mirror of
				https://github.com/k3s-io/kubernetes.git
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			296 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			296 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Bash
		
	
	
		
			Executable File
		
	
	
	
	
#!/usr/bin/env bash
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# Copyright 2015 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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#     http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# This script uploads metadata and test results to Google Cloud Storage, in the
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# location indicated by JENKINS_GCS_LOGS_PATH. By default, we use the Google
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# kubernetes-jenkins bucket.
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#
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# The script looks for one of two environment variables to be set:
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#   JENKINS_BUILD_STARTED: set to a nonempty string to upload version
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#     information to 'started.json'. The value of the variable is not
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#     currently used.
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#   JENKINS_BUILD_FINISHED: set to the Jenkins build result to upload the build
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#     result to 'finished.json', any test artifacts, and update the
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#     'latest-build.txt' file pointer. Since this script uses gsutil directly,
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#     it's a bit faster at uploading large numbers of files than the GCS Jenkins
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#     plugin. It also makes use of gsutil's gzip functionality.
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#
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# Note: for magicfile support to work correctly, the "file" utility must be
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# installed.
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# TODO(rmmh): rewrite this script in Python so we can actually test it!
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set -o errexit
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set -o nounset
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set -o pipefail
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if [[ -n "${JENKINS_BUILD_STARTED:-}" && -n "${JENKINS_BUILD_FINISHED:-}" ]]; then
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  echo "Error: JENKINS_BUILD_STARTED and JENKINS_BUILD_FINISHED should not both be set!"
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  exit 1
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fi
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if [[ ! ${JENKINS_UPLOAD_TO_GCS:-y} =~ ^[yY]$ ]]; then
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  exit 0
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fi
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# Attempt to determine if we're running against a repo other than
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# kubernetes/kubernetes to determine whether to place PR logs in a different
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# location.
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#
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# In the current CI system, the tracked repo is named remote. This is not true
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# in general for most devs, where origin and upstream are more common.
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GCS_SUBDIR=""
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readonly remote_git_repo=$(git config --get remote.remote.url | sed 's:.*github.com/::' || true)
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if [[ -n "${remote_git_repo}" ]]; then
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  case "${remote_git_repo}" in
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    # main repo: nothing extra
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    kubernetes/kubernetes) GCS_SUBDIR="" ;;
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    # a different repo on the k8s org: just the repo name (strip kubernetes/)
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    kubernetes/*) GCS_SUBDIR="${remote_git_repo#kubernetes/}/" ;;
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    # any other repo: ${org}_${repo} (replace / with _)
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    *) GCS_SUBDIR="${remote_git_repo/\//_}/" ;;
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  esac
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  if [[ "${remote_git_repo}" != "kubernetes/kubernetes" ]]; then
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    # also store the repo in started.json, so Gubernator can link it properly.
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    export BUILD_METADATA_REPO="${remote_git_repo}"
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  fi
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fi
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if [[ ${JOB_NAME} =~ -pull- ]]; then
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  : ${JENKINS_GCS_LOGS_PATH:="gs://kubernetes-jenkins/pr-logs/pull/${GCS_SUBDIR}${ghprbPullId:-unknown}"}
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  : ${JENKINS_GCS_LATEST_PATH:="gs://kubernetes-jenkins/pr-logs/directory"}
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  : ${JENKINS_GCS_LOGS_INDIRECT:="gs://kubernetes-jenkins/pr-logs/directory/${JOB_NAME}"}
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else
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  : ${JENKINS_GCS_LOGS_PATH:="gs://kubernetes-jenkins/logs"}
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  : ${JENKINS_GCS_LATEST_PATH:="gs://kubernetes-jenkins/logs"}
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  : ${JENKINS_GCS_LOGS_INDIRECT:=""}
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fi
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readonly artifacts_path="${WORKSPACE}/_artifacts"
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readonly gcs_job_path="${JENKINS_GCS_LOGS_PATH}/${JOB_NAME}"
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readonly gcs_build_path="${gcs_job_path}/${BUILD_NUMBER}"
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readonly gcs_latest_path="${JENKINS_GCS_LATEST_PATH}/${JOB_NAME}"
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readonly gcs_indirect_path="${JENKINS_GCS_LOGS_INDIRECT}"
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readonly gcs_acl="public-read"
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readonly results_url=${gcs_build_path//"gs:/"/"https://console.cloud.google.com/storage/browser"}
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readonly timestamp=$(date +%s)
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#########################################################################
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# $0 is called from different contexts so figure out where kubernetes is.
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# Sets non-exported global kubernetes_base_path and defaults to "."
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function set_kubernetes_base_path () {
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  for kubernetes_base_path in kubernetes go/src/k8s.io/kubernetes .; do
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    # Pick a canonical item to find in a kubernetes tree which could be a
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    # raw source tree or an expanded tarball.
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    [[ -f ${kubernetes_base_path}/cluster/common.sh ]] && break
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  done
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}
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#########################################################################
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# Try to discover the kubernetes version.
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# prints version
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function find_version() {
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  (
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  # Where are we?
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  # This could be set in the global scope at some point if we need to 
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  # discover the kubernetes path elsewhere.
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  set_kubernetes_base_path
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  cd ${kubernetes_base_path}
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  if [[ -e "version" ]]; then
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    cat version
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  elif [[ -e "hack/lib/version.sh" ]]; then
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    export KUBE_ROOT="."
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    source "hack/lib/version.sh"
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    kube::version::get_version_vars
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    echo "${KUBE_GIT_VERSION-}"
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  else
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    # Last resort from the started.json
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    gsutil cat ${gcs_build_path}/started.json 2>/dev/null |\
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     sed -n 's/ *"version": *"\([^"]*\)",*/\1/p'
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  fi
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  )
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}
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# Output started.json. Use test function below!
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function print_started() {
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  local metadata_keys=$(compgen -e | grep ^BUILD_METADATA_)
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  echo "{"
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  echo "    \"version\": \"${version}\","  # TODO(fejta): retire
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  echo "    \"job-version\": \"${version}\","
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  echo "    \"timestamp\": ${timestamp},"
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  if [[ -n "${metadata_keys}" ]]; then
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    # Any exported variables of the form BUILD_METADATA_KEY=VALUE
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    # will be available as started["metadata"][KEY.lower()].
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    echo "    \"metadata\": {"
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    local sep=""  # leading commas are easy to track
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    for env_var in $metadata_keys; do
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      local var_upper="${env_var#BUILD_METADATA_}"
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      echo "        $sep\"${var_upper,,}\": \"${!env_var}\""
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      sep=","
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    done
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    echo "    },"
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  fi
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  echo "    \"jenkins-node\": \"${NODE_NAME:-}\""
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  echo "}"
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}
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# Use this to test changes to print_started.
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if [[ -n "${TEST_STARTED_JSON:-}" ]]; then
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  version=$(find_version)
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  cat <(print_started) | jq .
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  exit
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fi
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function upload_version() {
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  local -r version=$(find_version)
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  local upload_attempt
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  echo -n 'Run starting at '; date -d "@${timestamp}"
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  if [[ -n "${version}" ]]; then
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    echo "Found Kubernetes version: ${version}"
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  else
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    echo "Could not find Kubernetes version"
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  fi
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  local -r json_file="${gcs_build_path}/started.json"
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  for upload_attempt in {1..3}; do
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    echo "Uploading version to: ${json_file} (attempt ${upload_attempt})"
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    gsutil -q -h "Content-Type:application/json" cp -a "${gcs_acl}" <(print_started) "${json_file}" || continue
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    break
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  done
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}
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#########################################################################
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# Maintain a single file storing the full build version, Jenkins' job number
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# build state.  Limit its size so it does not grow unbounded.
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# This is primarily used for and by the
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# github.com/kubernetes/release/find_green_build tool.
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# @param build_result - the state of the build
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#
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function update_job_result_cache() {
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  local -r build_result=$1
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  local -r version=$(find_version)
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  local -r job_results=${gcs_job_path}/jobResultsCache.json
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  local -r tmp_results="${WORKSPACE}/_tmp/jobResultsCache.tmp"
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  # TODO: This constraint is insufficient.  The boundary for secondary
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  #       job cache should be date based on the last primary build.
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  #       The issue is we are trying to find a matched green set of results
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  #       at a given hash, but all of the jobs run at wildly different lengths.
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  local -r cache_size=300
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  local upload_attempt
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  if [[ -n "${version}" ]]; then
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    echo "Found Kubernetes version: ${version}"
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  else
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    echo "Could not find Kubernetes version"
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  fi
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  mkdir -p ${tmp_results%/*}
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  # Construct a valid json file
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  echo "[" > ${tmp_results}
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  for upload_attempt in $(seq 3); do
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    echo "Copying ${job_results} to ${tmp_results} (attempt ${upload_attempt})"
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    # The sed construct below is stripping out only the "version" lines
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    # and then ensuring there's a single comma at the end of the line.
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    gsutil -q cat ${job_results} 2>&- |\
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     sed -n 's/^\({"version".*}\),*/\1,/p' |\
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     tail -${cache_size} >> ${tmp_results} || continue
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    break
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  done
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  echo "{\"version\": \"${version}\", \"buildnumber\": \"${BUILD_NUMBER}\"," \
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       "\"result\": \"${build_result}\"}" >> ${tmp_results}
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  echo "]" >> ${tmp_results}
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  for upload_attempt in $(seq 3); do
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    echo "Copying ${tmp_results} to ${job_results} (attempt ${upload_attempt})"
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    gsutil -q -h "Content-Type:application/json" cp -a "${gcs_acl}" \
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           ${tmp_results} ${job_results} || continue
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    break
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  done
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  rm -f ${tmp_results}
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}
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function upload_artifacts_and_build_result() {
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  local -r build_result=$1
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  local upload_attempt
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  echo -n 'Run finished at '; date -d "@${timestamp}"
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  for upload_attempt in {1..3}; do
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    echo "Uploading to ${gcs_build_path} (attempt ${upload_attempt})"
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    echo "Uploading build result: ${build_result}"
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    gsutil -q -h "Content-Type:application/json" cp -a "${gcs_acl}" <(
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      echo "{"
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      echo "    \"result\": \"${build_result}\","
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      echo "    \"timestamp\": ${timestamp}"
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      echo "}"
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    ) "${gcs_build_path}/finished.json" || continue
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    if [[ -d "${artifacts_path}" && -n $(ls -A "${artifacts_path}") ]]; then
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      echo "Uploading artifacts"
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      gsutil -m -q -o "GSUtil:use_magicfile=True" cp -a "${gcs_acl}" -r -c \
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        -z log,txt,xml "${artifacts_path}" "${gcs_build_path}/artifacts" || continue
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    fi
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    if [[ -e "${WORKSPACE}/build-log.txt" ]]; then
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      echo "Uploading build log"
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      gsutil -q cp -Z -a "${gcs_acl}" "${WORKSPACE}/build-log.txt" "${gcs_build_path}"
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    fi
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    # For pull jobs, keep a canonical ordering for tools that want to examine
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    # the output.
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    if [[ "${gcs_indirect_path}" != "" ]]; then
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      echo "Writing ${gcs_build_path} to ${gcs_indirect_path}/${BUILD_NUMBER}.txt"
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      echo "${gcs_build_path}" | \
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        gsutil -q -h "Content-Type:text/plain" \
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          cp -a "${gcs_acl}" - "${gcs_indirect_path}/${BUILD_NUMBER}.txt" || continue
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      echo "Marking build ${BUILD_NUMBER} as the latest completed build for this PR"
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      echo "${BUILD_NUMBER}" | \
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        gsutil -q -h "Content-Type:text/plain" -h "Cache-Control:private, max-age=0, no-transform" \
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          cp -a "${gcs_acl}" - "${gcs_job_path}/latest-build.txt" || continue
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    fi
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    # Mark this build as the latest completed.
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    echo "Marking build ${BUILD_NUMBER} as the latest completed build"
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    echo "${BUILD_NUMBER}" | \
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      gsutil -q -h "Content-Type:text/plain" -h "Cache-Control:private, max-age=0, no-transform" \
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        cp -a "${gcs_acl}" - "${gcs_latest_path}/latest-build.txt" || continue
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    break  # all uploads succeeded if we hit this point
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  done
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  echo -e "\n\n\n*** View logs and artifacts at ${results_url} ***\n\n"
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}
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if [[ -z "${BOOTSTRAP_MIGRATION:-}" ]]; then
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  if [[ -n "${JENKINS_BUILD_STARTED:-}" ]]; then
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    upload_version
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  elif [[ -n "${JENKINS_BUILD_FINISHED:-}" ]]; then
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    upload_artifacts_and_build_result ${JENKINS_BUILD_FINISHED}
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    update_job_result_cache ${JENKINS_BUILD_FINISHED}
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  else
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    echo "ERROR: Called without JENKINS_BUILD_STARTED or JENKINS_BUILD_FINISHED set."
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    echo "ERROR: this should not happen"
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    exit 1
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  fi
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fi
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