blob: d68287ed0def76a2a51589590f66e277d13c4a6b [file] [log] [blame]
/*
* Copyright 2022-present Open Networking Foundation
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package main
import (
"context"
"fmt"
"os"
"os/signal"
"sync"
"syscall"
"time"
"github.com/golang/protobuf/ptypes/empty"
"github.com/opencord/voltha-lib-go/v7/pkg/log"
"github.com/opencord/voltha-lib-go/v7/pkg/probe"
"github.com/opencord/voltha-lib-go/v7/pkg/version"
clients "github.com/opencord/voltha-northbound-bbf-adapter/internal/clients"
"github.com/opencord/voltha-northbound-bbf-adapter/internal/config"
)
//String for readiness probe services
const (
bbfAdapterService = "bbf-adapter-service"
)
type bbfAdapter struct {
conf *config.BBFAdapterConfig
volthaNbiClient *clients.VolthaNbiClient
oltAppClient *clients.OltAppClient
}
func newBbfAdapter(conf *config.BBFAdapterConfig) *bbfAdapter {
return &bbfAdapter{
conf: conf,
}
}
func (a *bbfAdapter) start(ctx context.Context, wg *sync.WaitGroup) {
var err error
//Connect to the voltha northbound api
a.volthaNbiClient = clients.NewVolthaNbiClient(a.conf.VolthaNbiEndpoint)
if err = a.volthaNbiClient.Connect(ctx, a.conf.TlsEnabled, a.conf.TlsVerify); err != nil {
logger.Fatalw(ctx, "failed-to-open-voltha-nbi-grpc-connection", log.Fields{"err": err})
} else {
probe.UpdateStatusFromContext(ctx, a.conf.VolthaNbiEndpoint, probe.ServiceStatusRunning)
}
//Check if the REST APIs of the olt app are reachable
a.oltAppClient = clients.NewOltAppClient(a.conf.OnosRestEndpoint, a.conf.OnosUser, a.conf.OnosPassword)
if err := a.oltAppClient.CheckConnection(ctx); err != nil {
logger.Fatalw(ctx, "failed-to-connect-to-onos-olt-app-api", log.Fields{"err": err})
} else {
probe.UpdateStatusFromContext(ctx, a.conf.OnosRestEndpoint, probe.ServiceStatusRunning)
}
//Run the main logic of the BBF adapter
//Set the service as running, making the adapter finally ready
probe.UpdateStatusFromContext(ctx, bbfAdapterService, probe.ServiceStatusRunning)
logger.Info(ctx, "bbf-adapter-ready")
loop:
for {
select {
case <-ctx.Done():
logger.Info(ctx, "stop-for-context-done")
break loop
case <-time.After(15 * time.Second):
//TODO: this is just to test functionality
//Make a request to voltha
devices, err := a.volthaNbiClient.Service.ListDevices(ctx, &empty.Empty{})
if err != nil {
logger.Errorw(ctx, "failed-to-list-devices", log.Fields{"err": err})
continue
}
logger.Debugw(ctx, "Got devices from VOLTHA", log.Fields{"devNum": len(devices.Items)})
//Make a request to Olt app
response, err := a.oltAppClient.GetStatus()
if err != nil {
logger.Errorw(ctx, "failed-to-get-status", log.Fields{
"err": err,
"reponse": response,
})
continue
} else {
logger.Debugw(ctx, "Got status from OltApp", log.Fields{"response": response})
}
logger.Warn(ctx, "BBF Adapter currently has no implemented logic.")
}
}
probe.UpdateStatusFromContext(ctx, bbfAdapterService, probe.ServiceStatusStopped)
wg.Done()
}
//Close all connections of the adapter
func (a *bbfAdapter) cleanup() {
a.volthaNbiClient.Close()
}
func printBanner() {
fmt.Println(" ____ ____ ______ _ _ ")
fmt.Println(" | _ \\| _ \\| ____| /\\ | | | | ")
fmt.Println(" | |_) | |_) | |__ / \\ __| | __ _ _ __ | |_ ___ _ __ ")
fmt.Println(" | _ <| _ <| __| / /\\ \\ / _` |/ _` | '_ \\| __/ _ \\ '__|")
fmt.Println(" | |_) | |_) | | / ____ \\ (_| | (_| | |_) | || __/ | ")
fmt.Println(" |____/|____/|_| /_/ \\_\\__,_|\\__,_| .__/ \\__\\___|_| ")
fmt.Println(" | | ")
fmt.Println(" |_| ")
}
func printVersion() {
fmt.Println("VOLTHA Northbound BBF Adapter")
fmt.Println(version.VersionInfo.String(" "))
}
func waitForExit(ctx context.Context) int {
signalChannel := make(chan os.Signal, 1)
signal.Notify(signalChannel,
syscall.SIGHUP,
syscall.SIGINT,
syscall.SIGTERM,
syscall.SIGQUIT)
exitChannel := make(chan int)
go func() {
s := <-signalChannel
switch s {
case syscall.SIGHUP,
syscall.SIGINT,
syscall.SIGTERM,
syscall.SIGQUIT:
logger.Infow(ctx, "closing-signal-received", log.Fields{"signal": s})
exitChannel <- 0
default:
logger.Infow(ctx, "unexpected-signal-received", log.Fields{"signal": s})
exitChannel <- 1
}
}()
code := <-exitChannel
return code
}
func main() {
ctx, cancelCtx := context.WithCancel(context.Background())
start := time.Now()
conf := config.LoadConfig(ctx)
//Logging
logLevel, err := log.StringToLogLevel(conf.LogLevel)
if err != nil {
logger.Fatalf(ctx, "Cannot setup logging, %s", err)
}
// Setup default logger - applies for packages that do not have specific logger set
if _, err := log.SetDefaultLogger(log.JSON, logLevel, log.Fields{}); err != nil {
logger.With(log.Fields{"error": err}).Fatal(ctx, "Cannot setup logging")
}
// Update all loggers (provisionned via init) with a common field
if err := log.UpdateAllLoggers(log.Fields{}); err != nil {
logger.With(log.Fields{"error": err}).Fatal(ctx, "Cannot setup logging")
}
log.SetAllLogLevel(logLevel)
defer func() {
err := log.CleanUp()
if err != nil {
logger.Errorw(context.Background(), "unable-to-flush-any-buffered-log-entries", log.Fields{"error": err})
}
}()
// Print version and exit
if conf.PrintVersion {
printVersion()
return
}
// Print banner if specified
if conf.PrintBanner {
printBanner()
}
logger.Infow(ctx, "config", log.Fields{"config": *conf})
p := &probe.Probe{}
go p.ListenAndServe(ctx, conf.ProbeAddress)
//Register all services that will need to be initialized before considering the adapter ready
probeCtx := context.WithValue(ctx, probe.ProbeContextKey, p)
p.RegisterService(
ctx,
bbfAdapterService,
conf.VolthaNbiEndpoint,
conf.OnosRestEndpoint,
)
closer, err := log.GetGlobalLFM().InitTracingAndLogCorrelation(conf.TraceEnabled, conf.TraceAgentAddress, conf.LogCorrelationEnabled)
if err != nil {
logger.Warnw(ctx, "unable-to-initialize-tracing-and-log-correlation-module", log.Fields{"error": err})
} else {
defer log.TerminateTracing(closer)
}
adapter := newBbfAdapter(conf)
//Run the adapter
wg := &sync.WaitGroup{}
wg.Add(1)
go adapter.start(probeCtx, wg)
defer adapter.cleanup()
//Wait a signal to stop execution
code := waitForExit(ctx)
logger.Infow(ctx, "received-a-closing-signal", log.Fields{"code": code})
//Stop everything that waits for the context to be done
cancelCtx()
//Wait for the adapter logic to stop
wg.Wait()
elapsed := time.Since(start)
logger.Infow(ctx, "run-time", log.Fields{"time": elapsed.Seconds()})
}