anchor.diff:      && update-alternatives --install /usr/bin/python python /usr/bin/python3 1
   
   RUN KUBE_VERSION=$(sed -n 's/^kube_version: //p' roles/kubespray-defaults/defaults/main.yaml) \
  -    && curl -LO https://storage.googleapis.com/kubernetes-release/release/$KUBE_VERSION/bin/linux/amd64/kubectl \
  +    && curl -LO https://storage.googleapis.com/kubernetes-release/release/$KUBE_VERSION/bin/linux/$ARCH/kubectl \
       && chmod a+x kubectl \
       && mv kubectl /usr/local/bin/kubectl
  
positive.code:     && rm -rf /var/lib/apt/lists/*
  RUN curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add - \
      && add-apt-repository \
      "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
      $(lsb_release -cs) \
      stable" \
      && apt update -y && apt-get install --no-install-recommends -y docker-ce \
  
negative.code: # Use imutable image tags rather than mutable tags (like ubuntu:20.04)
  FROM ubuntu:focal-20220316
  
  ARG ARCH=amd64
  ARG TZ=Etc/UTC
  RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
  
  