Initial commit: Nat20 Notes — TTRPG session transcription & summarization

backend/Dockerfile

@@ -0,0 +1,52 @@
+# ==========================================
+# STAGE 1: Builder Environment
+# ==========================================
+FROM python:3.11-slim AS builder
+
+WORKDIR /build
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    gcc \
+    patchelf \
+    && rm -rf /var/lib/apt/lists/*
+
+ENV PIP_NO_CACHE_DIR=1
+ENV PIP_DISABLE_PIP_VERSION_CHECK=1
+
+COPY requirements.txt .
+
+RUN pip install --user --extra-index-url https://download.pytorch.org/whl/cu121 -r requirements.txt
+
+# Silence the "Lightning auto-upgraded checkpoint" warning on every diarization run
+RUN python -c "import sys, subprocess, whisperx, pathlib; ckpt = pathlib.Path(whisperx.__file__).parent/'assets'/'pytorch_model.bin'; ckpt.exists() and subprocess.run([sys.executable, '-m', 'pytorch_lightning.utilities.upgrade_checkpoint', str(ckpt)])" 2>/dev/null || true
+
+RUN patchelf --clear-execstack /root/.local/lib/python3.11/site-packages/ctranslate2.libs/libctranslate2-*.so*
+
+RUN find /root/.local -type d -name "__pycache__" -exec rm -rf {} + \
+    && find /root/.local -type d \( -name "test" -o -name "tests" \) -exec rm -rf {} + \
+    && find /root/.local -name "*.dist-info" -exec sh -c 'rm -f "$1"/RECORD "$1"/INSTALLER' _ {} \;
+
+# ==========================================
+# STAGE 2: Lightweight Final Runtime
+# ==========================================
+FROM python:3.11-slim AS runtime
+
+WORKDIR /app
+
+# ffmpeg is mandatory for the audio-extraction step.
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ffmpeg \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy the (now stripped) site-packages from the builder stage. None of the
+# build-essential/gcc toolchain from Stage 1 ends up here.
+COPY --from=builder /root/.local /root/.local
+COPY app /app/app
+
+ENV PATH=/root/.local/bin:$PATH
+ENV PYTHONUNBUFFERED=1
+
+EXPOSE 8000
+
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]