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main.go
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main.go
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/*
Copyright 2016 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 (
"bytes"
"context"
"crypto/sha256"
"encoding/base64"
"encoding/json"
"errors"
"flag"
"fmt"
"html/template"
"io/ioutil"
"net/http"
"net/http/httputil"
"net/url"
"os"
"path"
"strconv"
"strings"
"time"
"github.com/NYTimes/gziphandler"
"github.com/gorilla/csrf"
"github.com/gorilla/sessions"
"github.com/prometheus/client_golang/prometheus"
"github.com/sirupsen/logrus"
"golang.org/x/oauth2"
coreapi "k8s.io/api/core/v1"
kerrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/sets"
corev1 "k8s.io/client-go/kubernetes/typed/core/v1"
ctrlruntimeclient "sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/manager"
"sigs.k8s.io/yaml"
prowapi "k8s.io/test-infra/prow/apis/prowjobs/v1"
prowv1 "k8s.io/test-infra/prow/client/clientset/versioned/typed/prowjobs/v1"
"k8s.io/test-infra/prow/config"
"k8s.io/test-infra/prow/config/secret"
"k8s.io/test-infra/prow/deck/jobs"
prowflagutil "k8s.io/test-infra/prow/flagutil"
"k8s.io/test-infra/prow/git/v2"
prowgithub "k8s.io/test-infra/prow/github"
"k8s.io/test-infra/prow/githuboauth"
"k8s.io/test-infra/prow/interrupts"
"k8s.io/test-infra/prow/io"
"k8s.io/test-infra/prow/kube"
"k8s.io/test-infra/prow/logrusutil"
"k8s.io/test-infra/prow/metrics"
"k8s.io/test-infra/prow/pjutil"
"k8s.io/test-infra/prow/pluginhelp"
"k8s.io/test-infra/prow/plugins"
"k8s.io/test-infra/prow/plugins/trigger"
"k8s.io/test-infra/prow/prstatus"
"k8s.io/test-infra/prow/simplifypath"
"k8s.io/test-infra/prow/spyglass"
spyglassapi "k8s.io/test-infra/prow/spyglass/api"
"k8s.io/test-infra/prow/spyglass/lenses/common"
// Import standard spyglass viewers
"k8s.io/test-infra/prow/spyglass/lenses"
_ "k8s.io/test-infra/prow/spyglass/lenses/buildlog"
_ "k8s.io/test-infra/prow/spyglass/lenses/coverage"
_ "k8s.io/test-infra/prow/spyglass/lenses/junit"
_ "k8s.io/test-infra/prow/spyglass/lenses/metadata"
_ "k8s.io/test-infra/prow/spyglass/lenses/podinfo"
_ "k8s.io/test-infra/prow/spyglass/lenses/restcoverage"
)
// Omittable ProwJob fields.
const (
// Annotations maps to the serialized value of <ProwJob>.Annotations.
Annotations string = "annotations"
// Labels maps to the serialized value of <ProwJob>.Labels.
Labels string = "labels"
// DecorationConfig maps to the serialized value of <ProwJob>.Spec.DecorationConfig.
DecorationConfig string = "decoration_config"
// PodSpec maps to the serialized value of <ProwJob>.Spec.PodSpec.
PodSpec string = "pod_spec"
)
type options struct {
configPath string
jobConfigPath string
instrumentation prowflagutil.InstrumentationOptions
kubernetes prowflagutil.KubernetesOptions
github prowflagutil.GitHubOptions
tideURL string
hookURL string
oauthURL string
githubOAuthConfigFile string
cookieSecretFile string
redirectHTTPTo string
hiddenOnly bool
pregeneratedData string
staticFilesLocation string
templateFilesLocation string
showHidden bool
spyglass bool
spyglassFilesLocation string
storage prowflagutil.StorageClientOptions
gcsNoAuth bool
gcsCookieAuth bool
rerunCreatesJob bool
allowInsecure bool
dryRun bool
pluginConfig string
}
func (o *options) Validate() error {
if err := o.kubernetes.Validate(false); err != nil {
return err
}
if err := o.github.Validate(o.dryRun); err != nil {
return err
}
if o.configPath == "" {
return errors.New("required flag --config-path was unset")
}
// TODO(Katharine): remove this handling after 2019-10-31
// We used to set a default value for --cookie-secret-file, but we also have code that
// assumes we don't. If it's not set, but it is required that it is, and a file exists
// at the old default, we set it back to that default and emit an error.
if o.cookieSecretFile == "" && o.oauthURL != "" {
if _, err := os.Stat("/etc/cookie/secret"); err == nil {
o.cookieSecretFile = "/etc/cookie/secret"
logrus.Error("You haven't set --cookie-secret, but you're assuming it is set to '/etc/cookie/secret'. Add --cookie-secret=/etc/cookie/secret to your deck instance's arguments. Your configuration will stop working at the end of October 2019.")
}
}
if o.oauthURL != "" {
if o.githubOAuthConfigFile == "" {
return errors.New("an OAuth URL was provided but required flag --github-oauth-config-file was unset")
}
if o.cookieSecretFile == "" {
return errors.New("an OAuth URL was provided but required flag --cookie-secret was unset")
}
}
if o.hiddenOnly && o.showHidden {
return errors.New("'--hidden-only' and '--show-hidden' are mutually exclusive, the first one shows only hidden job, the second one shows both hidden and non-hidden jobs")
}
if o.gcsNoAuth {
logrus.Warn("'--gcs-no-auth' is deprecated and is not used anymore. We always fall back to an anonymous client now, if all other options fail.")
}
if o.storage.GCSCredentialsFile != "" && o.gcsNoAuth {
return errors.New("--gcs-credentials-file must not be set when --gcs-no-auth is set")
}
return nil
}
func gatherOptions(fs *flag.FlagSet, args ...string) options {
var o options
fs.StringVar(&o.configPath, "config-path", "", "Path to config.yaml.")
fs.StringVar(&o.jobConfigPath, "job-config-path", "", "Path to prow job configs.")
fs.StringVar(&o.tideURL, "tide-url", "", "Path to tide. If empty, do not serve tide data.")
fs.StringVar(&o.hookURL, "hook-url", "", "Path to hook plugin help endpoint.")
fs.StringVar(&o.oauthURL, "oauth-url", "", "Path to deck user dashboard endpoint.")
fs.StringVar(&o.githubOAuthConfigFile, "github-oauth-config-file", "/etc/github/secret", "Path to the file containing the GitHub App Client secret.")
fs.StringVar(&o.cookieSecretFile, "cookie-secret", "", "Path to the file containing the cookie secret key.")
// use when behind a load balancer
fs.StringVar(&o.redirectHTTPTo, "redirect-http-to", "", "Host to redirect http->https to based on x-forwarded-proto == http.")
// use when behind an oauth proxy
fs.BoolVar(&o.hiddenOnly, "hidden-only", false, "Show only hidden jobs. Useful for serving hidden jobs behind an oauth proxy.")
fs.StringVar(&o.pregeneratedData, "pregenerated-data", "", "Use API output from another prow instance. Used by the prow/cmd/deck/runlocal script")
fs.BoolVar(&o.showHidden, "show-hidden", false, "Show all jobs, including hidden ones")
fs.BoolVar(&o.spyglass, "spyglass", false, "Use Prow built-in job viewing instead of Gubernator")
fs.StringVar(&o.spyglassFilesLocation, "spyglass-files-location", "/lenses", "Location of the static files for spyglass.")
fs.StringVar(&o.staticFilesLocation, "static-files-location", "/static", "Path to the static files")
fs.StringVar(&o.templateFilesLocation, "template-files-location", "/template", "Path to the template files")
fs.BoolVar(&o.gcsNoAuth, "gcs-no-auth", false, "Whether to use anonymous auth for GCP. Requires when running outside of GCP and not setting gcs-credentials-file")
fs.BoolVar(&o.gcsCookieAuth, "gcs-cookie-auth", false, "Use storage.cloud.google.com instead of signed URLs")
fs.BoolVar(&o.rerunCreatesJob, "rerun-creates-job", false, "Change the re-run option in Deck to actually create the job. **WARNING:** Only use this with non-public deck instances, otherwise strangers can DOS your Prow instance")
fs.BoolVar(&o.allowInsecure, "allow-insecure", false, "Allows insecure requests for CSRF and GitHub oauth.")
fs.BoolVar(&o.dryRun, "dry-run", false, "Whether or not to make mutating API calls to GitHub.")
fs.StringVar(&o.pluginConfig, "plugin-config", "", "Path to plugin config file, probably /etc/plugins/plugins.yaml")
o.instrumentation.AddFlags(fs)
o.kubernetes.AddFlags(fs)
o.github.AddFlags(fs)
o.github.AllowAnonymous = true
o.github.AllowDirectAccess = true
o.storage.AddFlags(fs)
fs.Parse(args)
return o
}
func staticHandlerFromDir(dir string) http.Handler {
return gziphandler.GzipHandler(handleCached(http.FileServer(http.Dir(dir))))
}
var (
httpRequestDuration = metrics.HttpRequestDuration("deck", 0.005, 20)
httpResponseSize = metrics.HttpResponseSize("deck", 16384, 33554432)
traceHandler = metrics.TraceHandler(simplifier, httpRequestDuration, httpResponseSize)
)
type authCfgGetter func(*prowapi.Refs) *prowapi.RerunAuthConfig
func init() {
prometheus.MustRegister(httpRequestDuration)
prometheus.MustRegister(httpResponseSize)
}
var simplifier = simplifypath.NewSimplifier(l("", // shadow element mimicing the root
l(""),
l("badge.svg"),
l("command-help"),
l("config"),
l("data.js"),
l("favicon.ico"),
l("github-login",
l("redirect")),
l("github-link"),
l("job-history",
v("job")),
l("log"),
l("plugin-config"),
l("plugin-help"),
l("plugins"),
l("pr"),
l("pr-data.js"),
l("pr-history"),
l("prowjob"),
l("prowjobs.js"),
l("rerun"),
l("spyglass",
l("static",
v("path")),
l("lens",
v("lens",
v("job")),
)),
l("static",
v("path")),
l("tide"),
l("tide-history"),
l("tide-history.js"),
l("tide.js"),
l("view",
v("job")),
))
// l and v keep the tree legible
func l(fragment string, children ...simplifypath.Node) simplifypath.Node {
return simplifypath.L(fragment, children...)
}
func v(fragment string, children ...simplifypath.Node) simplifypath.Node {
return simplifypath.V(fragment, children...)
}
func main() {
logrusutil.ComponentInit()
o := gatherOptions(flag.NewFlagSet(os.Args[0], flag.ExitOnError), os.Args[1:]...)
if err := o.Validate(); err != nil {
logrus.WithError(err).Fatal("Invalid options")
}
defer interrupts.WaitForGracefulShutdown()
pjutil.ServePProf(o.instrumentation.PProfPort)
// setup config agent, pod log clients etc.
configAgent := &config.Agent{}
if err := configAgent.Start(o.configPath, o.jobConfigPath, spglassConfigDefaulting); err != nil {
logrus.WithError(err).Fatal("Error starting config agent.")
}
cfg := configAgent.Config
var pluginAgent *plugins.ConfigAgent
if o.pluginConfig != "" {
pluginAgent = &plugins.ConfigAgent{}
if err := pluginAgent.Start(o.pluginConfig, false); err != nil {
logrus.WithError(err).Fatal("Error loading Prow plugin config.")
}
} else {
logrus.Info("No plugins configuration was provided to deck. You must provide one to reuse /test checks for rerun")
}
metrics.ExposeMetrics("deck", cfg().PushGateway, o.instrumentation.MetricsPort)
// signal to the world that we are healthy
// this needs to be in a separate port as we don't start the
// main server with the main mux until we're ready
health := pjutil.NewHealthOnPort(o.instrumentation.HealthPort)
mux := http.NewServeMux()
// setup common handlers for local and deployed runs
mux.Handle("/static/", http.StripPrefix("/static", staticHandlerFromDir(o.staticFilesLocation)))
mux.Handle("/config", gziphandler.GzipHandler(handleConfig(cfg, logrus.WithField("handler", "/config"))))
mux.Handle("/plugin-config", gziphandler.GzipHandler(handlePluginConfig(pluginAgent, logrus.WithField("handler", "/plugin-config"))))
mux.Handle("/favicon.ico", gziphandler.GzipHandler(handleFavicon(o.staticFilesLocation, cfg)))
// Set up handlers for template pages.
mux.Handle("/pr", gziphandler.GzipHandler(handleSimpleTemplate(o, cfg, "pr.html", nil)))
mux.Handle("/command-help", gziphandler.GzipHandler(handleSimpleTemplate(o, cfg, "command-help.html", nil)))
mux.Handle("/plugin-help", http.RedirectHandler("/command-help", http.StatusMovedPermanently))
mux.Handle("/tide", gziphandler.GzipHandler(handleSimpleTemplate(o, cfg, "tide.html", nil)))
mux.Handle("/tide-history", gziphandler.GzipHandler(handleSimpleTemplate(o, cfg, "tide-history.html", nil)))
mux.Handle("/plugins", gziphandler.GzipHandler(handleSimpleTemplate(o, cfg, "plugins.html", nil)))
runLocal := o.pregeneratedData != ""
var fallbackHandler func(http.ResponseWriter, *http.Request)
var pjListingClient jobs.PJListingClient
var githubClient deckGitHubClient
var gitClient git.ClientFactory
var podLogClients map[string]jobs.PodLogClient
if runLocal {
localDataHandler := staticHandlerFromDir(o.pregeneratedData)
fallbackHandler = localDataHandler.ServeHTTP
var fjc fakePjListingClientWrapper
var pjs prowapi.ProwJobList
staticPjsPath := path.Join(o.pregeneratedData, "prowjobs.json")
content, err := ioutil.ReadFile(staticPjsPath)
if err != nil {
logrus.WithError(err).Fatal("Failed to read jobs from prowjobs.json.")
}
if err = json.Unmarshal(content, &pjs); err != nil {
logrus.WithError(err).Fatal("Failed to unmarshal jobs from prowjobs.json.")
}
fjc.pjs = &pjs
pjListingClient = &fjc
} else {
fallbackHandler = http.NotFound
restCfg, err := o.kubernetes.InfrastructureClusterConfig(false)
if err != nil {
logrus.WithError(err).Fatal("Error getting infrastructure cluster config.")
}
mgr, err := manager.New(restCfg, manager.Options{
Namespace: cfg().ProwJobNamespace,
MetricsBindAddress: "0",
LeaderElection: false},
)
if err != nil {
logrus.WithError(err).Fatal("Error getting manager.")
}
// Force a cache for ProwJobs
if _, err := mgr.GetCache().GetInformer(interrupts.Context(), &prowapi.ProwJob{}); err != nil {
logrus.WithError(err).Fatal("Failed to get prowjob informer")
}
go func() {
if err := mgr.Start(interrupts.Context()); err != nil {
logrus.WithError(err).Fatal("Error starting manager.")
} else {
logrus.Info("Manager stopped gracefully.")
}
}()
mgrSyncCtx, mgrSyncCtxCancel := context.WithTimeout(context.Background(), 30*time.Second)
defer mgrSyncCtxCancel()
if synced := mgr.GetCache().WaitForCacheSync(mgrSyncCtx); !synced {
logrus.Fatal("Timed out waiting for cachesync")
}
pjListingClient = &pjListingClientWrapper{mgr.GetClient()}
// We use the GH client to resolve GH teams when determining who is permitted to rerun a job.
// When inrepoconfig is enabled, both the GitHubClient and the gitClient are used to resolve
// presubmits dynamically which we need for the PR history page.
secretAgent := &secret.Agent{}
if o.github.TokenPath != "" {
if err := secretAgent.Start([]string{o.github.TokenPath}); err != nil {
logrus.WithError(err).Fatal("Error starting secrets agent.")
}
githubClient, err = o.github.GitHubClient(secretAgent, o.dryRun)
if err != nil {
logrus.WithError(err).Fatal("Error getting GitHub client.")
}
g, err := o.github.GitClient(secretAgent, o.dryRun)
if err != nil {
logrus.WithError(err).Fatal("Error getting Git client.")
}
gitClient = git.ClientFactoryFrom(g)
} else {
if len(cfg().InRepoConfig.Enabled) > 0 {
logrus.Fatal("--github-token-path must be configured with a valid token when using the inrepoconfig feature")
}
}
buildClusterClients, err := o.kubernetes.BuildClusterClients(cfg().PodNamespace, false)
if err != nil {
logrus.WithError(err).Fatal("Error getting Kubernetes client.")
}
podLogClients = make(map[string]jobs.PodLogClient)
for clusterContext, client := range buildClusterClients {
podLogClients[clusterContext] = &podLogClient{client: client}
}
}
authCfgGetter := func(refs *prowapi.Refs) *prowapi.RerunAuthConfig {
rac := cfg().Deck.RerunAuthConfigs.GetRerunAuthConfig(refs)
return &rac
}
mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
if r.URL.Path != "/" {
fallbackHandler(w, r)
return
}
indexHandler := handleSimpleTemplate(o, cfg, "index.html", struct {
SpyglassEnabled bool
ReRunCreatesJob bool
}{
SpyglassEnabled: o.spyglass,
ReRunCreatesJob: o.rerunCreatesJob})
indexHandler(w, r)
})
ja := jobs.NewJobAgent(context.Background(), pjListingClient, o.hiddenOnly, o.showHidden, podLogClients, cfg)
ja.Start()
// setup prod only handlers. These handlers can work with runlocal as long
// as ja is properly mocked, more specifically pjListingClient inside ja
mux.Handle("/data.js", gziphandler.GzipHandler(handleData(ja, logrus.WithField("handler", "/data.js"))))
mux.Handle("/prowjobs.js", gziphandler.GzipHandler(handleProwJobs(ja, logrus.WithField("handler", "/prowjobs.js"))))
mux.Handle("/badge.svg", gziphandler.GzipHandler(handleBadge(ja)))
mux.Handle("/log", gziphandler.GzipHandler(handleLog(ja, logrus.WithField("handler", "/log"))))
if o.spyglass {
initSpyglass(cfg, o, mux, ja, githubClient, gitClient)
}
if runLocal {
mux = localOnlyMain(cfg, o, mux)
} else {
mux = prodOnlyMain(cfg, pluginAgent, authCfgGetter, githubClient, o, mux)
}
// signal to the world that we're ready
health.ServeReady()
// cookie secret will be used for CSRF protection and should be exactly 32 bytes
// we sometimes accept different lengths to stay backwards compatible
var csrfToken []byte
if o.cookieSecretFile != "" {
cookieSecretRaw, err := loadToken(o.cookieSecretFile)
if err != nil {
logrus.WithError(err).Fatal("Could not read cookie secret file")
}
decodedSecret, err := base64.StdEncoding.DecodeString(string(cookieSecretRaw))
if err != nil {
logrus.WithError(err).Fatal("Error decoding cookie secret")
}
if len(decodedSecret) == 32 {
csrfToken = decodedSecret
}
if len(decodedSecret) > 32 {
logrus.Warning("Cookie secret should be exactly 32 bytes. Consider truncating the existing cookie to that length")
hash := sha256.Sum256(decodedSecret)
csrfToken = hash[:]
}
if len(decodedSecret) < 32 {
if o.rerunCreatesJob {
logrus.Fatal("Cookie secret must be exactly 32 bytes")
return
}
logrus.Warning("Cookie secret should be exactly 32 bytes")
}
}
// if we allow direct reruns, we must protect against CSRF in all post requests using the cookie secret as a token
// for more information about CSRF, see https://github.com/kubernetes/test-infra/blob/master/prow/cmd/deck/csrf.md
empty := prowapi.Refs{}
if o.rerunCreatesJob && csrfToken == nil && !authCfgGetter(&empty).IsAllowAnyone() {
logrus.Fatal("Rerun creates job cannot be enabled without CSRF protection, which requires --cookie-secret to be exactly 32 bytes")
return
}
if csrfToken != nil {
CSRF := csrf.Protect(csrfToken, csrf.Path("/"), csrf.Secure(!o.allowInsecure))
logrus.WithError(http.ListenAndServe(":8080", CSRF(traceHandler(mux)))).Fatal("ListenAndServe returned.")
return
}
// setup done, actually start the server
server := &http.Server{Addr: ":8080", Handler: traceHandler(mux)}
interrupts.ListenAndServe(server, 5*time.Second)
}
// localOnlyMain contains logic used only when running locally, and is mutually exclusive with
// prodOnlyMain.
func localOnlyMain(cfg config.Getter, o options, mux *http.ServeMux) *http.ServeMux {
mux.Handle("/github-login", gziphandler.GzipHandler(handleSimpleTemplate(o, cfg, "github-login.html", nil)))
return mux
}
type podLogClient struct {
client corev1.PodInterface
}
func (c *podLogClient) GetLogs(name, container string) ([]byte, error) {
reader, err := c.client.GetLogs(name, &coreapi.PodLogOptions{Container: container}).Stream(context.TODO())
if err != nil {
return nil, err
}
defer reader.Close()
return ioutil.ReadAll(reader)
}
type pjListingClientWrapper struct {
reader ctrlruntimeclient.Reader
}
func (w *pjListingClientWrapper) List(
ctx context.Context,
pjl *prowapi.ProwJobList,
opts ...ctrlruntimeclient.ListOption) error {
return w.reader.List(ctx, pjl, opts...)
}
// fakePjListingClientWrapper implements pjListingClient for runlocal
type fakePjListingClientWrapper struct {
pjs *prowapi.ProwJobList
}
func (fjc *fakePjListingClientWrapper) List(ctx context.Context, pjl *prowapi.ProwJobList, lo ...ctrlruntimeclient.ListOption) error {
*pjl = *fjc.pjs
return nil
}
// prodOnlyMain contains logic only used when running deployed, not locally
func prodOnlyMain(cfg config.Getter, pluginAgent *plugins.ConfigAgent, authCfgGetter authCfgGetter, githubClient deckGitHubClient, o options, mux *http.ServeMux) *http.ServeMux {
prowJobClient, err := o.kubernetes.ProwJobClient(cfg().ProwJobNamespace, false)
if err != nil {
logrus.WithError(err).Fatal("Error getting ProwJob client for infrastructure cluster.")
}
// prowjob still needs prowJobClient for retrieving log
mux.Handle("/prowjob", gziphandler.GzipHandler(handleProwJob(prowJobClient, logrus.WithField("handler", "/prowjob"))))
if o.hookURL != "" {
mux.Handle("/plugin-help.js",
gziphandler.GzipHandler(handlePluginHelp(newHelpAgent(o.hookURL), logrus.WithField("handler", "/plugin-help.js"))))
}
// tide could potentially be mocked by static data
if o.tideURL != "" {
ta := &tideAgent{
log: logrus.WithField("agent", "tide"),
path: o.tideURL,
updatePeriod: func() time.Duration {
return cfg().Deck.TideUpdatePeriod.Duration
},
hiddenRepos: func() []string {
return cfg().Deck.HiddenRepos
},
hiddenOnly: o.hiddenOnly,
showHidden: o.showHidden,
}
ta.start()
mux.Handle("/tide.js", gziphandler.GzipHandler(handleTidePools(cfg, ta, logrus.WithField("handler", "/tide.js"))))
mux.Handle("/tide-history.js", gziphandler.GzipHandler(handleTideHistory(ta, logrus.WithField("handler", "/tide-history.js"))))
}
secure := !o.allowInsecure
// Handles link to github
mux.HandleFunc("/github-link", HandleGitHubLink(o.github.Host, secure))
// Enable Git OAuth feature if oauthURL is provided.
var goa *githuboauth.Agent
if o.oauthURL != "" {
githubOAuthConfigRaw, err := loadToken(o.githubOAuthConfigFile)
if err != nil {
logrus.WithError(err).Fatal("Could not read github oauth config file.")
}
cookieSecretRaw, err := loadToken(o.cookieSecretFile)
if err != nil {
logrus.WithError(err).Fatal("Could not read cookie secret file.")
}
var githubOAuthConfig githuboauth.Config
if err := yaml.Unmarshal(githubOAuthConfigRaw, &githubOAuthConfig); err != nil {
logrus.WithError(err).Fatal("Error unmarshalling github oauth config")
}
if !isValidatedGitOAuthConfig(&githubOAuthConfig) {
logrus.Fatal("Error invalid github oauth config")
}
decodedSecret, err := base64.StdEncoding.DecodeString(string(cookieSecretRaw))
if err != nil {
logrus.WithError(err).Fatal("Error decoding cookie secret")
}
if len(decodedSecret) == 0 {
logrus.Fatal("Cookie secret should not be empty")
}
cookie := sessions.NewCookieStore(decodedSecret)
githubOAuthConfig.InitGitHubOAuthConfig(cookie)
goa = githuboauth.NewAgent(&githubOAuthConfig, logrus.WithField("client", "githuboauth"))
oauthClient := githuboauth.NewClient(&oauth2.Config{
ClientID: githubOAuthConfig.ClientID,
ClientSecret: githubOAuthConfig.ClientSecret,
RedirectURL: githubOAuthConfig.RedirectURL,
Scopes: githubOAuthConfig.Scopes,
Endpoint: oauth2.Endpoint{
AuthURL: fmt.Sprintf("https://%s/login/oauth/authorize", o.github.Host),
TokenURL: fmt.Sprintf("https://%s/login/oauth/access_token", o.github.Host),
},
})
repos := cfg().AllRepos.List()
prStatusAgent := prstatus.NewDashboardAgent(
repos,
&githubOAuthConfig,
&o.github,
logrus.WithField("client", "pr-status"))
clientCreator := func(accessToken string) prstatus.GitHubClient {
return o.github.GitHubClientWithAccessToken(accessToken)
}
mux.Handle("/pr-data.js", handleNotCached(
prStatusAgent.HandlePrStatus(prStatusAgent, clientCreator)))
// Handles login request.
mux.Handle("/github-login", goa.HandleLogin(oauthClient, secure))
// Handles redirect from GitHub OAuth server.
mux.Handle("/github-login/redirect", goa.HandleRedirect(oauthClient, githuboauth.NewAuthenticatedUserIdentifier(&o.github), secure))
}
mux.Handle("/rerun", gziphandler.GzipHandler(handleRerun(prowJobClient, o.rerunCreatesJob, authCfgGetter, goa, githuboauth.NewAuthenticatedUserIdentifier(&o.github), githubClient, pluginAgent, logrus.WithField("handler", "/rerun"))))
// optionally inject http->https redirect handler when behind loadbalancer
if o.redirectHTTPTo != "" {
redirectMux := http.NewServeMux()
redirectMux.Handle("/", func(oldMux *http.ServeMux, host string) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
if r.Header.Get("x-forwarded-proto") == "http" {
redirectURL, err := url.Parse(r.URL.String())
if err != nil {
logrus.Errorf("Failed to parse URL: %s.", r.URL.String())
http.Error(w, "Failed to perform https redirect.", http.StatusInternalServerError)
return
}
redirectURL.Scheme = "https"
redirectURL.Host = host
http.Redirect(w, r, redirectURL.String(), http.StatusMovedPermanently)
} else {
oldMux.ServeHTTP(w, r)
}
}
}(mux, o.redirectHTTPTo))
mux = redirectMux
}
return mux
}
func initSpyglass(cfg config.Getter, o options, mux *http.ServeMux, ja *jobs.JobAgent, gitHubClient deckGitHubClient, gitClient git.ClientFactory) {
ctx := context.TODO()
opener, err := io.NewOpener(ctx, o.storage.GCSCredentialsFile, o.storage.S3CredentialsFile)
if err != nil {
logrus.WithError(err).Fatal("Error creating opener")
}
sg := spyglass.New(ctx, ja, cfg, opener, o.gcsCookieAuth)
sg.Start()
mux.Handle("/spyglass/static/", http.StripPrefix("/spyglass/static", staticHandlerFromDir(o.spyglassFilesLocation)))
mux.Handle("/spyglass/lens/", gziphandler.GzipHandler(http.StripPrefix("/spyglass/lens/", handleArtifactView(o, sg, cfg))))
mux.Handle("/view/", gziphandler.GzipHandler(handleRequestJobViews(sg, cfg, o, logrus.WithField("handler", "/view"))))
mux.Handle("/job-history/", gziphandler.GzipHandler(handleJobHistory(o, cfg, opener, logrus.WithField("handler", "/job-history"))))
mux.Handle("/pr-history/", gziphandler.GzipHandler(handlePRHistory(o, cfg, opener, gitHubClient, gitClient, logrus.WithField("handler", "/pr-history"))))
if err := initLocalLensHandler(cfg, o, sg); err != nil {
logrus.WithError(err).Fatal("Failed to initialize local lens handler")
}
}
func initLocalLensHandler(cfg config.Getter, o options, sg *spyglass.Spyglass) error {
var localLenses []common.LensWithConfiguration
for _, lfc := range cfg().Deck.Spyglass.Lenses {
if !strings.HasPrefix(strings.TrimLeft(lfc.RemoteConfig.Endpoint, "http://"), spyglassLocalLensListenerAddr) {
continue
}
lens, err := lenses.GetLens(lfc.Lens.Name)
if err != nil {
return fmt.Errorf("couldn't find local lens %q: %w", lfc.Lens.Name, err)
}
localLenses = append(localLenses, common.LensWithConfiguration{
Config: common.LensOpt{
LensResourcesDir: lenses.ResourceDirForLens(o.spyglassFilesLocation, lfc.Lens.Name),
LensName: lfc.Lens.Name,
LensTitle: lfc.RemoteConfig.Title,
},
Lens: lens,
})
}
lensServer, err := common.NewLensServer(spyglassLocalLensListenerAddr, sg.JobAgent, sg.StorageArtifactFetcher, sg.PodLogArtifactFetcher, cfg, localLenses)
if err != nil {
return fmt.Errorf("constructing local lens server: %w", err)
}
interrupts.ListenAndServe(lensServer, 5*time.Second)
return nil
}
func loadToken(file string) ([]byte, error) {
raw, err := ioutil.ReadFile(file)
if err != nil {
return []byte{}, err
}
return bytes.TrimSpace(raw), nil
}
// copy a http.Request
// see: https://go-review.googlesource.com/c/go/+/36483/3/src/net/http/server.go
func dupeRequest(original *http.Request) *http.Request {
r2 := new(http.Request)
*r2 = *original
r2.URL = new(url.URL)
*r2.URL = *original.URL
return r2
}
func handleCached(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// This looks ridiculous but actually no-cache means "revalidate" and
// "max-age=0" just means there is no time in which it can skip
// revalidation. We also need to set must-revalidate because no-cache
// doesn't imply must-revalidate when using the back button
// https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9.1
// TODO: consider setting a longer max-age
// setting it this way means the content is always revalidated
w.Header().Set("Cache-Control", "public, max-age=0, no-cache, must-revalidate")
next.ServeHTTP(w, r)
})
}
func setHeadersNoCaching(w http.ResponseWriter) {
// Note that we need to set both no-cache and no-store because only some
// browsers decided to (incorrectly) treat no-cache as "never store"
// IE "no-store". for good measure to cover older browsers we also set
// expires and pragma: https://stackoverflow.com/a/2068407
w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
w.Header().Set("Pragma", "no-cache")
w.Header().Set("Expires", "0")
}
func writeJSONResponse(w http.ResponseWriter, r *http.Request, d []byte) {
// If we have a "var" query, then write out "var value = {...};".
// Otherwise, just write out the JSON.
if v := r.URL.Query().Get("var"); v != "" {
w.Header().Set("Content-Type", "application/javascript")
fmt.Fprintf(w, "var %s = %s;", v, string(d))
} else {
w.Header().Set("Content-Type", "application/json")
fmt.Fprint(w, string(d))
}
}
func handleNotCached(next http.Handler) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
setHeadersNoCaching(w)
next.ServeHTTP(w, r)
}
}
func handleProwJobs(ja *jobs.JobAgent, log *logrus.Entry) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
setHeadersNoCaching(w)
jobs := ja.ProwJobs()
omit := r.URL.Query().Get("omit")
if set := sets.NewString(strings.Split(omit, ",")...); set.Len() > 0 {
for i := range jobs {
if set.Has(Annotations) {
jobs[i].Annotations = nil
}
if set.Has(Labels) {
jobs[i].Labels = nil
}
if set.Has(DecorationConfig) {
jobs[i].Spec.DecorationConfig = nil
}
if set.Has(PodSpec) {
// when we omit the podspec, we don't set it completely to nil
// instead, we set it to a new podspec that just has an empty container for each container that exists in the actual podspec
// this is so we can determine how many containers there are for a given prowjob without fetching all of the podspec details
// this is necessary for prow/cmd/deck/static/prow/prow.ts to determine whether the logIcon should link to a log endpoint or to spyglass
if jobs[i].Spec.PodSpec != nil {
emptyContainers := []coreapi.Container{}
for range jobs[i].Spec.PodSpec.Containers {
emptyContainers = append(emptyContainers, coreapi.Container{})
}
jobs[i].Spec.PodSpec = &coreapi.PodSpec{
Containers: emptyContainers,
}
}
}
}
}
jd, err := json.Marshal(struct {
Items []prowapi.ProwJob `json:"items"`
}{jobs})
if err != nil {
log.WithError(err).Error("Error marshaling jobs.")
jd = []byte("{}")
}
writeJSONResponse(w, r, jd)
}
}
func handleData(ja *jobs.JobAgent, log *logrus.Entry) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
setHeadersNoCaching(w)
jobs := ja.Jobs()
jd, err := json.Marshal(jobs)
if err != nil {
log.WithError(err).Error("Error marshaling jobs.")
jd = []byte("[]")
}
writeJSONResponse(w, r, jd)
}
}
// handleBadge handles requests to get a badge for one or more jobs
// The url must look like this, where `jobs` is a comma-separated
// list of globs:
//
// /badge.svg?jobs=<glob>[,<glob2>]
//
// Examples:
// - /badge.svg?jobs=pull-kubernetes-bazel-build
// - /badge.svg?jobs=pull-kubernetes-*
// - /badge.svg?jobs=pull-kubernetes-e2e*,pull-kubernetes-*,pull-kubernetes-integration-*
func handleBadge(ja *jobs.JobAgent) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
setHeadersNoCaching(w)
wantJobs := r.URL.Query().Get("jobs")
if wantJobs == "" {
http.Error(w, "missing jobs query parameter", http.StatusBadRequest)
return
}
w.Header().Set("Content-Type", "image/svg+xml")
allJobs := ja.ProwJobs()
_, _, svg := renderBadge(pickLatestJobs(allJobs, wantJobs))
w.Write(svg)
}
}
// handleJobHistory handles requests to get the history of a given job
// There is also a new format since we started supporting other storageProvider
// like s3 and not only GCS.
// The url must look like one of these for presubmits:
//
// - /job-history/<gcs-bucket-name>/pr-logs/directory/<job-name>
// - /job-history/<storage-provider>/<bucket-name>/pr-logs/directory/<job-name>
//
// Example:
// - /job-history/kubernetes-jenkins/pr-logs/directory/pull-test-infra-verify-gofmt
// - /job-history/gs/kubernetes-jenkins/pr-logs/directory/pull-test-infra-verify-gofmt
//
// For periodics or postsubmits, the url must look like one of these:
//
// - /job-history/<gcs-bucket-name>/logs/<job-name>
// - /job-history/<storage-provider>/<bucket-name>/logs/<job-name>
//
// Example:
// - /job-history/kubernetes-jenkins/logs/ci-kubernetes-e2e-prow-canary
// - /job-history/gs/kubernetes-jenkins/logs/ci-kubernetes-e2e-prow-canary
func handleJobHistory(o options, cfg config.Getter, opener io.Opener, log *logrus.Entry) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
setHeadersNoCaching(w)
tmpl, err := getJobHistory(r.Context(), r.URL, cfg, opener)
if err != nil {
msg := fmt.Sprintf("failed to get job history: %v", err)
if shouldLogHTTPErrors(err) {
log.WithField("url", r.URL.String()).Warn(msg)
}
http.Error(w, msg, httpStatusForError(err))
return
}
handleSimpleTemplate(o, cfg, "job-history.html", tmpl)(w, r)
}
}
// handlePRHistory handles requests to get the test history if a given PR
// The url must look like this:
//
// /pr-history?org=<org>&repo=<repo>&pr=<pr number>
func handlePRHistory(o options, cfg config.Getter, opener io.Opener, gitHubClient deckGitHubClient, gitClient git.ClientFactory, log *logrus.Entry) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
setHeadersNoCaching(w)
tmpl, err := getPRHistory(r.Context(), r.URL, cfg(), opener, gitHubClient, gitClient, o.github.Host)
if err != nil {
msg := fmt.Sprintf("failed to get PR history: %v", err)
log.WithField("url", r.URL.String()).Info(msg)
http.Error(w, msg, http.StatusInternalServerError)
return
}
handleSimpleTemplate(o, cfg, "pr-history.html", tmpl)(w, r)
}
}
// handleRequestJobViews handles requests to get all available artifact views for a given job.
// The url must specify a storage key type, such as "prowjob" or "gcs":
//
// /view/<key-type>/<key>
//
// Examples:
// - /view/gcs/kubernetes-jenkins/pr-logs/pull/test-infra/9557/pull-test-infra-verify-gofmt/15688/
// - /view/prowjob/echo-test/1046875594609922048
func handleRequestJobViews(sg *spyglass.Spyglass, cfg config.Getter, o options, log *logrus.Entry) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
start := time.Now()
setHeadersNoCaching(w)
src := strings.TrimPrefix(r.URL.Path, "/view/")
csrfToken := csrf.Token(r)
page, err := renderSpyglass(r.Context(), sg, cfg, src, o, csrfToken, log)
if err != nil {
msg := fmt.Sprintf("error rendering spyglass page: %v", err)
if shouldLogHTTPErrors(err) {
log.WithError(err).Error(msg)
}
http.Error(w, msg, httpStatusForError(err))
return
}
fmt.Fprint(w, page)
elapsed := time.Since(start)
log.WithFields(logrus.Fields{
"duration": elapsed.String(),
"endpoint": r.URL.Path,
"source": src,
}).Info("Loading view completed.")
}
}
// renderSpyglass returns a pre-rendered Spyglass page from the given source string
func renderSpyglass(ctx context.Context, sg *spyglass.Spyglass, cfg config.Getter, src string, o options, csrfToken string, log *logrus.Entry) (string, error) {
renderStart := time.Now()
src = strings.TrimSuffix(src, "/")
realPath, err := sg.ResolveSymlink(src)
if err != nil {
return "", fmt.Errorf("error when resolving real path %s: %v", src, err)
}
src = realPath
artifactNames, err := sg.ListArtifacts(ctx, src)
if err != nil {
return "", fmt.Errorf("error listing artifacts: %v", err)
}
if len(artifactNames) == 0 {
log.Infof("found no artifacts for %s", src)
}
regexCache := cfg().Deck.Spyglass.RegexCache
lensCache := map[int][]string{}
var lensIndexes []int
lensesLoop:
for i, lfc := range cfg().Deck.Spyglass.Lenses {
matches := sets.String{}
for _, re := range lfc.RequiredFiles {
found := false
for _, a := range artifactNames {
if regexCache[re].MatchString(a) {
matches.Insert(a)
found = true
}
}
if !found {
continue lensesLoop
}
}
for _, re := range lfc.OptionalFiles {
for _, a := range artifactNames {
if regexCache[re].MatchString(a) {
matches.Insert(a)
}
}