Initial commit of amcrest2mqtt code

Dockerfile

@@ -0,0 +1,15 @@
+FROM python:3.9-alpine as base
+FROM base as builder
+
+RUN mkdir /install
+WORKDIR /install
+
+COPY requirements.txt /
+RUN pip install --prefix=/install -r /requirements.txt
+
+FROM base
+COPY --from=builder /install /usr/local
+COPY src /app
+WORKDIR /app
+
+CMD [ "python", "-u", "/app/amcrest2mqtt.py" ]