Update Dockerfile

Dockerfile

@@ -1,16 +1,25 @@
 # syntax=docker/dockerfile:1
 
+FROM python:3.10-bullseye AS compile-image
+
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends build-essential gcc
+
+RUN python -m venv /opt/venv
+
+ENV PATH="/opt/venv/bin:$PATH"
+
+COPY requirements.txt .
+RUN pip install -r requirements.txt
+
 FROM python:3.10-slim-bullseye
 
+COPY --from=compile-image /opt/venv /opt/venv
+
+ENV PATH="/opt/venv/bin:$PATH"
+
 WORKDIR /app
 
-RUN apt-get update && \
-    apt-get install -y gcc
-
-COPY requirements.txt .
-
-RUN pip3 install -r requirements.txt
-
 COPY main.py .
 
-ENTRYPOINT ["python3", "main.py"]
+ENTRYPOINT ["/opt/venv/bin/python3", "main.py"]