anchor.diff:      make static &&\
       mv _output/jb /usr/local/bin/jb
   
  -FROM golang:alpine as helm
  +FROM golang:alpine3.12 as helm
   WORKDIR /tmp/helm
   RUN apk add --no-cache jq curl
   RUN export TAG=$(curl --silent "https://api.github.com/repos/helm/helm/releases/latest" | jq -r .tag_name) &&\
  
positive.code:     tar -xvf helm.tgz --strip-components=1
  
  # assemble final container
  FROM alpine
  RUN apk add --no-cache coreutils diffutils less git openssh-client
  COPY tk /usr/local/bin/tk
  COPY --from=kubectl /usr/local/bin/kubectl /usr/local/bin/kubectl
  
negative.code:     chmod +x /usr/local/bin/kubectl
  
  # build jsonnet-bundler
  FROM golang:alpine3.12 as jb
  WORKDIR /tmp
  RUN apk add --no-cache git make bash &&\
      git clone https://github.com/jsonnet-bundler/jsonnet-bundler &&\
  