Simplifies Dockerfile and switches to Python 3.10

Consolidates build and runtime stages into a single image,
removes unnecessary build tools and wheel creation, and
creates a non-root user for better security. Updates the
base image to Python 3.10, changes the working directory,
and exposes port 7860 to match the application's runtime
configuration. Streamlines the build process for faster
deployments and easier maintenance.

Dockerfile

@@ -1,77 +1,29 @@
-# -----------------------------------------------------------------------------
-# Stage 1: Builder Stage
-# This stage installs build-time dependencies and compiles Python packages
-# into wheels, which can be installed in the final stage without build tools.
-# -----------------------------------------------------------------------------
-FROM python:3.11-slim-bullseye AS builder
+# Builder stage
+FROM python:3.10.0 as builder
 
-# Set environment variables
-ENV PYTHONDONTWRITEBYTECODE 1
-ENV PYTHONUNBUFFERED 1
+# Create a non-root user
+RUN useradd -ms /bin/bash admin
 
-WORKDIR /app
+# Set the working directory
+WORKDIR /srv
 
-# Install system dependencies required for building some of the Python packages
-# (e.g., pandas, curl_cffi)
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    build-essential \
-    libcurl4-openssl-dev \
-    && apt-get clean \
-    && rm -rf /var/lib/apt/lists/*
+# Copy requirements file first to leverage caching
+COPY --chown=admin requirements.txt .
 
 # Install Python dependencies
-COPY requirements.txt .
-RUN pip install --upgrade pip
-# Create a wheelhouse for all dependencies
-RUN pip wheel --no-cache-dir --wheel-dir /wheels -r requirements.txt
+RUN pip install --no-cache-dir -r requirements.txt
 
 
-# -----------------------------------------------------------------------------
-# Stage 2: Final Stage
-# This is the final, lean image. It copies the pre-built wheels from the
-# builder stage and runs the application.
-# -----------------------------------------------------------------------------
-FROM python:3.11-slim-bullseye
+# Copy the application code
+COPY --chown=admin . /srv
 
-# Set environment variables
-ENV PYTHONDONTWRITEBYTECODE 1
-ENV PYTHONUNBUFFERED 1
 
-WORKDIR /app
+# Give read and write permissions to the admin user
 
-# Install only the runtime system dependencies needed
-# libcurl4 is the runtime library for curl_cffi
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    libcurl4 \
-    && apt-get clean \
-    && rm -rf /var/lib/apt/lists/*
+RUN chown -R admin:admin /srv
+RUN chmod 755 /srv
+USER admin
+CMD python -m uvicorn main:app --workers 1 --host 0.0.0.0 --port 7860  --log-level debug
 
-# Copy the pre-built wheels from the builder stage
-COPY --from=builder /wheels /wheels
-
-# Install the Python dependencies from the wheels
-# This is much faster and doesn't require build tools in the final image
-RUN pip install --no-cache /wheels/*
-
-# Create a non-root user for security
-RUN useradd -m -U -d /home/appuser appuser
-USER appuser
-WORKDIR /home/appuser
-
-# Copy the application code into the container
-# NOTE: The path 'my_app' should match your application's directory name
-COPY --chown=appuser:appuser ./my_app .
-
-# Expose the port the app runs on
-EXPOSE 8000
-
-# --- Database & Migrations Note ---
-# The SQLite DB will be created inside the container.
-# For persistence, mount a volume, e.g., -v ./my_data:/home/appuser/my_data
-# Migrations should be run manually after starting the container.
-# Example: docker exec <container_name> aerich upgrade
-
-# Command to run the application
-# Assumes your main file is `main.py` and your FastAPI instance is `app`.
-# Change `main:app` if your file/variable names are different.
-CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]
+# Expose port
+EXPOSE 7860