ci-bootstrap.yaml

preKubeadmCommands:
  - bash -c /tmp/kubeadm-bootstrap.sh
files:
  - path: /tmp/kubeadm-bootstrap.sh
    owner: "root:root"
    permissions: "0744"
    content: |
      #!/bin/bash

      set -o nounset
      set -o pipefail
      set -o errexit

      [[ $(id -u) != 0 ]] && SUDO="sudo" || SUDO=""

      GSUTIL=gsutil
      if ! command -v ${GSUTIL} > /dev/null; then
        curl -sSL https://sdk.cloud.google.com > /tmp/gcl && bash /tmp/gcl --install-dir=~/gcloud --disable-prompts > /dev/null 2>&1
        GSUTIL=~/gcloud/google-cloud-sdk/bin/gsutil
        # For faster downloads
        pip install --no-cache-dir -U crcmod
      fi
      ${GSUTIL} version

      # This test installs release packages or binaries that are a result of the CI and release builds.
      # It runs '... --version' commands to verify that the binaries are correctly installed
      # and finally uninstalls the packages.
      # For the release packages it tests all versions in the support skew.

      LINE_SEPARATOR="*************************************************"
      echo "$LINE_SEPARATOR"

      CI_VERSION=${CI_VERSION:-""}
      if [[ "${CI_VERSION}" != "" ]]; then
        CI_DIR=/tmp/k8s-ci
        mkdir -p $CI_DIR

        declare -a PACKAGES_TO_TEST=("kubectl" "kubelet" "kubeadm")
        declare -a CONTAINERS_TO_TEST=("kube-apiserver" "kube-controller-manager" "kube-proxy" "kube-scheduler")
        CONTAINER_EXT="tar"

        echo "* testing CI version $CI_VERSION"

        # Check for semver
        if [[ "${CI_VERSION}" =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
          CI_URL="gs://kubernetes-release/release/$CI_VERSION/bin/linux/amd64"

          VERSION_WITHOUT_PREFIX="${CI_VERSION#v}"

          DEBIAN_FRONTEND=noninteractive apt-get install -y apt-transport-https curl
          curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add -
          echo 'deb https://apt.kubernetes.io/ kubernetes-xenial main' > /etc/apt/sources.list.d/kubernetes.list
          apt-get update

          # replace . with \.
          VERSION_REGEX="${VERSION_WITHOUT_PREFIX//./\\.}"
          PACKAGE_VERSION="$(apt-cache madison kubelet|grep ${VERSION_REGEX}- | head -n1 | cut -d '|' -f 2 | tr -d '[:space:]')"

          for CI_PACKAGE in "${PACKAGES_TO_TEST[@]}"; do
            echo "* installing package: $CI_PACKAGE ${PACKAGE_VERSION}"
            DEBIAN_FRONTEND=noninteractive apt-get install -y $CI_PACKAGE=$PACKAGE_VERSION
          done
        else
          CI_URL="gs://kubernetes-release-dev/ci/$CI_VERSION-bazel/bin/linux/amd64"

          for CI_PACKAGE in "${PACKAGES_TO_TEST[@]}"; do
            echo "* downloading binary: $CI_URL/$CI_PACKAGE"
            ${GSUTIL} cp "$CI_URL/$CI_PACKAGE" "$CI_DIR/$CI_PACKAGE"
            chmod +x "$CI_DIR/$CI_PACKAGE"
            mv "$CI_DIR/$CI_PACKAGE" "/usr/bin/$CI_PACKAGE"
          done

          systemctl restart kubelet
        fi

        for CI_CONTAINER in "${CONTAINERS_TO_TEST[@]}"; do
          echo "* downloading package: $CI_URL/$CI_CONTAINER.$CONTAINER_EXT"
          ${GSUTIL} cp "$CI_URL/$CI_CONTAINER.$CONTAINER_EXT" "$CI_DIR/$CI_CONTAINER.$CONTAINER_EXT"
          ${SUDO} ctr -n k8s.io images import "$CI_DIR/$CI_CONTAINER.$CONTAINER_EXT" || echo "* ignoring expected 'ctr images import' result"
          ${SUDO} ctr -n k8s.io images tag k8s.gcr.io/$CI_CONTAINER-amd64:"${CI_VERSION//+/_}" k8s.gcr.io/$CI_CONTAINER:"${CI_VERSION//+/_}"
          ${SUDO} ctr -n k8s.io images tag k8s.gcr.io/$CI_CONTAINER-amd64:"${CI_VERSION//+/_}" gcr.io/kubernetes-ci-images/$CI_CONTAINER:"${CI_VERSION//+/_}"
        done
      fi

      echo "* checking binary versions"

      echo "ctr version: " $(ctr version)
      echo "kubeadm version: " $(kubeadm version -o=short)
      echo "kubectl version: " $(kubectl version --client=true --short=true)
      echo "kubelet version: " $(kubelet --version)

      echo "$LINE_SEPARATOR"