Updated docker build

Dockerfile

@@ -1,21 +1,24 @@
-FROM alpine:3.14
+FROM alpine:latest
 
-RUN apk add --no-cache python3 git ghostscript sqlite
+ENV TARGET=/opt/polyphonic
+ENV RELEASE=polyphonic-0.8.3-py3-none-any.whl 
+
+RUN apk add --no-cache python3 py3-pip git ghostscript sqlite
 
 WORKDIR /root
-RUN python3 -m ensurepip
-RUN pip3 install -U pip --no-cache-dir
 
-COPY app/requirements.txt .
-RUN pip3 install -r requirements.txt --no-cache-dir
+RUN python3 -m venv ${TARGET}
+ENV PATH="${TARGET}/bin:$PATH"
 
-COPY app /opt/polyphonic
-WORKDIR /opt/polyphonic
+COPY dist/${RELEASE} .
+RUN pip3 install ${RELEASE} --no-cache-dir
 
-COPY docker_settings.py polyphonic/local_settings.py
-RUN SECRET_KEY=_ python3 manage.py collectstatic --noinput
+WORKDIR ${TARGET}
+
+COPY docker_settings.py local_settings.py
+RUN SECRET_KEY=_ ${TARGET}/bin/manage collectstatic --noinput
 
 VOLUME ["/var/polyphonic"]
 
-ENTRYPOINT ["python3", "manage.py"]
+ENTRYPOINT ["manage"]
 CMD ["runserver", "0.0.0.0:8000", "--insecure"]