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main.go
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main.go
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// 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 (
"fmt"
"net"
"net/http"
"runtime"
"strconv"
"github.com/gorilla/mux"
"github.com/spf13/cobra"
"github.com/spf13/viper"
jaegerClientConfig "github.com/uber/jaeger-client-go/config"
"github.com/uber/jaeger-lib/metrics"
"github.com/uber/jaeger-lib/metrics/go-kit"
"github.com/uber/jaeger-lib/metrics/go-kit/expvar"
"github.com/uber/tchannel-go"
"github.com/uber/tchannel-go/thrift"
"go.uber.org/zap"
agentApp "github.com/uber/jaeger/cmd/agent/app"
basic "github.com/uber/jaeger/cmd/builder"
collectorApp "github.com/uber/jaeger/cmd/collector/app"
collector "github.com/uber/jaeger/cmd/collector/app/builder"
"github.com/uber/jaeger/cmd/collector/app/zipkin"
"github.com/uber/jaeger/cmd/flags"
queryApp "github.com/uber/jaeger/cmd/query/app"
query "github.com/uber/jaeger/cmd/query/app/builder"
"github.com/uber/jaeger/pkg/config"
pMetrics "github.com/uber/jaeger/pkg/metrics"
"github.com/uber/jaeger/pkg/recoveryhandler"
"github.com/uber/jaeger/storage/spanstore/memory"
jc "github.com/uber/jaeger/thrift-gen/jaeger"
zc "github.com/uber/jaeger/thrift-gen/zipkincore"
)
// standalone/main is a standalone full-stack jaeger backend, backed by a memory store
func main() {
logger, _ := zap.NewProduction()
v := viper.New()
command := &cobra.Command{
Use: "jaeger-standalone",
Short: "Jaeger all-in-one distribution with agent, collector and query in one process.",
Long: `Jaeger all-in-one distribution with agent, collector and query. Use with caution this version
uses only in-memory database.`,
RunE: func(cmd *cobra.Command, args []string) error {
runtime.GOMAXPROCS(runtime.NumCPU())
cOpts := new(collector.CollectorOptions).InitFromViper(v)
sFlags := new(flags.SharedFlags).InitFromViper(v)
qOpts := new(query.QueryOptions).InitFromViper(v)
metricsFactory := xkit.Wrap("jaeger-standalone", expvar.NewFactory(10))
memStore := memory.NewStore()
builder := &agentApp.Builder{}
builder.InitFromViper(v)
startAgent(builder, cOpts, logger, metricsFactory)
startCollector(cOpts, sFlags, logger, metricsFactory, memStore)
startQuery(qOpts, sFlags, logger, metricsFactory, memStore)
select {}
},
}
config.AddFlags(
v,
command,
flags.AddFlags,
collector.AddFlags,
query.AddFlags,
agentApp.AddFlags,
pMetrics.AddFlags,
)
if err := command.Execute(); err != nil {
logger.Fatal("standalone command failed", zap.Error(err))
}
}
func startAgent(
b *agentApp.Builder,
cOpts *collector.CollectorOptions,
logger *zap.Logger,
baseFactory metrics.Factory,
) {
metricsFactory := baseFactory.Namespace("jaeger-agent", nil)
if len(b.CollectorHostPorts) == 0 {
b.CollectorHostPorts = append(b.CollectorHostPorts, fmt.Sprintf("127.0.0.1:%d", cOpts.CollectorPort))
}
agent, err := b.WithMetricsFactory(metricsFactory).CreateAgent(logger)
if err != nil {
logger.Fatal("Unable to initialize Jaeger Agent", zap.Error(err))
}
logger.Info("Starting agent")
if err := agent.Run(); err != nil {
logger.Fatal("Failed to run the agent", zap.Error(err))
}
}
func startCollector(
cOpts *collector.CollectorOptions,
sFlags *flags.SharedFlags,
logger *zap.Logger,
baseFactory metrics.Factory,
memoryStore *memory.Store,
) {
metricsFactory := baseFactory.Namespace("jaeger-collector", nil)
spanBuilder, err := collector.NewSpanHandlerBuilder(
cOpts,
sFlags,
basic.Options.LoggerOption(logger),
basic.Options.MetricsFactoryOption(metricsFactory),
basic.Options.MemoryStoreOption(memoryStore),
)
if err != nil {
logger.Fatal("Unable to set up builder", zap.Error(err))
}
ch, err := tchannel.NewChannel("jaeger-collector", &tchannel.ChannelOptions{})
if err != nil {
logger.Fatal("Unable to create new TChannel", zap.Error(err))
}
server := thrift.NewServer(ch)
zipkinSpansHandler, jaegerBatchesHandler := spanBuilder.BuildHandlers()
server.Register(jc.NewTChanCollectorServer(jaegerBatchesHandler))
server.Register(zc.NewTChanZipkinCollectorServer(zipkinSpansHandler))
portStr := ":" + strconv.Itoa(cOpts.CollectorPort)
listener, err := net.Listen("tcp", portStr)
if err != nil {
logger.Fatal("Unable to start listening on channel", zap.Error(err))
}
ch.Serve(listener)
logger.Info("Starting jaeger-collector TChannel server", zap.Int("port", cOpts.CollectorPort))
r := mux.NewRouter()
apiHandler := collectorApp.NewAPIHandler(jaegerBatchesHandler)
apiHandler.RegisterRoutes(r)
httpPortStr := ":" + strconv.Itoa(cOpts.CollectorHTTPPort)
recoveryHandler := recoveryhandler.NewRecoveryHandler(logger, true)
go startZipkinHTTPAPI(logger, cOpts.CollectorZipkinHTTPPort, zipkinSpansHandler, recoveryHandler)
logger.Info("Starting jaeger-collector HTTP server", zap.Int("http-port", cOpts.CollectorHTTPPort))
go func() {
if err := http.ListenAndServe(httpPortStr, recoveryHandler(r)); err != nil {
logger.Fatal("Could not launch jaeger-collector HTTP server", zap.Error(err))
}
}()
}
func startZipkinHTTPAPI(
logger *zap.Logger,
zipkinPort int,
zipkinSpansHandler collectorApp.ZipkinSpansHandler,
recoveryHandler func(http.Handler) http.Handler,
) {
if zipkinPort != 0 {
r := mux.NewRouter()
zipkin.NewAPIHandler(zipkinSpansHandler).RegisterRoutes(r)
httpPortStr := ":" + strconv.Itoa(zipkinPort)
logger.Info("Listening for Zipkin HTTP traffic", zap.Int("zipkin.http-port", zipkinPort))
if err := http.ListenAndServe(httpPortStr, recoveryHandler(r)); err != nil {
logger.Fatal("Could not launch service", zap.Error(err))
}
}
}
func startQuery(
qOpts *query.QueryOptions,
sFlags *flags.SharedFlags,
logger *zap.Logger,
baseFactory metrics.Factory,
memoryStore *memory.Store,
) {
metricsFactory := baseFactory.Namespace("jaeger-query", nil)
storageBuild, err := query.NewStorageBuilder(
sFlags.SpanStorage.Type,
sFlags.DependencyStorage.DataFrequency,
basic.Options.LoggerOption(logger),
basic.Options.MetricsFactoryOption(metricsFactory),
basic.Options.MemoryStoreOption(memoryStore),
)
if err != nil {
logger.Fatal("Failed to wire up service", zap.Error(err))
}
tracer, closer, err := jaegerClientConfig.Configuration{
Sampler: &jaegerClientConfig.SamplerConfig{
Type: "probabilistic",
Param: 0.001,
},
RPCMetrics: true,
}.New("jaeger-query", jaegerClientConfig.Metrics(baseFactory))
if err != nil {
logger.Fatal("Failed to initialize tracer", zap.Error(err))
}
defer closer.Close()
rHandler := queryApp.NewAPIHandler(
storageBuild.SpanReader,
storageBuild.DependencyReader,
queryApp.HandlerOptions.Prefix(qOpts.QueryPrefix),
queryApp.HandlerOptions.Logger(logger),
queryApp.HandlerOptions.Tracer(tracer))
sHandler := queryApp.NewStaticAssetsHandler(qOpts.QueryStaticAssets)
r := mux.NewRouter()
rHandler.RegisterRoutes(r)
sHandler.RegisterRoutes(r)
portStr := ":" + strconv.Itoa(qOpts.QueryPort)
recoveryHandler := recoveryhandler.NewRecoveryHandler(logger, true)
logger.Info("Starting jaeger-query HTTP server", zap.Int("port", qOpts.QueryPort))
if err := http.ListenAndServe(portStr, recoveryHandler(r)); err != nil {
logger.Fatal("Could not launch jaeger-query service", zap.Error(err))
}
}