Upgrade pip in remme-core container
FROM alpine:edge as build
WORKDIR /root
RUN apk --update --no-cache add rsync pkgconf build-base autoconf automake python3 protobuf libtool libffi-dev python3-dev zeromq-dev openssl-dev
+RUN pip3 install --upgrade pip
RUN mkdir /install
ENV PYTHONUSERBASE=/install
COPY ./requirements.txt .
