optimize Dockerfile

Author: harlev

Dockerfile

@@ -1,11 +1,12 @@
 FROM frolvlad/alpine-python3
-
 WORKDIR /app
-COPY . /app
+COPY *requirements* /app/
 RUN sed -i -e 's/v3\.8/edge/g' /etc/apk/repositories \
     && apk upgrade --update-cache --available \
     && apk add --no-cache librdkafka librdkafka-dev
 RUN apk add --no-cache alpine-sdk python3-dev
 RUN pip install -r requirements.txt
 RUN pip install -r test-requirements.txt
+COPY . /app
 RUN pip install -e .
+