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pagerduty2slack.go
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pagerduty2slack.go
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package main
import (
"flag"
"fmt"
"os"
"os/signal"
"syscall"
"time"
"github.com/robfig/cron/v3"
log "github.com/sirupsen/logrus"
pagerdutyclient "github.com/sapcc/pagerduty2slack/internal/clients/pagerduty"
slackclient "github.com/sapcc/pagerduty2slack/internal/clients/slack"
"github.com/sapcc/pagerduty2slack/internal/config"
"github.com/sapcc/pagerduty2slack/internal/jobs"
)
var opts config.Config
func printUsage() {
var CommandLine = flag.NewFlagSet(os.Args[0], flag.ExitOnError)
_, _ = fmt.Fprintf(CommandLine.Output(), "\n\nUsage of %s:\n", os.Args[0])
flag.PrintDefaults()
}
func main() {
flag.StringVar(&opts.ConfigFilePath, "config", "./config.yml", "Config file path including file name.")
flag.BoolVar(&opts.Global.Write, "write", false, "[true|false] write changes? Overrides config setting!")
flag.Parse()
cfg, err := config.NewConfig(opts.ConfigFilePath)
if err != nil {
printUsage()
log.Fatal(err)
}
initLogging(cfg.Global.LogLevel)
slackClient, err := slackclient.NewClient(&cfg.Slack)
if err != nil {
log.Fatal(err)
}
pdClient, err := pagerdutyclient.NewClient(&cfg.Pagerduty)
if err != nil {
log.Fatal(err)
}
c := cron.New(cron.WithLocation(time.UTC))
_, err = c.AddFunc("0 * * * *", func() {
if err := slackClient.LoadMasterData(); err != nil {
log.Warnf("loading slack masterdata failed: %s", err.Error())
}
})
if err != nil {
log.Fatalf("adding Slack masterdata loading to cron failed: %s", err.Error())
}
//member sync jobs
for _, s := range cfg.Jobs.ScheduleSync {
job, err := jobs.NewScheduleSyncJob(s, !cfg.Global.Write, pdClient, slackClient)
if err != nil {
log.Fatalf("creating job to sync '%s' failed: %s", s.ObjectsToSync.SlackGroupHandle, err.Error())
}
_, err = c.AddFunc(s.CrontabExpressionForRepetition, func() {
err := job.Run()
if err != nil {
log.Warnf("schedule_sync failed: %s", err.Error())
}
if err = jobs.PostInfoMessage(slackClient, job); err != nil {
log.Warnf("posting update to slack failed: %s", err.Error())
}
})
if err != nil {
log.Fatalf("failed to create job: %s", err.Error())
}
}
//group sync jobs
for _, t := range cfg.Jobs.TeamSync {
job, err := jobs.NewTeamSyncJob(t, !cfg.Global.Write, pdClient, slackClient)
if err != nil {
log.Fatalf("creating job to sync '%s' failed: %s", t.ObjectsToSync.SlackGroupHandle, err.Error())
}
_, err = c.AddFunc(t.CrontabExpressionForRepetition, func() {
err := job.Run()
if err != nil {
log.Warnf("adding group members to slack failed: %s", err.Error())
return
}
if err = jobs.PostInfoMessage(slackClient, job); err != nil {
log.Warnf("posting update to slack failed: %s", err.Error())
}
})
if err != nil {
log.Fatalf("failed to schedule job: %s", err)
}
}
go c.Start()
defer c.Stop()
time.Sleep(2000)
if cfg.Global.RunAtStart {
for rc, e := range c.Entries() {
if rc == 0 {
continue
}
log.Debugf("job %d: next run %s; valid: %v", e.ID, e.Next, e.Valid())
if e.Valid() {
c.Entry(e.ID).WrappedJob.Run()
}
}
sig := make(chan os.Signal, 1)
signal.Notify(sig, syscall.SIGHUP, syscall.SIGINT, syscall.SIGTERM)
s := <-sig
log.Infof("received %v, shutting down", s.String())
} else {
log.Info("cfg.Global.RunAtStart is set to: ", cfg.Global.RunAtStart)
}
}
// initLogging configurates the logger
func initLogging(logLevel string) {
log.SetFormatter(&log.JSONFormatter{})
log.SetFormatter(&log.TextFormatter{
DisableColors: false,
FullTimestamp: true,
})
log.SetReportCaller(false)
level, err := log.ParseLevel(logLevel)
if err != nil {
log.Info("parsing log level failed, defaulting to info")
level = log.InfoLevel
}
log.SetLevel(level)
}