How to integrate Opentelemetry with Quartz.net in Worker
2024-05-08 05:57:49

在 .NET Core 的 Worker 类型项目中,Opentelemetry 并没有为其提供标准的 Instrumentation,如果我们的项目中以 Quartz.net 作为我们默认的 Schedule Engine 的话,这个时候就需要考虑需要如何将两者即成到一起。

安装依赖包

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dotnet add package Quartz.Extensions.Hosting
dotnet add package OpenTelemetry.Extensions.Hosting
dotnet add package OpenTelemetry.Exporter.Console
dotnet add package OpenTelemetry.Exporter.OpenTelemetryProtocol

集成示例

下面是完整的示例代码

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public class JobListener : IJobListener
{
private readonly ActivitySource _activitySource;
private readonly IDatetimeProvider _datetimeProvider;
public string Name { get; }

public JobListener(
IOptions<DiagnosticsConfiguration> configuration,
IHostEnvironment hostEnvironment,
IDatetimeProvider datetimeProvider)
{
var envName = hostEnvironment.EnvironmentName;
var serviceName = $"{envName}-{configuration.Value.ServiceName}";
_activitySource = new ActivitySource(serviceName);
_datetimeProvider = datetimeProvider;
Name = GetType().Name;
}

public Task JobToBeExecuted(IJobExecutionContext context,
CancellationToken cancellationToken = new CancellationToken())
{
using var activity = _activitySource.StartActivity($"{context.JobDetail.JobType.Name}.JobToBeExecuted");
activity?.SetStatus(ActivityStatusCode.Unset);
activity?.SetStartTime(_datetimeProvider.Now());
return Task.CompletedTask;
}

public Task JobExecutionVetoed(IJobExecutionContext context,
CancellationToken cancellationToken = new CancellationToken())
{
return Task.CompletedTask;
}

public Task JobWasExecuted(IJobExecutionContext context, JobExecutionException? jobException,
CancellationToken cancellationToken = new CancellationToken())
{
using var activity = _activitySource.StartActivity($"{context.JobDetail.JobType.Name}.JobWasExecuted");
activity?.SetStatus(jobException == null ? ActivityStatusCode.Ok : ActivityStatusCode.Error);
activity?.SetEndTime(_datetimeProvider.Now());
return Task.CompletedTask;
}
}
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public static class QuartzJobExtensions
{
public static void AddJobWithTrigger<T>(this IServiceCollectionQuartzConfigurator configurator,
string cronExpression) where T : IJob
{
// Create a "key" for the job
var jobKey = new JobKey(typeof(T).Name);

// Register the job with the DI container
configurator.AddJob<T>(opts => opts.WithIdentity(jobKey));

// Create a trigger for the job
configurator.AddTrigger(opts => opts
.ForJob(jobKey)
.WithIdentity($"{jobKey.Name}-trigger")
.WithCronSchedule(cronExpression));
}
}
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builder.Services.AddQuartz(q =>
{
q.UseJobFactory<MicrosoftDependencyInjectionJobFactory>();
q.AddJobListener<JobListener>();
q.AddJobWithTrigger<HelloWorldJob>("0/2 * * * * ?"); // Run every 2 seconds
}).AddQuartzHostedService(
q =>
{
q.WaitForJobsToComplete = true;
q.StartDelay = TimeSpan.FromSeconds(0);
});
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private static void AddOpenTelemetry(
this IServiceCollection services,
IConfiguration configuration,
IHostEnvironment environment)
{
services.AddOpenTelemetry()
.WithTracing(tracerProviderBuilder =>
{
var openTelemetryConfig = new DiagnosticsConfiguration();
configuration.GetSection("OpenTelemetry").Bind(openTelemetryConfig);

var envName = environment.EnvironmentName;
var serviceName = $"{envName}-{openTelemetryConfig.ServiceName}";

tracerProviderBuilder.ConfigureServices(serviceCollection =>
{
services.AddOptions<DiagnosticsConfiguration>().Bind(configuration.GetSection("OpenTelemetry")).ValidateDataAnnotations();
});

tracerProviderBuilder
.AddSource(serviceName)
.ConfigureResource(resource => resource
.AddService(serviceName, openTelemetryConfig.ServiceNamespace)
.AddAttributes(new KeyValuePair<string, object>[]
{
new("deployment.environment", envName)
}));

if (environment.IsDevelopment())
{
tracerProviderBuilder.AddConsoleExporter();
}
else
{
tracerProviderBuilder.AddOtlpExporter(options =>
{
options.Endpoint = new Uri(openTelemetryConfig.OtlpUrl);
options.Protocol = OtlpExportProtocol.HttpProtobuf;
});
}
}
);
}