python -m pip install --upgrade pip \
pip install 'pycurl==7.44.1' && \
set -ex && \
+ gem install public_suffix -v 4.0.7 --no-document && \
gem install multipart-post -v 2.2.0 --no-document && \
gem install chef:13.8.5 berkshelf:6.3.1 io-console:0.4.6 etc webrick --no-document && \
apk del .build-dependencies && \