initial re-commit to wipe commit histoy due to public repo

backend/Dockerfile

@@ -0,0 +1,23 @@
+# syntax=docker/dockerfile:1.4
+FROM python:3-alpine AS builder
+
+WORKDIR /code
+COPY requirements.txt /code
+RUN target=/root/.cache/pip \
+    pip3 install -r requirements.txt
+
+COPY . .
+
+ENV FLASK_APP app.py
+
+# This might be scary to leave on
+#ENV FLASK_ENV development
+
+ENV FLASK_RUN_PORT 8000
+ENV FLASK_RUN_HOST 0.0.0.0
+RUN flask --version
+
+EXPOSE 8000
+
+CMD ["flask", "run"]
+