrets/volume mounts at runtime.
+#          This is included for completeness if you are managing it this way for development.
+COPY .streamlit/secrets.toml .streamlit/secrets.toml
+
+# Copy the rest of your application code
+COPY app.py .
+# If you have other Python modules or asset files, copy them as well:
+# COPY your_module.py .
+# COPY assets/ /app/assets/
+
+# 7. Create Hugging Face cache directory and set permissions (optional)
+# This helps if the user running the container is not root and needs to write to cache.
+RUN mkdir -p /app/.huggingface_cache && \
+    chmod -R 777 /app/.huggingface_cache
+
+# 8. Expose Port for Streamlit
+EXPOSE 8501
+
+# 9. Healthcheck (Optional but recommended)
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+    CMD curl --fail http://localhost:8501/_stcore/health || exit 1
+
+# 10. Command to Run the Streamlit Application
+# The --server.address=0.0.0.0 makes the app accessible externally from the container.
+CMD ["streamlit", "run", "app.py", "--server.port=8501", "--server.address=0.0.0.0", "--logger.level=info"]