anchor.diff: -FROM gliderlabs/alpine:3.3
  +FROM gliderlabs/alpine:3.4
   
   MAINTAINER Takeru Sato <midium.size@gmail.com>
   
  
positive.code:     py-cffi \
      py-cryptography \
    && pip install --upgrade pip \
    && apk add --virtual build-deps \
      gcc \
      libffi-dev \
      python-dev \
  
negative.code:     musl-dev \
      openssl-dev \
    && pip install gsutil \
    && apk del build-deps
  
  CMD /bin/run.sh && exec crond -f -c /root/crontabs
  