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123 lines
3.9 KiB
123 lines
3.9 KiB
7 months ago
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// Copyright (c) 2019 The Jaeger Authors.
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// Copyright (c) 2017 Uber Technologies, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cmd
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import (
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"os"
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"github.com/spf13/cobra"
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"go.uber.org/zap"
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"go.uber.org/zap/zapcore"
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"github.com/jaegertracing/jaeger/examples/hotrod/services/config"
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"github.com/jaegertracing/jaeger/internal/jaegerclientenv2otel"
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"github.com/jaegertracing/jaeger/internal/metrics/expvar"
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"github.com/jaegertracing/jaeger/internal/metrics/prometheus"
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"github.com/jaegertracing/jaeger/pkg/metrics"
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)
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var (
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logger *zap.Logger
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metricsFactory metrics.Factory
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)
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// RootCmd represents the base command when called without any subcommands
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var RootCmd = &cobra.Command{
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Use: "examples-hotrod",
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Short: "HotR.O.D. - A tracing demo application",
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Long: `HotR.O.D. - A tracing demo application.`,
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}
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// Execute adds all child commands to the root command sets flags appropriately.
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// This is called by main.main(). It only needs to happen once to the rootCmd.
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func Execute() {
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if err := RootCmd.Execute(); err != nil {
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logger.Fatal("We bowled a googly", zap.Error(err))
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os.Exit(-1)
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}
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}
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func init() {
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addFlags(RootCmd)
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cobra.OnInitialize(onInitialize)
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}
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// onInitialize is called before the command is executed.
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func onInitialize() {
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zapOptions := []zap.Option{
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zap.AddStacktrace(zapcore.FatalLevel),
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zap.AddCallerSkip(1),
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}
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if !verbose {
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zapOptions = append(zapOptions,
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zap.IncreaseLevel(zap.LevelEnablerFunc(func(l zapcore.Level) bool { return l != zapcore.DebugLevel })),
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)
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}
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logger, _ = zap.NewDevelopment(zapOptions...)
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jaegerclientenv2otel.MapJaegerToOtelEnvVars(logger)
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switch metricsBackend {
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case "expvar":
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metricsFactory = expvar.NewFactory(10) // 10 buckets for histograms
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logger.Info("*** Using expvar as metrics backend " + expvarDepr)
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case "prometheus":
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metricsFactory = prometheus.New().Namespace(metrics.NSOptions{Name: "hotrod", Tags: nil})
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logger.Info("Using Prometheus as metrics backend")
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default:
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logger.Fatal("unsupported metrics backend " + metricsBackend)
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}
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if config.MySQLGetDelay != fixDBConnDelay {
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logger.Info("fix: overriding MySQL query delay", zap.Duration("old", config.MySQLGetDelay), zap.Duration("new", fixDBConnDelay))
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config.MySQLGetDelay = fixDBConnDelay
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}
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if fixDBConnDisableMutex {
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logger.Info("fix: disabling db connection mutex")
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config.MySQLMutexDisabled = true
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}
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if config.RouteWorkerPoolSize != fixRouteWorkerPoolSize {
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logger.Info("fix: overriding route worker pool size", zap.Int("old", config.RouteWorkerPoolSize), zap.Int("new", fixRouteWorkerPoolSize))
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config.RouteWorkerPoolSize = fixRouteWorkerPoolSize
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}
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if customerPort != 8081 {
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logger.Info("changing customer service port", zap.Int("old", 8081), zap.Int("new", customerPort))
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}
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if driverPort != 8082 {
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logger.Info("changing driver service port", zap.Int("old", 8082), zap.Int("new", driverPort))
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}
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if frontendPort != 8080 {
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logger.Info("changing frontend service port", zap.Int("old", 8080), zap.Int("new", frontendPort))
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}
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if routePort != 8083 {
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logger.Info("changing route service port", zap.Int("old", 8083), zap.Int("new", routePort))
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}
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if basepath != "" {
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logger.Info("changing basepath for frontend", zap.String("old", "/"), zap.String("new", basepath))
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}
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}
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func logError(logger *zap.Logger, err error) error {
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if err != nil {
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logger.Error("Error running command", zap.Error(err))
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}
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return err
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}
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