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Program.cs
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Program.cs
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// <copyright file="Program.cs" company="OpenTelemetry Authors">
// Copyright The OpenTelemetry 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.
// </copyright>
using System;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using OpenTelemetry.Logs;
using OpenTelemetry.Resources;
namespace Examples.AspNetCore
{
public class Program
{
public static void Main(string[] args)
{
CreateHostBuilder(args).Build().Run();
}
public static IHostBuilder CreateHostBuilder(string[] args) =>
Host.CreateDefaultBuilder(args)
.ConfigureWebHostDefaults(webBuilder =>
{
webBuilder.UseStartup<Startup>();
})
.ConfigureLogging((context, builder) =>
{
builder.ClearProviders();
builder.AddConsole();
var logExporter = context.Configuration.GetValue<string>("UseLogExporter").ToLowerInvariant();
switch (logExporter)
{
case "otlp":
// Adding the OtlpExporter creates a GrpcChannel.
// This switch must be set before creating a GrpcChannel when calling an insecure gRPC service.
// See: https://docs.microsoft.com/aspnet/core/grpc/troubleshoot#call-insecure-grpc-services-with-net-core-client
AppContext.SetSwitch("System.Net.Http.SocketsHttpHandler.Http2UnencryptedSupport", true);
builder.AddOpenTelemetry(options =>
{
options.SetResourceBuilder(ResourceBuilder.CreateDefault().AddService(context.Configuration.GetValue<string>("Otlp:ServiceName")));
options.AddOtlpExporter(otlpOptions =>
{
otlpOptions.Endpoint = new Uri(context.Configuration.GetValue<string>("Otlp:Endpoint"));
});
});
break;
default:
builder.AddOpenTelemetry(options =>
{
options.AddConsoleExporter();
});
break;
}
builder.Services.Configure<OpenTelemetryLoggerOptions>(opt =>
{
opt.IncludeScopes = true;
opt.ParseStateValues = true;
opt.IncludeFormattedMessage = true;
});
});
}
}