mirror of
https://github.com/mainflux/mainflux.git
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c0c72491ff
* Make Fatal return no value Signed-off-by: dusanb94 <dusan.borovcanin@mainflux.com> * Add Fatal test Signed-off-by: dusanb94 <dusan.borovcanin@mainflux.com> * Rename logger imports Signed-off-by: dusanb94 <dusan.borovcanin@mainflux.com> * Replace Fatal with Fatalf Signed-off-by: dusanb94 <dusan.borovcanin@mainflux.com> * Refactor Logger tests Signed-off-by: dusanb94 <dusan.borovcanin@mainflux.com> * Fix expected and actual order inversion Signed-off-by: dusanb94 <dusan.borovcanin@mainflux.com> * Update dependencies Signed-off-by: dusanb94 <dusan.borovcanin@mainflux.com> --------- Signed-off-by: dusanb94 <dusan.borovcanin@mainflux.com>
102 lines
3.3 KiB
Go
102 lines
3.3 KiB
Go
// Copyright (c) Mainflux
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// SPDX-License-Identifier: Apache-2.0
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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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influxdata "github.com/influxdata/influxdb/client/v2"
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"github.com/mainflux/mainflux/consumers"
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"github.com/mainflux/mainflux/consumers/writers/api"
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"github.com/mainflux/mainflux/consumers/writers/influxdb"
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"github.com/mainflux/mainflux/internal"
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influxDBClient "github.com/mainflux/mainflux/internal/clients/influxdb"
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"github.com/mainflux/mainflux/internal/env"
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"github.com/mainflux/mainflux/internal/server"
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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/messaging/brokers"
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"golang.org/x/sync/errgroup"
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)
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const (
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svcName = "influxdb-writer"
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envPrefix = "MF_INFLUX_WRITER_"
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envPrefixHttp = "MF_INFLUX_WRITER_HTTP_"
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envPrefixInfluxdb = "MF_INFLUXDB_"
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defSvcHttpPort = "8180"
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)
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type config struct {
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LogLevel string `env:"MF_INFLUX_WRITER_LOG_LEVEL" envDefault:"info"`
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ConfigPath string `env:"MF_INFLUX_WRITER_CONFIG_PATH" envDefault:"/config.toml"`
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BrokerURL string `env:"MF_BROKER_URL" envDefault:"nats://localhost:4222"`
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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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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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pubSub, err := brokers.NewPubSub(cfg.BrokerURL, "", logger)
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if err != nil {
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logger.Fatal(fmt.Sprintf("failed to connect to message broker: %s", err))
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}
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defer pubSub.Close()
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influxDBConfig := influxDBClient.Config{}
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if err := env.Parse(&influxDBConfig, env.Options{Prefix: envPrefixInfluxdb}); err != nil {
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logger.Fatal(fmt.Sprintf("failed to load InfluxDB client configuration from environment variable : %s", err))
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}
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client, err := influxDBClient.Connect(influxDBConfig)
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if err != nil {
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logger.Fatal(fmt.Sprintf("failed to connect to InfluxDB : %s", err))
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}
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defer client.Close()
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repo := newService(client, influxDBConfig.DbName, logger)
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if err := consumers.Start(svcName, pubSub, repo, cfg.ConfigPath, logger); err != nil {
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logger.Fatal(fmt.Sprintf("failed to start InfluxDB writer: %s", err))
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}
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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 HTTP server configuration : %s", svcName, err))
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}
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hs := httpserver.New(ctx, cancel, svcName, httpServerConfig, api.MakeHandler(svcName), logger)
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g.Go(func() error {
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return hs.Start()
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})
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g.Go(func() error {
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return server.StopSignalHandler(ctx, cancel, logger, svcName, hs)
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})
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if err := g.Wait(); err != nil {
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logger.Error(fmt.Sprintf("InfluxDB reader service terminated: %s", err))
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}
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}
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func newService(client influxdata.Client, dbName string, logger mflog.Logger) consumers.Consumer {
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repo := influxdb.New(client, dbName)
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repo = api.LoggingMiddleware(repo, logger)
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counter, latency := internal.MakeMetrics("influxdb", "message_writer")
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repo = api.MetricsMiddleware(repo, counter, latency)
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return repo
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}
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