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98 lines
3.7 KiB
Go
98 lines
3.7 KiB
Go
/*
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* Copyright 2025 CloudWeGo Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package infra
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import (
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"context"
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"fmt"
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"os"
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"github.com/RanFeng/ilog"
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"github.com/cloudwego/eino-ext/callbacks/apmplus"
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"github.com/cloudwego/eino/callbacks"
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hertzconfig "github.com/cloudwego/hertz/pkg/common/config"
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"github.com/hertz-contrib/obs-opentelemetry/provider"
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hertztracing "github.com/hertz-contrib/obs-opentelemetry/tracing"
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)
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var EmptyHertzConfigOption = hertzconfig.Option{}
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// InitAPMPlusTracing initializes APMPlus observability components for Eino applications
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// Creates Eino APMPlus callbacks and optionally initializes Hertz server tracing integration based on the withHertzServer flag.
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// Parameters:
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//
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// withHertzServer - If true, enables Hertz HTTP server tracing integration
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//
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// Returns:
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//
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// tracer - Hertz server configuration (nil if withHertzServer=false)
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// cfg - Tracing configuration instance (nil if withHertzServer=false)
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// shutdown - cleanup function for eino apmplus callback to flush telemetry data to APMPlus Server
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func InitAPMPlusTracing(ctx context.Context, withHertzServer bool) (tracer hertzconfig.Option, cfg *hertztracing.Config, shutdown func(ctx context.Context) error) {
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appKey := os.Getenv("APMPLUS_APP_KEY")
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if appKey == "" {
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return EmptyHertzConfigOption, nil, nil
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}
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region := os.Getenv("APMPLUS_REGION")
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if region == "" {
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region = "cn-beijing"
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}
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_, shutdown = initAPMPlusCallback(ctx, appKey, region)
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if !withHertzServer {
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return EmptyHertzConfigOption, nil, shutdown
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}
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// for hertz server, init hertz tracing integration
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tracer, cfg = initHertzTracing(ctx, appKey, region)
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return tracer, cfg, shutdown
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}
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// initAPMPlusCallback initializes the Eino APMPlus callback handler.
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// It creates trace spans and collects metrics for Eino applications,
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// which will be sent to the APMPlus server for observability.
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func initAPMPlusCallback(ctx context.Context, appKey, region string) (callbacks.Handler, func(ctx context.Context) error) {
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ilog.EventInfo(ctx, "Init APMPlus callback, watch at: https://console.volcengine.com/apmplus-server", region)
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cbh, shutdown, err := apmplus.NewApmplusHandler(&apmplus.Config{
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Host: fmt.Sprintf("apmplus-%s.volces.com:4317", region),
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AppKey: appKey,
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ServiceName: "deer-go",
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Release: "release/v0.0.1",
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})
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if err != nil {
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ilog.EventError(ctx, err, "init apmplus callback failed")
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return nil, nil
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}
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callbacks.AppendGlobalHandlers(cbh)
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ilog.EventInfo(ctx, "Init APMPlus Callback success")
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return cbh, shutdown
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}
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// initHertzTracing initializes Hertz framework tracing integration
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// It creates trace spans and collects metrics for incoming HTTP requests,
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// which will be sent to the APMPlus server for observability.
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func initHertzTracing(ctx context.Context, appKey, region string) (hertzconfig.Option, *hertztracing.Config) {
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ilog.EventInfo(ctx, "Init Hertz Tracing", region)
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_ = provider.NewOpenTelemetryProvider(
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provider.WithServiceName("deer-go"),
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provider.WithExportEndpoint(fmt.Sprintf("apmplus-%s.volces.com:4317", region)),
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provider.WithInsecure(),
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provider.WithHeaders(map[string]string{"X-ByteAPM-AppKey": appKey}),
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)
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tracer, cfg := hertztracing.NewServerTracer()
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return tracer, cfg
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}
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