func (a *MachineAgent) maybeStopMongo(ver mongo.Version, isMaster bool) error {
if !a.mongoInitialized {
return nil
}
conf := a.AgentConfigWriter.CurrentConfig()
v := conf.MongoVersion()
logger.Errorf("Got version change %v", ver)
// TODO(perrito666) replace with "read-only" mode for environment when
// it is available.
if ver.NewerThan(v) > 0 {
err := a.AgentConfigWriter.ChangeConfig(func(config agent.ConfigSetter) error {
config.SetMongoVersion(mongo.MongoUpgrade)
return nil
})
if err != nil {
return err
}
}
return nil
}
