FROM node:7-alpine
RUN \
apk add --no-cache \
gcc \
g++ \
musl-dev \
python \
openssl \
curl \
tar \
make
RUN npm install npm@5.x \
&& rm -rf /usr/local/lib/node_modules \
&& mv node_modules /usr/local/lib \
&& npm install -g npm@5.x