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main.go
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main.go
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// Copyright (c) 2018 The Jaeger Authors.
//
// 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 (
"flag"
"strings"
"github.com/grpc-ecosystem/grpc-opentracing/go/otgrpc"
"github.com/hashicorp/go-plugin"
"github.com/opentracing/opentracing-go"
"github.com/spf13/viper"
jaegerClientConfig "github.com/uber/jaeger-client-go/config"
googleGRPC "google.golang.org/grpc"
"github.com/jaegertracing/jaeger/plugin/storage/grpc"
grpcMemory "github.com/jaegertracing/jaeger/plugin/storage/grpc/memory"
"github.com/jaegertracing/jaeger/plugin/storage/grpc/shared"
"github.com/jaegertracing/jaeger/plugin/storage/memory"
)
const (
serviceName = "mem-store"
)
var configPath string
func main() {
flag.StringVar(&configPath, "config", "", "A path to the plugin's configuration file")
flag.Parse()
v := viper.New()
v.AutomaticEnv()
v.SetEnvKeyReplacer(strings.NewReplacer("-", "_", ".", "_"))
if configPath != "" {
v.SetConfigFile(configPath)
if err := v.ReadInConfig(); err != nil {
panic(err)
}
}
opts := memory.Options{}
opts.InitFromViper(v)
traceCfg := &jaegerClientConfig.Configuration{
ServiceName: serviceName,
Sampler: &jaegerClientConfig.SamplerConfig{
Type: "const",
Param: 1.0,
},
RPCMetrics: true,
}
tracer, closer, err := traceCfg.NewTracer()
if err != nil {
panic("Failed to initialize tracer")
}
defer closer.Close()
opentracing.SetGlobalTracer(tracer)
memStorePlugin := grpcMemory.NewStoragePlugin(memory.NewStore(), memory.NewStore())
service := &shared.PluginServices{
Store: memStorePlugin,
ArchiveStore: memStorePlugin,
}
if v.GetBool("enable_streaming_writer") {
service.StreamingSpanWriter = memStorePlugin
}
grpc.ServeWithGRPCServer(service, func(options []googleGRPC.ServerOption) *googleGRPC.Server {
return plugin.DefaultGRPCServer([]googleGRPC.ServerOption{
googleGRPC.UnaryInterceptor(otgrpc.OpenTracingServerInterceptor(tracer)),
googleGRPC.StreamInterceptor(otgrpc.OpenTracingStreamServerInterceptor(tracer)),
})
})
}