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main.go
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main.go
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// 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 main
import (
"context"
"fmt"
"log"
"os"
"github.com/spf13/cobra"
"github.com/spf13/viper"
_ "go.uber.org/automaxprocs"
"go.uber.org/zap"
"github.com/jaegertracing/jaeger/cmd/internal/docs"
"github.com/jaegertracing/jaeger/cmd/internal/env"
"github.com/jaegertracing/jaeger/cmd/internal/flags"
"github.com/jaegertracing/jaeger/cmd/internal/status"
"github.com/jaegertracing/jaeger/cmd/query/app"
"github.com/jaegertracing/jaeger/cmd/query/app/querysvc"
"github.com/jaegertracing/jaeger/pkg/bearertoken"
"github.com/jaegertracing/jaeger/pkg/config"
"github.com/jaegertracing/jaeger/pkg/jtracer"
"github.com/jaegertracing/jaeger/pkg/metrics"
"github.com/jaegertracing/jaeger/pkg/tenancy"
"github.com/jaegertracing/jaeger/pkg/version"
metricsPlugin "github.com/jaegertracing/jaeger/plugin/metrics"
"github.com/jaegertracing/jaeger/plugin/storage"
"github.com/jaegertracing/jaeger/ports"
metricsstoreMetrics "github.com/jaegertracing/jaeger/storage/metricsstore/metrics"
spanstoreMetrics "github.com/jaegertracing/jaeger/storage/spanstore/metrics"
)
func main() {
svc := flags.NewService(ports.QueryAdminHTTP)
storageFactory, err := storage.NewFactory(storage.FactoryConfigFromEnvAndCLI(os.Args, os.Stderr))
if err != nil {
log.Fatalf("Cannot initialize storage factory: %v", err)
}
fc := metricsPlugin.FactoryConfigFromEnv()
metricsReaderFactory, err := metricsPlugin.NewFactory(fc)
if err != nil {
log.Fatalf("Cannot initialize metrics factory: %v", err)
}
v := viper.New()
command := &cobra.Command{
Use: "jaeger-query",
Short: "Jaeger query service provides a Web UI and an API for accessing trace data.",
Long: `Jaeger query service provides a Web UI and an API for accessing trace data.`,
RunE: func(cmd *cobra.Command, args []string) error {
if err := svc.Start(v); err != nil {
return err
}
logger := svc.Logger // shortcut
baseFactory := svc.MetricsFactory.Namespace(metrics.NSOptions{Name: "jaeger"})
metricsFactory := baseFactory.Namespace(metrics.NSOptions{Name: "query"})
version.NewInfoMetrics(metricsFactory)
queryOpts, err := new(app.QueryOptions).InitFromViper(v, logger)
if err != nil {
logger.Fatal("Failed to configure query service", zap.Error(err))
}
jt := jtracer.NoOp()
if queryOpts.EnableTracing {
jt, err = jtracer.New("jaeger-query")
if err != nil {
logger.Fatal("Failed to create tracer", zap.Error(err))
}
}
// TODO: Need to figure out set enable/disable propagation on storage plugins.
v.Set(bearertoken.StoragePropagationKey, queryOpts.BearerTokenPropagation)
storageFactory.InitFromViper(v, logger)
if err := storageFactory.Initialize(baseFactory, logger); err != nil {
logger.Fatal("Failed to init storage factory", zap.Error(err))
}
spanReader, err := storageFactory.CreateSpanReader()
if err != nil {
logger.Fatal("Failed to create span reader", zap.Error(err))
}
spanReader = spanstoreMetrics.NewReadMetricsDecorator(spanReader, metricsFactory)
dependencyReader, err := storageFactory.CreateDependencyReader()
if err != nil {
logger.Fatal("Failed to create dependency reader", zap.Error(err))
}
metricsQueryService, err := createMetricsQueryService(metricsReaderFactory, v, logger, metricsFactory)
if err != nil {
logger.Fatal("Failed to create metrics query service", zap.Error(err))
}
queryServiceOptions := queryOpts.BuildQueryServiceOptions(storageFactory, logger)
queryService := querysvc.NewQueryService(
spanReader,
dependencyReader,
*queryServiceOptions)
tm := tenancy.NewManager(&queryOpts.Tenancy)
server, err := app.NewServer(svc.Logger, queryService, metricsQueryService, queryOpts, tm, jt)
if err != nil {
logger.Fatal("Failed to create server", zap.Error(err))
}
go func() {
for s := range server.HealthCheckStatus() {
svc.SetHealthCheckStatus(s)
}
}()
if err := server.Start(); err != nil {
logger.Fatal("Could not start servers", zap.Error(err))
}
svc.RunAndThen(func() {
server.Close()
if err := storageFactory.Close(); err != nil {
logger.Error("Failed to close storage factory", zap.Error(err))
}
if err = jt.Close(context.Background()); err != nil {
logger.Fatal("Error shutting down tracer provider", zap.Error(err))
}
})
return nil
},
}
command.AddCommand(version.Command())
command.AddCommand(env.Command())
command.AddCommand(docs.Command(v))
command.AddCommand(status.Command(v, ports.QueryAdminHTTP))
config.AddFlags(
v,
command,
svc.AddFlags,
storageFactory.AddFlags,
app.AddFlags,
metricsReaderFactory.AddFlags,
// add tenancy flags here to avoid panic caused by double registration in all-in-one
tenancy.AddFlags,
)
if err := command.Execute(); err != nil {
fmt.Println(err.Error())
os.Exit(1)
}
}
func createMetricsQueryService(
metricsReaderFactory *metricsPlugin.Factory,
v *viper.Viper,
logger *zap.Logger,
metricsReaderMetricsFactory metrics.Factory,
) (querysvc.MetricsQueryService, error) {
if err := metricsReaderFactory.Initialize(logger); err != nil {
return nil, fmt.Errorf("failed to init metrics reader factory: %w", err)
}
// Ensure default parameter values are loaded correctly.
metricsReaderFactory.InitFromViper(v, logger)
reader, err := metricsReaderFactory.CreateMetricsReader()
if err != nil {
return nil, fmt.Errorf("failed to create metrics reader: %w", err)
}
// Decorate the metrics reader with metrics instrumentation.
return metricsstoreMetrics.NewReadMetricsDecorator(reader, metricsReaderMetricsFactory), nil
}