anchor.diff:  RUN /xt/tools/_apt_install docker.io
   
   # install Go language
  -RUN mkdir /goroot && curl https://storage.googleapis.com/golang/go1.5.2.linux-amd64.tar.gz | tar xvzf - -C /goroot --strip-components=1
  +RUN mkdir /goroot && curl https://storage.googleapis.com/golang/go1.5.2.linux-amd64.tar.gz | tar xvzf - -C /goroot --strip-components=1N
   RUN mkdir /gopath
   ENV GOROOT /goroot
   ENV GOPATH /gopath
  
positive.code: #ENV FLEETCTL_ENDPOINT http://10.1.42.1:4001
  
  # etcdctl - https://github.com/coreos/etcd/releases
  ENV VERSION_ETCD 2.2.2
  WORKDIR /tmp
  RUN wget -nv https://github.com/coreos/etcd/releases/download/v${VERSION_ETCD}/etcd-v${VERSION_ETCD}-linux-amd64.tar.gz && \
    tar -xvf etcd-v${VERSION_ETCD}-linux-amd64.tar.gz && \
  
negative.code: #BUILD_PUSH=quay
  FROM bigm/base-deb-tools
  
  # git
  