Merge pull request #1051 from yuvipanda/fix-docker

Add build-base to build stage of docker image

Author: minrk

Dockerfile

@@ -1,7 +1,7 @@
 ARG ALPINE_VERSION=3.12.0
 FROM alpine:${ALPINE_VERSION}
 
-RUN apk add --no-cache git python3 python3-dev py-pip
+RUN apk add --no-cache git python3 python3-dev py-pip build-base
 
 # build wheels in first image
 ADD . /tmp/src