Update Dockerfile

Dockerfile

@@ -1,28 +1,26 @@
-ARG PYTHON_VERSION=3.10
-FROM python:${PYTHON_VERSION}-slim as base
+FROM docker.io/library/python:3.10-slim@sha256:80619a5316afae7045a3c13371b0ee670f39bac46ea1ed35081d2bf91d6c3dbd
 
-# Prevents Python from writing pyc files.
-ENV PYTHONDONTWRITEBYTECODE=1
-ENV PYTHONUNBUFFERED=1
-
-# Create a non-privileged user and group
+# Create a group and user
 RUN addgroup --system appgroup && adduser --system --ingroup appgroup appuser
 
 # Set the working directory
 WORKDIR /app
 
-# Copy the source code into the container
+# Copy the application files
 COPY . .
 
 # Change ownership of the application files
 RUN chown -R appuser:appgroup /app
 
-# Switch to the non-privileged user to run the application
+# Switch to the non-root user
 USER appuser
 
-# Install dependencies
+# Install Python dependencies
 RUN python -m pip install --no-cache-dir -r requirements.txt
 
+# Switch back to root to add commands that need root access
+USER root
+
 # Expose the port that the application listens on
 EXPOSE 8000