add workflow for building containers

backend/Dockerfile-x86_64

@@ -0,0 +1,13 @@
+FROM alpine:latest AS build
+
+RUN apk add python3
+RUN mkdir /venv /app
+RUN python3 -m venv /venv
+ENV PATH="/venv/bin:$PATH"
+
+RUN apk add build-base linux-headers musl-dev python3-dev libpq-dev
+RUN pip3 install flask uwsgi psycopg2
+
+EXPOSE 9090/tcp
+
+ENTRYPOINT ["uwsgi", "--http", ":9090", "--callable", "app", "--wsgi-file", "/app/main.py"]