github.com/munnerz/test-infra@v0.0.0-20190108210205-ce3d181dc989/prow/external-plugins/cherrypicker/main.go (about)

     1  /*
     2  Copyright 2017 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package main
    18  
    19  import (
    20  	"flag"
    21  	"net/http"
    22  	"os"
    23  	"os/signal"
    24  	"strconv"
    25  	"syscall"
    26  
    27  	"github.com/sirupsen/logrus"
    28  
    29  	"k8s.io/test-infra/pkg/flagutil"
    30  	"k8s.io/test-infra/prow/config/secret"
    31  	prowflagutil "k8s.io/test-infra/prow/flagutil"
    32  	"k8s.io/test-infra/prow/pluginhelp/externalplugins"
    33  )
    34  
    35  type options struct {
    36  	port int
    37  
    38  	dryRun bool
    39  	github prowflagutil.GitHubOptions
    40  
    41  	webhookSecretFile string
    42  	prowAssignments   bool
    43  	allowAll          bool
    44  }
    45  
    46  func (o *options) Validate() error {
    47  	for _, group := range []flagutil.OptionGroup{&o.github} {
    48  		if err := group.Validate(o.dryRun); err != nil {
    49  			return err
    50  		}
    51  	}
    52  
    53  	return nil
    54  }
    55  
    56  func gatherOptions() options {
    57  	o := options{}
    58  	fs := flag.NewFlagSet(os.Args[0], flag.ExitOnError)
    59  	fs.IntVar(&o.port, "port", 8888, "Port to listen on.")
    60  	fs.BoolVar(&o.dryRun, "dry-run", true, "Dry run for testing. Uses API tokens but does not mutate.")
    61  	fs.StringVar(&o.webhookSecretFile, "hmac-secret-file", "/etc/webhook/hmac", "Path to the file containing the GitHub HMAC secret.")
    62  	fs.BoolVar(&o.prowAssignments, "use-prow-assignments", true, "Use prow commands to assign cherrypicked PRs.")
    63  	fs.BoolVar(&o.allowAll, "allow-all", false, "Allow anybody to use automated cherrypicks by skipping Github organization membership checks.")
    64  	for _, group := range []flagutil.OptionGroup{&o.github} {
    65  		group.AddFlags(fs)
    66  	}
    67  	fs.Parse(os.Args[1:])
    68  	return o
    69  }
    70  
    71  func main() {
    72  	o := gatherOptions()
    73  	if err := o.Validate(); err != nil {
    74  		logrus.Fatalf("Invalid options: %v", err)
    75  	}
    76  
    77  	logrus.SetFormatter(&logrus.JSONFormatter{})
    78  	// TODO: Use global option from the prow config.
    79  	logrus.SetLevel(logrus.DebugLevel)
    80  	log := logrus.StandardLogger().WithField("plugin", "cherrypick")
    81  
    82  	// Ignore SIGTERM so that we don't drop hooks when the pod is removed.
    83  	// We'll get SIGTERM first and then SIGKILL after our graceful termination
    84  	// deadline.
    85  	signal.Ignore(syscall.SIGTERM)
    86  
    87  	secretAgent := &secret.Agent{}
    88  	if err := secretAgent.Start([]string{o.github.TokenPath, o.webhookSecretFile}); err != nil {
    89  		logrus.WithError(err).Fatal("Error starting secrets agent.")
    90  	}
    91  
    92  	githubClient, err := o.github.GitHubClient(secretAgent, o.dryRun)
    93  	if err != nil {
    94  		logrus.WithError(err).Fatal("Error getting GitHub client.")
    95  	}
    96  	gitClient, err := o.github.GitClient(secretAgent, o.dryRun)
    97  	if err != nil {
    98  		logrus.WithError(err).Fatal("Error getting Git client.")
    99  	}
   100  	defer gitClient.Clean()
   101  
   102  	email, err := githubClient.Email()
   103  	if err != nil {
   104  		log.WithError(err).Fatal("Error getting bot e-mail.")
   105  	}
   106  
   107  	botName, err := githubClient.BotName()
   108  	if err != nil {
   109  		logrus.WithError(err).Fatal("Error getting bot name.")
   110  	}
   111  	repos, err := githubClient.GetRepos(botName, true)
   112  	if err != nil {
   113  		log.WithError(err).Fatal("Error listing bot repositories.")
   114  	}
   115  
   116  	server := &Server{
   117  		tokenGenerator: secretAgent.GetTokenGenerator(o.webhookSecretFile),
   118  		botName:        botName,
   119  		email:          email,
   120  
   121  		gc:  gitClient,
   122  		ghc: githubClient,
   123  		log: log,
   124  
   125  		prowAssignments: o.prowAssignments,
   126  		allowAll:        o.allowAll,
   127  
   128  		bare:     &http.Client{},
   129  		patchURL: "https://patch-diff.githubusercontent.com",
   130  
   131  		repos: repos,
   132  	}
   133  
   134  	http.Handle("/", server)
   135  	externalplugins.ServeExternalPluginHelp(http.DefaultServeMux, log, HelpProvider)
   136  	logrus.Fatal(http.ListenAndServe(":"+strconv.Itoa(o.port), nil))
   137  }