You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

123 lines
3.9 KiB

// Copyright (c) 2019 The Jaeger Authors.
// Copyright (c) 2017 Uber Technologies, Inc.
//
// 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 cmd
import (
"os"
"github.com/spf13/cobra"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
"github.com/jaegertracing/jaeger/examples/hotrod/services/config"
"github.com/jaegertracing/jaeger/internal/jaegerclientenv2otel"
"github.com/jaegertracing/jaeger/internal/metrics/expvar"
"github.com/jaegertracing/jaeger/internal/metrics/prometheus"
"github.com/jaegertracing/jaeger/pkg/metrics"
)
var (
logger *zap.Logger
metricsFactory metrics.Factory
)
// RootCmd represents the base command when called without any subcommands
var RootCmd = &cobra.Command{
Use: "examples-hotrod",
Short: "HotR.O.D. - A tracing demo application",
Long: `HotR.O.D. - A tracing demo application.`,
}
// Execute adds all child commands to the root command sets flags appropriately.
// This is called by main.main(). It only needs to happen once to the rootCmd.
func Execute() {
if err := RootCmd.Execute(); err != nil {
logger.Fatal("We bowled a googly", zap.Error(err))
os.Exit(-1)
}
}
func init() {
addFlags(RootCmd)
cobra.OnInitialize(onInitialize)
}
// onInitialize is called before the command is executed.
func onInitialize() {
zapOptions := []zap.Option{
zap.AddStacktrace(zapcore.FatalLevel),
zap.AddCallerSkip(1),
}
if !verbose {
zapOptions = append(zapOptions,
zap.IncreaseLevel(zap.LevelEnablerFunc(func(l zapcore.Level) bool { return l != zapcore.DebugLevel })),
)
}
logger, _ = zap.NewDevelopment(zapOptions...)
jaegerclientenv2otel.MapJaegerToOtelEnvVars(logger)
switch metricsBackend {
case "expvar":
metricsFactory = expvar.NewFactory(10) // 10 buckets for histograms
logger.Info("*** Using expvar as metrics backend " + expvarDepr)
case "prometheus":
metricsFactory = prometheus.New().Namespace(metrics.NSOptions{Name: "hotrod", Tags: nil})
logger.Info("Using Prometheus as metrics backend")
default:
logger.Fatal("unsupported metrics backend " + metricsBackend)
}
if config.MySQLGetDelay != fixDBConnDelay {
logger.Info("fix: overriding MySQL query delay", zap.Duration("old", config.MySQLGetDelay), zap.Duration("new", fixDBConnDelay))
config.MySQLGetDelay = fixDBConnDelay
}
if fixDBConnDisableMutex {
logger.Info("fix: disabling db connection mutex")
config.MySQLMutexDisabled = true
}
if config.RouteWorkerPoolSize != fixRouteWorkerPoolSize {
logger.Info("fix: overriding route worker pool size", zap.Int("old", config.RouteWorkerPoolSize), zap.Int("new", fixRouteWorkerPoolSize))
config.RouteWorkerPoolSize = fixRouteWorkerPoolSize
}
if customerPort != 8081 {
logger.Info("changing customer service port", zap.Int("old", 8081), zap.Int("new", customerPort))
}
if driverPort != 8082 {
logger.Info("changing driver service port", zap.Int("old", 8082), zap.Int("new", driverPort))
}
if frontendPort != 8080 {
logger.Info("changing frontend service port", zap.Int("old", 8080), zap.Int("new", frontendPort))
}
if routePort != 8083 {
logger.Info("changing route service port", zap.Int("old", 8083), zap.Int("new", routePort))
}
if basepath != "" {
logger.Info("changing basepath for frontend", zap.String("old", "/"), zap.String("new", basepath))
}
}
func logError(logger *zap.Logger, err error) error {
if err != nil {
logger.Error("Error running command", zap.Error(err))
}
return err
}