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前提條件

完成vpce接入。

背景信息

OpenTelemetry c# SDK提供了c#語言的分布式鏈路追蹤能力，您可以直接使用OTLP gRPC或者HTTP協議向APM服務端上報數據。

接入步驟

1、安裝依賴包

dotnet?add?package?OpenTelemetry.Exporter.Console
dotnet?add?package?OpenTelemetry.Extensions.Hosting
dotnet?add?package?OpenTelemetry.Instrumentation.AspNetCore
dotnet?add?package?OpenTelemetry.Exporter.OpenTelemetryProtocol

2、查看接入點信息

應用列表的接入指引會根據您所在資源池提供“通過 HTTP 上報數據”和“通過 gRPC 上報數據”的ENDPOINT(天翼云vpc網絡接入點)、鑒權TOKEN信息。

3、初始化SDK并設置exporters

1）使用http協議上報，修改Program.cs代碼如下

using?OpenTelemetry.Resources;
using?OpenTelemetry.Trace;
using?OpenTelemetry.Exporter;

//?Ideally,?you?will?want?this?name?to?come?from?a?config?file,?constants?file,?etc.
var?serviceName?=?"csharp-otel-simple-http";
var?serviceVersion?=?"1.0.0";

var?builder?=?WebApplication.CreateBuilder(args);


builder.Services.AddOpenTelemetry()
????.ConfigureResource(resource?=>?resource.AddService(
????????serviceName:?serviceName,
????????serviceVersion:?serviceVersion))
????.WithTracing(tracing?=>?tracing
????????.AddSource(serviceName)
????????.AddAspNetCoreInstrumentation()
????????.AddConsoleExporter()????????//在控制臺導出Trace數據，可選
????????.AddOtlpExporter(options?=>
????????{
????????????//使用HTTP協議上報
????????????options.Endpoint?=?new?Uri("<http_endpoint>");
????????????options.Headers?=?"x-ctg-authorization=<token>";
????????????options.Protocol?=?OtlpExportProtocol.HttpProtobuf;
????????}));

builder.Services.AddControllers();

var?app?=?builder.Build();

app.MapControllers();

app.Run();

2）使用grpc協議上報，修改Program.cs代碼如下

using?OpenTelemetry.Resources;
using?OpenTelemetry.Trace;
using?OpenTelemetry.Exporter;

//?Ideally,?you?will?want?this?name?to?come?from?a?config?file,?constants?file,?etc.
var?serviceName?=?"csharp-otel-simple-grpc";
var?serviceVersion?=?"1.0.0";

var?builder?=?WebApplication.CreateBuilder(args);


builder.Services.AddOpenTelemetry()
????.ConfigureResource(resource?=>?resource.AddService(
????????serviceName:?serviceName,
????????serviceVersion:?serviceVersion))
????.WithTracing(tracing?=>?tracing
????????.AddSource(serviceName)
????????.AddAspNetCoreInstrumentation()
????????.AddConsoleExporter()????????//在控制臺導出Trace數據，可選
????????.AddOtlpExporter(options?=>
????????{
????????????//使用gRPC協議上報
????????????options.Endpoint?=?new?Uri("<grpc_endpoint>");
????????????options.Headers?=?"x-ctg-authorization=<token>";
????????????options.Protocol?=?OtlpExportProtocol.Grpc;
????????}));

builder.Services.AddControllers();

var?app?=?builder.Build();

app.MapControllers();

app.Run();