Ejemplo n.º 1
0
func NewAgent() *Agent {
	backend, err := graph.NewMemoryBackend()
	if err != nil {
		panic(err)
	}

	g, err := graph.NewGraphFromConfig(backend)
	if err != nil {
		panic(err)
	}
	tm := topology.NewTIDMapper(g)
	tm.Start()

	hserver, err := shttp.NewServerFromConfig("agent")
	if err != nil {
		panic(err)
	}

	_, err = api.NewApi(hserver, nil)
	if err != nil {
		panic(err)
	}

	wsServer := shttp.NewWSServerFromConfig(hserver, "/ws")

	root := createRootNode(g)
	api.RegisterTopologyApi("agent", g, hserver, nil, nil)

	gserver := graph.NewServer(g, wsServer)

	return &Agent{
		Graph:       g,
		WSServer:    wsServer,
		GraphServer: gserver,
		Root:        root,
		HTTPServer:  hserver,
		TIDMapper:   tm,
	}
}
Ejemplo n.º 2
0
func NewServerFromConfig() (*Server, error) {
	embedEtcd := config.GetConfig().GetBool("etcd.embedded")

	backend, err := graph.BackendFromConfig()
	if err != nil {
		return nil, err
	}

	g, err := graph.NewGraphFromConfig(backend)
	if err != nil {
		return nil, err
	}

	httpServer, err := shttp.NewServerFromConfig("analyzer")
	if err != nil {
		return nil, err
	}

	wsServer := shttp.NewWSServerFromConfig(httpServer, "/ws")

	var etcdServer *etcd.EmbeddedEtcd
	if embedEtcd {
		if etcdServer, err = etcd.NewEmbeddedEtcdFromConfig(); err != nil {
			return nil, err
		}
	}

	etcdClient, err := etcd.NewEtcdClientFromConfig()
	if err != nil {
		return nil, err
	}

	analyzerUpdate := config.GetConfig().GetInt("analyzer.flowtable_update")
	analyzerExpire := config.GetConfig().GetInt("analyzer.flowtable_expire")
	agentRatio := config.GetConfig().GetFloat64("analyzer.flowtable_agent_ratio")
	if agentRatio == 0.0 {
		agentRatio = 0.5
	}

	agentUpdate := int64(float64(analyzerUpdate) * agentRatio)
	agentExpire := int64(float64(analyzerExpire) * agentRatio)

	if err := etcdClient.SetInt64("/agent/config/flowtable_update", agentUpdate); err != nil {
		return nil, err
	}

	if err := etcdClient.SetInt64("/agent/config/flowtable_expire", agentExpire); err != nil {
		return nil, err
	}

	apiServer, err := api.NewApi(httpServer, etcdClient.KeysApi)
	if err != nil {
		return nil, err
	}

	captureApiHandler := &api.CaptureApiHandler{
		BasicApiHandler: api.BasicApiHandler{
			ResourceHandler: &api.CaptureResourceHandler{},
			EtcdKeyAPI:      etcdClient.KeysApi,
		},
		Graph: g,
	}
	err = apiServer.RegisterApiHandler(captureApiHandler)
	if err != nil {
		return nil, err
	}

	alertApiHandler := &api.AlertApiHandler{
		BasicApiHandler: api.BasicApiHandler{
			ResourceHandler: &api.AlertResourceHandler{},
			EtcdKeyAPI:      etcdClient.KeysApi,
		},
	}
	err = apiServer.RegisterApiHandler(alertApiHandler)
	if err != nil {
		return nil, err
	}

	alertManager := alert.NewAlertManager(g, alertApiHandler)

	aserver := alert.NewServer(alertManager, wsServer)
	gserver := graph.NewServer(g, wsServer)

	gfe := mappings.NewGraphFlowEnhancer(g)
	ofe := mappings.NewOvsFlowEnhancer(g)

	pipeline := mappings.NewFlowMappingPipeline(gfe, ofe)

	tableClient := flow.NewTableClient(wsServer)

	server := &Server{
		HTTPServer:          httpServer,
		WSServer:            wsServer,
		GraphServer:         gserver,
		AlertServer:         aserver,
		FlowMappingPipeline: pipeline,
		TableClient:         tableClient,
		EmbeddedEtcd:        etcdServer,
		EtcdClient:          etcdClient,
	}
	server.SetStorageFromConfig()

	updateHandler := flow.NewFlowHandler(server.flowExpireUpdate, time.Second*time.Duration(analyzerUpdate))
	expireHandler := flow.NewFlowHandler(server.flowExpireUpdate, time.Second*time.Duration(analyzerExpire))
	flowtable := flow.NewTable(updateHandler, expireHandler)
	server.FlowTable = flowtable

	api.RegisterTopologyApi("analyzer", g, httpServer, tableClient, server.Storage)

	api.RegisterFlowApi("analyzer", flowtable, server.Storage, httpServer)

	return server, nil
}