+# Gevent needs gcc, make, file, ffi
+RUN apk update && apk add gcc musl-dev make file libffi-dev
+
+# Upgrade pip, install tox (gevent is installed as a speed hack in local dev where tox is run many times)
+RUN pip install --upgrade pip && pip install tox gevent
+
+# copy rmr libraries from builder image in lieu of an Alpine package
+COPY --from=nexus3.o-ran-sc.org:10002/o-ran-sc/bldr-alpine3-rmr:4.0.5 /usr/local/lib64/librmr* /usr/local/lib64/