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perfdash.go
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perfdash.go
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/*
Copyright 2015 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.
*/
package main
import (
"encoding/json"
"fmt"
"net/http"
"os"
"time"
"github.com/spf13/pflag"
"k8s.io/klog"
)
const (
pollDuration = 10 * time.Minute
errorDelay = 10 * time.Second
maxBuilds = 100
s3Mode = "s3"
gcsMode = "gcs"
)
var options = &DownloaderOptions{}
var (
addr = pflag.String("address", ":8080", "The address to serve web data on")
www = pflag.Bool("www", false, "If true, start a web-server to server performance data")
wwwDir = pflag.String("dir", "www", "If non-empty, add a file server for this directory at the root of the web server")
storageURL = pflag.String("storageURL", "https://prow.k8s.io/view/gcs", "Name of the data bucket")
globalConfig = make(map[string]string)
// Storage Service Bucket and Path flags
logsBucket = pflag.String("logsBucket", "kubernetes-jenkins", "Name of the data bucket")
logsPath = pflag.String("logsPath", "logs", "Path to the logs inside the logs bucket")
// Google GCS Specific flags
credentialPath = pflag.String("credentialPath", "", "Path to the gcs credential json")
useADC = pflag.Bool("useADC", false, "If true, use Application Default Credentials. See https://cloud.google.com/docs/authentication/production for details")
// AWS S3 Specific flags
awsRegion = pflag.String("aws-region", "us-west-2", "AWS region of the S3 bucket")
allowParsersForAllTests = pflag.Bool("allow-parsers-matching-all-tests", true, "Allow parsers for common measurement matching any test name")
)
func initDownloaderOptions() {
pflag.StringVar(&options.Mode, "mode", gcsMode, "Storage provider from which to download metrics from. Options are 's3' or 'gcs'. The default is 'gcs'.")
pflag.BoolVar(&options.OverrideBuildCount, "force-builds", false, "Whether to enforce number of builds to process as passed via --builds flag. "+
"This would override values defined by \"perfDashBuildsCount\" label on prow job")
pflag.IntVar(&options.DefaultBuildsCount, "builds", maxBuilds, "Total builds number")
pflag.StringArrayVar(&options.ConfigPaths, "configPath", []string{}, "Paths/urls to the prow config")
pflag.StringArrayVar(&options.GithubConfigDirs, "githubConfigDir", []string{}, "Github API url to the prow config directory, all configs from this dir will be used."+
"To specify more than one dir, this arg shall be specified multiple times, one time for each dir.")
}
func main() {
klog.InitFlags(nil)
klog.Infof("Starting perfdash...")
if err := run(); err != nil {
klog.Error(err)
os.Exit(1)
}
}
func run() error {
initDownloaderOptions()
pflag.Parse()
initGlobalConfig()
if options.DefaultBuildsCount > maxBuilds || options.DefaultBuildsCount < 0 {
klog.Infof("Invalid number of builds: %d, setting to %d", options.DefaultBuildsCount, maxBuilds)
options.DefaultBuildsCount = maxBuilds
}
var metricsBucket MetricsBucket
var err error
switch options.Mode {
case gcsMode:
metricsBucket, err = NewGCSMetricsBucket(*logsBucket, *logsPath, *credentialPath, *useADC)
case s3Mode:
metricsBucket, err = NewS3MetricsBucket(*logsBucket, *logsPath, *awsRegion)
default:
return fmt.Errorf("unexpected mode: %s", options.Mode)
}
if err != nil {
return fmt.Errorf("error creating metrics bucket downloader: %v", err)
}
downloader := NewDownloader(options, metricsBucket, *allowParsersForAllTests)
result := make(JobToCategoryData)
if !*www {
result, err = downloader.getData()
if err != nil {
return fmt.Errorf("fetching data failed: %v", err)
}
prettyResult, err := json.MarshalIndent(result, "", " ")
if err != nil {
return fmt.Errorf("formatting data failed: %v", err)
}
klog.Infof("Result: %v", string(prettyResult))
return nil
}
go func() {
for {
klog.Infof("Fetching new data...")
result, err = downloader.getData()
if err != nil {
klog.Errorf("Error fetching data: %v", err)
time.Sleep(errorDelay)
continue
}
klog.Infof("Data fetched, sleeping %v...", pollDuration)
time.Sleep(pollDuration)
}
}()
klog.Infof("Starting server...")
http.Handle("/", http.FileServer(http.Dir(*wwwDir)))
http.HandleFunc("/jobnames", result.ServeJobNames)
http.HandleFunc("/metriccategorynames", result.ServeCategoryNames)
http.HandleFunc("/metricnames", result.ServeMetricNames)
http.HandleFunc("/buildsdata", result.ServeBuildsData)
http.HandleFunc("/config", serveConfig)
return http.ListenAndServe(*addr, nil)
}
func initGlobalConfig() {
globalConfig["logsBucket"] = *logsBucket
globalConfig["logsPath"] = *logsPath
globalConfig["storageURL"] = *storageURL
}
func serveConfig(res http.ResponseWriter, req *http.Request) {
serveHTTPObject(res, req, &globalConfig)
}