Add script for presubmit and CI jobs

Author: wangzhen127

.gitignore

@@ -1,3 +1,5 @@
 /bin/
 /Dockerfile
 /*.tar.gz
+ci.env
+pr.env

test/build.sh

@@ -0,0 +1,118 @@
+#!/bin/bash
+
+# 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.
+
+# This script build node problem detector for presubmit and CI jobs and push to
+# staging, so that kubernetes E2E tests have access to the build.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+
+NPD_STAGING_PATH=${NPD_STAGING_PATH:-"gs://node-problem-detector-staging"}
+NPD_STAGING_REGISTRY=${NPD_STAGING_REGISTRY:-"gcr.io/node-problem-detector-staging"}
+PR_ENV_FILENAME=${PR_ENV_FILENAME:-"pr.env"}
+CI_ENV_FILENAME=${CI_ENV_FILENAME:-"ci.env"}
+ROOT_PATH=$(git rev-parse --show-toplevel)
+
+function print-help() {
+  echo "Usage: build.sh [args...]"
+  echo "Available arguments:"
+  echo "  pr [pull_refs]: Build node-problem-detector for presubmit jobs and push to staging."
+  echo "  ci:             Build node-problem-detector for CI jobs and push to staging."
+  echo "  get-ci-env:     Download environment variable file from staging for CI job."
+}
+
+function get-version() {
+  if [ -d .git ]; then
+    echo `git describe --tags --dirty`
+  else
+    echo "UNKNOWN"
+  fi
+}
+
+function write-env-file() {
+  local -r env_file="${1}"
+  if [[ -z "${env_file}" ]]; then
+    echo "ERROR: env_file is missing."
+    exit 1
+  fi
+
+  cat > ${ROOT_PATH}/${env_file} <<EOF
+export EXTRA_ENVS=NODE_PROBLEM_DETECTOR_IMAGE=${REGISTRY}/node-problem-detector:${TAG}
+export NODE_PROBLEM_DETECTOR_RELEASE_PATH=${UPLOAD_PATH}
+export NODE_PROBLEM_DETECTOR_VERSION=${VERSION}
+export NODE_PROBLEM_DETECTOR_TAR_HASH=$(sha1sum ${ROOT_PATH}/node-problem-detector-${VERSION}.tar.gz | cut -d ' ' -f1)
+EOF
+}
+
+function build-pr() {
+  local -r PR="${1}"
+  if [[ -z "${PR}" ]]; then
+    echo "ERROR: pull_refs is missing."
+    print-help
+    exit 1
+  fi
+
+  export UPLOAD_PATH="${NPD_STAGING_PATH}/pr/${PR}"
+  export REGISTRY="${NPD_STAGING_REGISTRY}/pr/${PR}"
+  export VERSION=$(get-version)
+  export TAG="${VERSION}"
+  make push
+  write-env-file ${PR_ENV_FILENAME}
+}
+
+function build-ci() {
+  export UPLOAD_PATH="${NPD_STAGING_PATH}/ci"
+  export REGISTRY="${NPD_STAGING_REGISTRY}/ci"
+  export VERSION=$(get-version)
+  export TAG="${VERSION}"
+  make push
+  write-env-file ${CI_ENV_FILENAME}
+  gsutil mv ${ROOT_PATH}/${CI_ENV_FILENAME} ${UPLOAD_PATH}
+}
+
+function get-ci-env() {
+  gsutil cp ${NPD_STAGING_PATH}/ci/${CI_ENV_FILENAME} ${ROOT_PATH}/${CI_ENV_FILENAME}
+}
+
+
+cd ${ROOT_PATH}
+
+if [[ "$#" -ne 1 && "$#" -ne 2 ]]; then
+  echo "ERROR: Illegal number of parameters."
+  print-help
+  exit 1
+fi
+COMMAND="${1}"
+
+if [[ "${COMMAND}" == "pr" ]]; then
+  if [[ "$#" -ne 2 ]]; then
+    echo "ERROR: pull_refs is missing."
+    print-help
+    exit 1
+  fi
+  build-pr "${2}"
+elif [[ "${COMMAND}" == "ci" ]]; then
+  build-ci
+elif [[ "${COMMAND}" == "get-ci-env" ]]; then
+  get-ci-env
+else
+  echo "ERROR: Invalid command."
+  print-help
+  exit 1
+fi
+