updated dockerfile

Author: kayprogrammer

Dockerfile

@@ -1,15 +1,25 @@
+# Build stage
 FROM python:3.12.7 AS builder
 
 ENV PYTHONUNBUFFERED=1 \
     PYTHONDONTWRITEBYTECODE=1
 WORKDIR /app
 
-
+# Create and activate virtual environment, then install dependencies
 RUN python -m venv .venv
 COPY requirements.txt ./
 RUN .venv/bin/pip install -r requirements.txt
+
+# Final stage
 FROM python:3.12.7-slim
 WORKDIR /app
+
+# Copy virtual environment from the builder stage
 COPY --from=builder /app/.venv .venv/
 COPY . .
-CMD alembic upgrade heads && /app/.venv/bin/fastapi run
+
+# Set PATH so the environment's executables are prioritized
+ENV PATH="/app/.venv/bin:$PATH"
+
+# Run Alembic migrations and start FastAPI
+CMD ["sh", "-c", "alembic upgrade heads && fastapi run"]