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) Start() {
t := time.Tick(u.checkFrequency)
for range t {
update, err := cr.GetUpdate(u.a.InstanceID, u.a.AppID, u.a.GroupID, u.a.Version)
switch err {
case nil:
case cr.ErrNoUpdate:
logger.Debug("no update from CoreRoller")
continue
default:
logger.Warn("Getting update from CoreRoller", "appID", u.a.AppID, "groupID", u.a.GroupID, "instanceID", u.a.InstanceID, "error", err.Error())
continue
}
logger.Info("got update from coreroller", "version", update.Version)
if err := u.processUpdate(update); err != nil {
cr.EventUpdateFailed(u.a.InstanceID, u.a.AppID, u.a.GroupID)
continue
}
break
}
}