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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 (
"io"
"os"
"github.com/opentracing/opentracing-go"
"github.com/uber/jaeger-client-go"
"github.com/uber/jaeger-client-go/crossdock/client"
"github.com/uber/jaeger-client-go/crossdock/common"
"github.com/uber/jaeger-client-go/crossdock/log"
"github.com/uber/jaeger-client-go/crossdock/server"
jlog "github.com/uber/jaeger-client-go/log"
)
func main() {
log.Enabled = true
agentHostPort, ok := os.LookupEnv("AGENT_HOST_PORT")
if !ok {
jlog.StdLogger.Error("env AGENT_HOST_PORT is not specified!")
}
sServerURL, ok := os.LookupEnv("SAMPLING_SERVER_URL")
if !ok {
jlog.StdLogger.Error("env SAMPLING_SERVER_URL is not specified!")
}
tracer, tCloser := initTracer()
defer tCloser.Close()
s := &server.Server{Tracer: tracer, SamplingServerURL: sServerURL, AgentHostPort: agentHostPort}
if err := s.Start(); err != nil {
panic(err.Error())
} else {
defer s.Close()
}
client := &client.Client{}
if err := client.Start(); err != nil {
panic(err.Error())
}
}
func initTracer() (opentracing.Tracer, io.Closer) {
t, c := jaeger.NewTracer(
common.DefaultTracerServiceName,
jaeger.NewConstSampler(false),
jaeger.NewLoggingReporter(jlog.StdLogger))
return t, c
}