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,
}
}
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
}