anchor.diff:  	apk --purge -v del py-pip && \
   	rm /var/cache/apk/*
    
  -ARG HELM_VERSION="2.1.3"
  +ARG HELM_VERSION="2.3.1"
   ADD http://storage.googleapis.com/kubernetes-helm/helm-v${HELM_VERSION}-linux-amd64.tar.gz ./
   RUN tar xf helm-v${HELM_VERSION}-linux-amd64.tar.gz && \
       cp linux-amd64/helm /bin/helm && \
  
positive.code: FROM alpine:3.4
  
  # Install Packer
  ARG PACKER_VERSION='0.12.1'
  ADD https://releases.hashicorp.com/packer/${PACKER_VERSION}/packer_${PACKER_VERSION}_linux_amd64.zip ./
  ADD https://releases.hashicorp.com/packer/${PACKER_VERSION}/packer_${PACKER_VERSION}_SHA256SUMS ./
  
  
negative.code:   rm -f packer_${PACKER_VERSION}_linux_amd64.zip
  
  # Install terraform
  ARG TERRAFORM_VERSION='0.9.3'
  ADD https://releases.hashicorp.com/terraform/${TERRAFORM_VERSION}/terraform_${TERRAFORM_VERSION}_linux_amd64.zip ./
  ADD https://releases.hashicorp.com/terraform/${TERRAFORM_VERSION}/terraform_${TERRAFORM_VERSION}_SHA256SUMS ./
  
  