223 lines
8.3 KiB
Go
223 lines
8.3 KiB
Go
// Copyright (c) Mainflux
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// SPDX-License-Identifier: Apache-2.0
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// Package main contains things main function to start the things service.
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package main
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import (
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"context"
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"fmt"
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"log"
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"os"
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"time"
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"github.com/go-redis/redis/v8"
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"github.com/go-zoo/bone"
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"github.com/jmoiron/sqlx"
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chclient "github.com/mainflux/callhome/pkg/client"
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"github.com/mainflux/mainflux"
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"github.com/mainflux/mainflux/internal"
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authClient "github.com/mainflux/mainflux/internal/clients/grpc/auth"
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jaegerClient "github.com/mainflux/mainflux/internal/clients/jaeger"
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pgClient "github.com/mainflux/mainflux/internal/clients/postgres"
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redisClient "github.com/mainflux/mainflux/internal/clients/redis"
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"github.com/mainflux/mainflux/internal/env"
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"github.com/mainflux/mainflux/internal/postgres"
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"github.com/mainflux/mainflux/internal/server"
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grpcserver "github.com/mainflux/mainflux/internal/server/grpc"
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httpserver "github.com/mainflux/mainflux/internal/server/http"
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mflog "github.com/mainflux/mainflux/logger"
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"github.com/mainflux/mainflux/pkg/uuid"
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"github.com/mainflux/mainflux/things/clients"
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capi "github.com/mainflux/mainflux/things/clients/api"
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cpostgres "github.com/mainflux/mainflux/things/clients/postgres"
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redisthcache "github.com/mainflux/mainflux/things/clients/redis"
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localusers "github.com/mainflux/mainflux/things/clients/standalone"
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ctracing "github.com/mainflux/mainflux/things/clients/tracing"
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"github.com/mainflux/mainflux/things/groups"
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gapi "github.com/mainflux/mainflux/things/groups/api"
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gpostgres "github.com/mainflux/mainflux/things/groups/postgres"
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redischcache "github.com/mainflux/mainflux/things/groups/redis"
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gtracing "github.com/mainflux/mainflux/things/groups/tracing"
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tpolicies "github.com/mainflux/mainflux/things/policies"
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papi "github.com/mainflux/mainflux/things/policies/api"
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grpcapi "github.com/mainflux/mainflux/things/policies/api/grpc"
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httpapi "github.com/mainflux/mainflux/things/policies/api/http"
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ppostgres "github.com/mainflux/mainflux/things/policies/postgres"
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redispcache "github.com/mainflux/mainflux/things/policies/redis"
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ppracing "github.com/mainflux/mainflux/things/policies/tracing"
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thingsPg "github.com/mainflux/mainflux/things/postgres"
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upolicies "github.com/mainflux/mainflux/users/policies"
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"go.opentelemetry.io/otel/trace"
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"golang.org/x/sync/errgroup"
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"google.golang.org/grpc"
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"google.golang.org/grpc/reflection"
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)
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const (
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svcName = "things"
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envPrefix = "MF_THINGS_"
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envPrefixCache = "MF_THINGS_CACHE_"
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envPrefixES = "MF_THINGS_ES_"
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envPrefixHttp = "MF_THINGS_HTTP_"
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envPrefixAuthGrpc = "MF_THINGS_AUTH_GRPC_"
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defDB = "things"
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defSvcHttpPort = "9000"
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defSvcAuthGrpcPort = "7000"
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)
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type config struct {
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LogLevel string `env:"MF_THINGS_LOG_LEVEL" envDefault:"info"`
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StandaloneID string `env:"MF_THINGS_STANDALONE_ID" envDefault:""`
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StandaloneToken string `env:"MF_THINGS_STANDALONE_TOKEN" envDefault:""`
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JaegerURL string `env:"MF_JAEGER_URL" envDefault:"http://jaeger:14268/api/traces"`
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CacheKeyDuration string `env:"MF_THINGS_CACHE_KEY_DURATION" envDefault:"10m"`
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SendTelemetry bool `env:"MF_SEND_TELEMETRY" envDefault:"true"`
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}
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func main() {
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ctx, cancel := context.WithCancel(context.Background())
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g, ctx := errgroup.WithContext(ctx)
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// Create new things configuration
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cfg := config{}
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if err := env.Parse(&cfg); err != nil {
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log.Fatalf("failed to load %s configuration : %s", svcName, err)
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}
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logger, err := mflog.New(os.Stdout, cfg.LogLevel)
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if err != nil {
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log.Fatalf("failed to init logger: %s", err)
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}
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// Create new database for things
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dbConfig := pgClient.Config{Name: defDB}
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db, err := pgClient.SetupWithConfig(envPrefix, *thingsPg.Migration(), dbConfig)
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if err != nil {
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logger.Fatal(err.Error())
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}
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defer db.Close()
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tp, err := jaegerClient.NewProvider(svcName, cfg.JaegerURL)
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if err != nil {
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logger.Error(fmt.Sprintf("Failed to init Jaeger: %s", err))
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}
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defer func() {
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if err := tp.Shutdown(ctx); err != nil {
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logger.Error(fmt.Sprintf("Error shutting down tracer provider: %v", err))
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}
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}()
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tracer := tp.Tracer(svcName)
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// Setup new redis cache client
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cacheClient, err := redisClient.Setup(envPrefixCache)
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if err != nil {
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logger.Fatal(err.Error())
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}
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defer cacheClient.Close()
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// Setup new redis event store client
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esClient, err := redisClient.Setup(envPrefixES)
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if err != nil {
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logger.Fatal(err.Error())
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}
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defer esClient.Close()
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var auth upolicies.AuthServiceClient
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switch cfg.StandaloneID != "" && cfg.StandaloneToken != "" {
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case true:
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auth = localusers.NewAuthService(cfg.StandaloneID, cfg.StandaloneToken)
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logger.Info("Using standalone auth service")
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default:
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authServiceClient, authHandler, err := authClient.Setup(envPrefix, cfg.JaegerURL, svcName)
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if err != nil {
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logger.Fatal(err.Error())
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}
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defer authHandler.Close()
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auth = authServiceClient
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logger.Info("Successfully connected to auth grpc server " + authHandler.Secure())
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}
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csvc, gsvc, psvc := newService(db, auth, cacheClient, esClient, cfg.CacheKeyDuration, tracer, logger)
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httpServerConfig := server.Config{Port: defSvcHttpPort}
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if err := env.Parse(&httpServerConfig, env.Options{Prefix: envPrefixHttp, AltPrefix: envPrefix}); err != nil {
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logger.Fatal(fmt.Sprintf("failed to load %s gRPC server configuration : %s", svcName, err))
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}
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mux := bone.New()
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hsp := httpserver.New(ctx, cancel, "things-policies", httpServerConfig, httpapi.MakeHandler(csvc, psvc, mux, logger), logger)
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hsc := httpserver.New(ctx, cancel, "things-clients", httpServerConfig, capi.MakeHandler(csvc, mux, logger), logger)
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hsg := httpserver.New(ctx, cancel, "things-groups", httpServerConfig, gapi.MakeHandler(gsvc, mux, logger), logger)
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registerThingsServiceServer := func(srv *grpc.Server) {
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reflection.Register(srv)
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tpolicies.RegisterThingsServiceServer(srv, grpcapi.NewServer(csvc, psvc))
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}
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grpcServerConfig := server.Config{Port: defSvcAuthGrpcPort}
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if err := env.Parse(&grpcServerConfig, env.Options{Prefix: envPrefixAuthGrpc, AltPrefix: envPrefix}); err != nil {
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logger.Fatal(fmt.Sprintf("failed to load %s gRPC server configuration : %s", svcName, err))
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}
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gs := grpcserver.New(ctx, cancel, svcName, grpcServerConfig, registerThingsServiceServer, logger)
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if cfg.SendTelemetry {
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chc := chclient.New(svcName, mainflux.Version, logger, cancel)
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go chc.CallHome(ctx)
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}
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// Start all servers
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g.Go(func() error {
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return hsp.Start()
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})
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g.Go(func() error {
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return gs.Start()
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})
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g.Go(func() error {
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return server.StopSignalHandler(ctx, cancel, logger, svcName, hsc, hsg, hsp, gs)
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})
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if err := g.Wait(); err != nil {
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logger.Error(fmt.Sprintf("%s service terminated: %s", svcName, err))
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}
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}
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func newService(db *sqlx.DB, auth upolicies.AuthServiceClient, cacheClient *redis.Client, esClient *redis.Client, keyDuration string, tracer trace.Tracer, logger mflog.Logger) (clients.Service, groups.Service, tpolicies.Service) {
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database := postgres.NewDatabase(db, tracer)
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cRepo := cpostgres.NewRepository(database)
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gRepo := gpostgres.NewRepository(database)
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pRepo := ppostgres.NewRepository(database)
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idp := uuid.New()
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kDuration, err := time.ParseDuration(keyDuration)
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if err != nil {
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logger.Error(fmt.Sprintf("failed to parse cache key duration: %s", err.Error()))
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}
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policyCache := redispcache.NewCache(cacheClient, kDuration)
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thingCache := redisthcache.NewCache(cacheClient, kDuration)
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psvc := tpolicies.NewService(auth, pRepo, policyCache, idp)
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csvc := clients.NewService(auth, psvc, cRepo, gRepo, thingCache, idp)
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gsvc := groups.NewService(auth, psvc, gRepo, idp)
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csvc = redisthcache.NewEventStoreMiddleware(csvc, esClient)
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gsvc = redischcache.NewEventStoreMiddleware(gsvc, esClient)
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psvc = redispcache.NewEventStoreMiddleware(psvc, esClient)
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csvc = ctracing.New(csvc, tracer)
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csvc = capi.LoggingMiddleware(csvc, logger)
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counter, latency := internal.MakeMetrics(svcName, "api")
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csvc = capi.MetricsMiddleware(csvc, counter, latency)
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gsvc = gtracing.New(gsvc, tracer)
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gsvc = gapi.LoggingMiddleware(gsvc, logger)
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counter, latency = internal.MakeMetrics(fmt.Sprintf("%s_groups", svcName), "api")
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gsvc = gapi.MetricsMiddleware(gsvc, counter, latency)
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psvc = ppracing.New(psvc, tracer)
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psvc = papi.LoggingMiddleware(psvc, logger)
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counter, latency = internal.MakeMetrics(fmt.Sprintf("%s_policies", svcName), "api")
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psvc = papi.MetricsMiddleware(psvc, counter, latency)
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return csvc, gsvc, psvc
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}
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