func checkForUpdates() {
checkTicker := time.Tick(checkFrequency)
for range checkTicker {
log.Println("Checking for updates..")
update, err := cr.GetUpdate(instanceID, appID, groupID, currentVersion)
if err != nil {
log.Printf("\t- No updates (error: %v)\n", err)
continue
}
log.Println("\t- Updates available!")
log.Println("\t- Downloading update package..")
cr.EventDownloadStarted(instanceID, appID, groupID)
downloadPackage(update.URL, update.Filename)
log.Println("\t- Update package downloaded")
cr.EventDownloadFinished(instanceID, appID, groupID)
log.Println("\t- Update completed successfully :)")
cr.EventUpdateSucceeded(instanceID, appID, groupID)
log.Println("\t- Restarting server using new package")
syscall.Kill(syscall.Getpid(), syscall.SIGUSR2)
break
}
}
func (u *Updater) reportSuccessfulUpdate() {
trackFile := u.getTrackFile(u.a.Version)
if _, err := os.Stat(trackFile); os.IsNotExist(err) {
return
}
if err := cr.EventUpdateSucceeded(u.a.InstanceID, u.a.AppID, u.a.GroupID); err != nil {
logger.Error("reportSuccessfulUpdate failed", "error", err)
return
}
logger.Info("update succesfully deployed", "version", u.a.Version)
if err := os.Remove(trackFile); err != nil {
logger.Error("Error removing tracking file", "version", u.a.Version, "error", err)
}
}