content: # Copyright 2019 The Kubernetes Authors.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  FROM gcr.io/gcp-runtimes/ubuntu_16_0_4:latest
  RUN apt-get update -qqy # retain the apt cache
  RUN apt-get install -qqy git curl wget
  
  ARG KUBECTL_VERSION=v1.14.2
  RUN curl -fsSLo /usr/bin/kubectl https://dl.k8s.io/release/${KUBECTL_VERSION}/bin/linux/amd64/kubectl  && \
      chmod +x /usr/bin/kubectl
  
  # initialize index ahead of time
  RUN mkdir -p $HOME/.krew/index && \
      git clone https://github.com/kubernetes-sigs/krew-index $HOME/.krew/index
  
  ENTRYPOINT [ "/usr/bin/env", "bash" ]
  