Add script to automatically install docker on jenkins machines

hack/jenkins/common.sh

@@ -33,6 +33,9 @@ export PATH=$PATH:"/usr/local/bin/:/usr/local/go/bin/:$GOPATH/bin"
 # installing golang so we could do go get for gopogh
 sudo ./installers/check_install_golang.sh "1.15.2" "/usr/local" || true
 
+# install docker and kubectl if not present
+sudo ./installers/check_install_docker.sh
+
 docker rm -f -v $(docker ps -aq) >/dev/null 2>&1 || true
 docker volume prune -f || true
 docker system df || true

hack/jenkins/installers/check_install_docker.sh

+#!/bin/bash
+
+# Copyright 2016 The Kubernetes Authors All rights reserved.
+#
+# 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.
+
+set -eux -o pipefail
+
+function install_docker() {
+  sudo apt-get -y update
+  sudo apt-get -y install apt-transport-https ca-certificates curl gnupg-agent software-properties-common  curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key add -
+  sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/debian `lsb_release -cs` stable"
+  sudo apt-get -y update
+  sudo apt-get -y install docker-ce docker-ce-cli containerd.io
+  sudo usermod -aG docker jenkins
+}
+
+function install_kubectl() {
+  curl -LO "https://storage.googleapis.com/kubernetes-release/release/`curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt`/bin/linux/amd64/kubectl"
+  chmod +x ./kubectl
+  sudo mv ./kubectl /usr/local/bin/kubectl
+}
+
+echo "Checking docker"
+if ! docker version &>/dev/null; then
+  echo "No docker installation found, installing docker."
+  install_docker
+fi
+
+echo "Checking kubectl"
+if ! kubectl version &>/dev/null; then
+  echo "No kubectl installation found, installing kubectl"
+  install_kubectl
+fi

hack/jenkins/installers/check_install_golang.sh

@@ -18,7 +18,7 @@ set -eux -o pipefail
 
 if (($# < 2)); then
   echo "ERROR: given ! ($#) number of parameters but expect 2."
-  echo "USAGE: ./check_and_install_golang.sh VERSION_TO_INSTALL INSTALL_PATH"
+  echo "USAGE: ./check_install_golang.sh VERSION_TO_INSTALL INSTALL_PATH"
   exit 1
 fi