entrypoint & dockerfile

Dockerfile

@@ -1,31 +1,35 @@
 FROM python:3.11-slim
 
-# Build deps for psycopg2 etc. (safe to keep)
+# Build deps for psycopg2 etc.
 RUN apt-get update && apt-get install -y \
     build-essential gcc libpq-dev \
  && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
 
-# Install deps first for caching
+# Install Python deps first for better caching
 COPY py_backend/requirements.txt /tmp/requirements.txt
 RUN pip install --no-cache-dir -r /tmp/requirements.txt
 
-# Copy backend
+# Copy backend code
 COPY py_backend/ /app/
 
-# ---- Demo-friendly defaults (no Compose) ----
-# Persist stuff under /data (enable "Persistent storage" in Space settings)
-RUN mkdir -p /data/uploads && chmod -R 777 /data
+# Copy startup script
+COPY entrypoint.sh /app/entrypoint.sh
+RUN chmod +x /app/entrypoint.sh
+
+# Default runtime env (can be overridden by Space Secrets)
 ENV DATABASE_URL=sqlite:////data/app.db
 ENV STORAGE_PROVIDER=local
 ENV STORAGE_DIR=/data/uploads
 ENV HF_HOME=/data/.cache/huggingface
-# ---------------------------------------------
 
-# Hugging Face Spaces will set PORT, default to 7860
+# Create writable data dirs (enable “Persistent storage” in Space settings to keep them)
+RUN mkdir -p /data/uploads && chmod -R 777 /data
+
+# Hugging Face sets PORT; default to 7860
 ENV PORT=7860
 EXPOSE 7860
 
-# Use shell form to allow environment variable substitution
-CMD uvicorn app.main:app --host 0.0.0.0 --port $PORT
+# Run via shell script so $PORT is expanded before reaching uvicorn
+ENTRYPOINT ["/app/entrypoint.sh"]

entrypoint.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env sh
+set -eu
+
+# expand PORT in the shell (default 7860), then pass a pure number to uvicorn
+PORT="${PORT:-7860}"
+
+cd /app
+echo "Starting Uvicorn on 0.0.0.0:${PORT}"
+exec uvicorn app.main:app --host 0.0.0.0 --port "$PORT"

py_backend/entrypoint.sh

@@ -1,9 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-echo "Running alembic upgrade head..."
-alembic upgrade head
-
-PORT_TO_USE="${PORT:-7860}"
-echo "Starting server on port ${PORT_TO_USE}"
-exec uvicorn app.main:app --host 0.0.0.0 --port "${PORT_TO_USE}"