deploy fastapi backend

Dockerfile

@@ -1,57 +1,16 @@
-#backend\Dockerfile
-# ─── Build stage ─────────────────────────────────────────────────────────────
-FROM python:3.11-slim AS builder
+FROM python:3.11-slim
 
-WORKDIR /app
-
-# System dependencies
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    build-essential \
-    libpq-dev \
-    && rm -rf /var/lib/apt/lists/*
-
-# Install Python dependencies
-COPY requirements.txt .
-RUN pip install --no-cache-dir --upgrade pip \
-    && pip install --no-cache-dir -r requirements.txt
-
-# ─── Runtime stage ────────────────────────────────────────────────────────────
-FROM python:3.11-slim AS runtime
+RUN useradd -m -u 1000 user
+USER user
+ENV PATH="/home/user/.local/bin:$PATH"
 
 WORKDIR /app
 
-# Runtime system deps only
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    libpq5 \
-    curl \
-    && rm -rf /var/lib/apt/lists/*
-
-# Non-root user for security
-RUN addgroup --system --gid 1001 appgroup \
-    && adduser  --system --uid 1001 --ingroup appgroup --no-create-home appuser
-
-# Copy installed packages from builder
-COPY --from=builder /usr/local/lib/python3.11/site-packages /usr/local/lib/python3.11/site-packages
-COPY --from=builder /usr/local/bin /usr/local/bin
-
-# Copy application code
-COPY --chown=appuser:appgroup . .
+COPY --chown=user ./requirements.txt requirements.txt
+RUN pip install --no-cache-dir --upgrade -r requirements.txt
 
-# Expose port
-EXPOSE 8000
+COPY --chown=user . /app
 
-# Switch to non-root user
-USER appuser
+EXPOSE 7860
 
-# ─── Gunicorn with Uvicorn workers (Production) ───────────────────────────────
-CMD ["gunicorn", "app.main:app", \
-     "--workers", "4", \
-     "--worker-class", "uvicorn.workers.UvicornWorker", \
-     "--bind", "0.0.0.0:8000", \
-     "--timeout", "120", \
-     "--keep-alive", "5", \
-     "--max-requests", "1000", \
-     "--max-requests-jitter", "100", \
-     "--access-logfile", "-", \
-     "--error-logfile", "-", \
-     "--log-level", "info"]
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]