├── .gitignore ├── ConsoleAppConsumoAPIs ├── ConsoleAppConsumoAPIs.csproj ├── ConsoleAppConsumoAPIs.sln ├── Endpoints.cs ├── Models │ └── ResultadoContador.cs └── Program.cs ├── DockerCompose └── docker-compose.yml ├── Kafka └── APIContagem │ ├── .vscode │ ├── launch.json │ └── tasks.json │ ├── APIContagem.csproj │ ├── APIContagem.sln │ ├── Contador.cs │ ├── Controllers │ └── ContadorController.cs │ ├── Kafka │ └── KafkaExtensions.cs │ ├── Models │ └── ResultadoContador.cs │ ├── Program.cs │ ├── Properties │ └── launchSettings.json │ ├── Tracing │ └── OpenTelemetryExtensions.cs │ ├── appsettings.Development.json │ └── appsettings.json ├── README.md ├── Redis └── APIContagem │ ├── .vscode │ ├── launch.json │ └── tasks.json │ ├── APIContagem.csproj │ ├── APIContagem.sln │ ├── Controllers │ └── ContadorController.cs │ ├── Logging │ └── ContagemLogging.cs │ ├── Models │ └── ResultadoContador.cs │ ├── Program.cs │ ├── Properties │ └── launchSettings.json │ ├── Tracing │ └── OpenTelemetryExtensions.cs │ ├── appsettings.Development.json │ └── appsettings.json ├── Scripts-SqlServer └── BaseContagemKafka.sql └── WorkerContagem ├── .vscode ├── launch.json └── tasks.json ├── Data ├── ContagemRepository.cs └── HistoricoContagem.cs ├── Kafka └── KafkaExtensions.cs ├── Models └── ResultadoContador.cs ├── Program.cs ├── Properties └── launchSettings.json ├── Tracing └── OpenTelemetryExtensions.cs ├── Worker.cs ├── WorkerContagem.csproj ├── WorkerContagem.sln ├── appsettings.Development.json └── appsettings.json /.gitignore: -------------------------------------------------------------------------------- 1 | ## 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2 | using ConsoleAppConsumoAPIs.Models; 3 | using System.Net.Http.Json; 4 | 5 | namespace ConsoleAppConsumoAPIs; 6 | 7 | public static class Endpoints 8 | { 9 | public static string APIContagemKafka { get; } = "http://localhost:6900/contador"; 10 | public static string APIContagemRedis { get; } = "http://localhost:6300/contador"; 11 | 12 | public static void SendRequest(string tecnologia, string endpoint, HttpClient client) 13 | { 14 | using var activity = new ActivitySource(nameof(ConsoleAppConsumoAPIs), "1.0.0") 15 | .StartActivity($"{nameof(SendRequest)} APIContagem{tecnologia}"); 16 | activity?.SetTag("endpoint", endpoint); 17 | 18 | var resultado = client.GetFromJsonAsync(endpoint).Result; 19 | activity?.SetTag("valorAtual", resultado!.ValorAtual); 20 | 21 | Console.WriteLine( 22 | $"{tecnologia}: {resultado!.Producer} | Valor atual = {resultado.ValorAtual}"); 23 | } 24 | } -------------------------------------------------------------------------------- /ConsoleAppConsumoAPIs/Models/ResultadoContador.cs: -------------------------------------------------------------------------------- 1 | namespace ConsoleAppConsumoAPIs.Models; 2 | 3 | public class ResultadoContador 4 | { 5 | public int ValorAtual { get; set; } 6 | public string? Producer { get; set; } 7 | } -------------------------------------------------------------------------------- /ConsoleAppConsumoAPIs/Program.cs: -------------------------------------------------------------------------------- 1 | using System.Diagnostics; 2 | using OpenTelemetry; 3 | using OpenTelemetry.Trace; 4 | using OpenTelemetry.Resources; 5 | using ConsoleAppConsumoAPIs; 6 | 7 | Console.WriteLine("***** Tracing Distribuído com .NET 6 + ASP.NET Core + Jaeger + OpenTelemetry + " + 8 | "Apache Kafka + SQL Server *****"); 9 | 10 | using var tracerProvider = Sdk.CreateTracerProviderBuilder() 11 | .AddSource(nameof(ConsoleAppConsumoAPIs)) 12 | .SetResourceBuilder( 13 | ResourceBuilder.CreateDefault() 14 | .AddService(serviceName: nameof(ConsoleAppConsumoAPIs), serviceVersion: "1.0.0")) 15 | .AddHttpClientInstrumentation() 16 | .AddJaegerExporter(exporter => 17 | { 18 | exporter.AgentHost = "localhost"; 19 | exporter.AgentPort = 6831; 20 | }) 21 | .Build(); 22 | 23 | using var client = new HttpClient(); 24 | using var activitySource = new ActivitySource(nameof(ConsoleAppConsumoAPIs), "1.0.0"); 25 | 26 | while (true) 27 | { 28 | using var activity = activitySource.StartActivity("SendRequests"); 29 | activity?.SetTag("startPoint", "Program.cs"); 30 | 31 | Endpoints.SendRequest("Kafka", Endpoints.APIContagemKafka, client); 32 | Endpoints.SendRequest("Redis", Endpoints.APIContagemRedis, client); 33 | 34 | activity?.Dispose(); 35 | 36 | Console.WriteLine("Pressione ENTER para enviar uma nova requisição..."); 37 | Console.ReadLine(); 38 | } -------------------------------------------------------------------------------- /DockerCompose/docker-compose.yml: -------------------------------------------------------------------------------- 1 | services: 2 | jaeger: 3 | image: jaegertracing/all-in-one:latest 4 | ports: 5 | - "6831:6831/udp" 6 | - "16686:16686" 7 | sqlserver: 8 | image: mcr.microsoft.com/mssql/server:2019-GA-ubuntu-16.04 9 | environment: 10 | SA_PASSWORD: "SqlServer2019!" 11 | ACCEPT_EULA: "Y" 12 | MSSQL_PID: "Developer" 13 | ports: 14 | - "1433:1433" 15 | redis: 16 | image: redis:alpine 17 | ports: 18 | - "6379:6379" 19 | zookeeper: 20 | image: confluentinc/cp-zookeeper:latest 21 | environment: 22 | ZOOKEEPER_CLIENT_PORT: 2181 23 | ZOOKEEPER_TICK_TIME: 2000 24 | kafka: 25 | image: confluentinc/cp-kafka:latest 26 | depends_on: 27 | - zookeeper 28 | ports: 29 | - 9092:9092 30 | environment: 31 | KAFKA_BROKER_ID: 1 32 | KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181 33 | KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka:29092,PLAINTEXT_HOST://localhost:9092 34 | KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT 35 | KAFKA_INTER_BROKER_LISTENER_NAME: PLAINTEXT 36 | KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1 -------------------------------------------------------------------------------- /Kafka/APIContagem/.vscode/launch.json: -------------------------------------------------------------------------------- 1 | { 2 | "version": "0.2.0", 3 | "configurations": [ 4 | { 5 | // Use IntelliSense to find out which attributes exist for C# debugging 6 | // Use hover for the description of the existing attributes 7 | // For further information visit https://github.com/OmniSharp/omnisharp-vscode/blob/master/debugger-launchjson.md 8 | "name": ".NET Core Launch (web)", 9 | "type": "coreclr", 10 | "request": "launch", 11 | "preLaunchTask": "build", 12 | // If you have changed target frameworks, make sure to update the program path. 13 | "program": "${workspaceFolder}/bin/Debug/net6.0/APIContagem.dll", 14 | "args": [], 15 | "cwd": "${workspaceFolder}", 16 | "stopAtEntry": false, 17 | // Enable launching a web browser when ASP.NET Core starts. For more information: https://aka.ms/VSCode-CS-LaunchJson-WebBrowser 18 | "serverReadyAction": { 19 | "action": "openExternally", 20 | "pattern": "\\bNow listening on:\\s+(https?://\\S+)" 21 | }, 22 | "env": { 23 | "ASPNETCORE_ENVIRONMENT": "Development" 24 | }, 25 | "sourceFileMap": { 26 | "/Views": "${workspaceFolder}/Views" 27 | } 28 | }, 29 | { 30 | "name": ".NET Core Attach", 31 | "type": "coreclr", 32 | "request": "attach" 33 | } 34 | ] 35 | } -------------------------------------------------------------------------------- /Kafka/APIContagem/.vscode/tasks.json: -------------------------------------------------------------------------------- 1 | { 2 | "version": "2.0.0", 3 | "tasks": [ 4 | { 5 | "label": "build", 6 | "command": "dotnet", 7 | "type": "process", 8 | "args": [ 9 | "build", 10 | "${workspaceFolder}/APIContagem.csproj", 11 | "/property:GenerateFullPaths=true", 12 | "/consoleloggerparameters:NoSummary" 13 | ], 14 | "problemMatcher": "$msCompile" 15 | }, 16 | { 17 | "label": "publish", 18 | "command": "dotnet", 19 | "type": "process", 20 | "args": [ 21 | "publish", 22 | "${workspaceFolder}/APIContagem.csproj", 23 | "/property:GenerateFullPaths=true", 24 | "/consoleloggerparameters:NoSummary" 25 | ], 26 | "problemMatcher": "$msCompile" 27 | }, 28 | { 29 | "label": "watch", 30 | "command": "dotnet", 31 | "type": "process", 32 | "args": [ 33 | "watch", 34 | "run", 35 | "${workspaceFolder}/APIContagem.csproj", 36 | "/property:GenerateFullPaths=true", 37 | "/consoleloggerparameters:NoSummary" 38 | ], 39 | "problemMatcher": "$msCompile" 40 | } 41 | ] 42 | } -------------------------------------------------------------------------------- /Kafka/APIContagem/APIContagem.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | net6.0 5 | enable 6 | enable 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | -------------------------------------------------------------------------------- /Kafka/APIContagem/APIContagem.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio Version 17 4 | VisualStudioVersion = 17.3.32714.290 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "APIContagem", "APIContagem.csproj", "{E2488ACB-53FF-4D42-A72F-C9D4EB55E8D3}" 7 | EndProject 8 | Global 9 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 10 | Debug|Any CPU = Debug|Any CPU 11 | Release|Any CPU = Release|Any CPU 12 | EndGlobalSection 13 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 14 | {E2488ACB-53FF-4D42-A72F-C9D4EB55E8D3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 15 | {E2488ACB-53FF-4D42-A72F-C9D4EB55E8D3}.Debug|Any CPU.Build.0 = Debug|Any CPU 16 | {E2488ACB-53FF-4D42-A72F-C9D4EB55E8D3}.Release|Any CPU.ActiveCfg = Release|Any CPU 17 | {E2488ACB-53FF-4D42-A72F-C9D4EB55E8D3}.Release|Any CPU.Build.0 = Release|Any CPU 18 | EndGlobalSection 19 | GlobalSection(SolutionProperties) = preSolution 20 | HideSolutionNode = FALSE 21 | EndGlobalSection 22 | GlobalSection(ExtensibilityGlobals) = postSolution 23 | SolutionGuid = {D6CA2BBC-1E95-4D9A-8031-A46E049BD040} 24 | EndGlobalSection 25 | EndGlobal 26 | -------------------------------------------------------------------------------- /Kafka/APIContagem/Contador.cs: -------------------------------------------------------------------------------- 1 | using System.Runtime.InteropServices; 2 | using APIContagem.Kafka; 3 | 4 | namespace APIContagem; 5 | 6 | public class Contador 7 | { 8 | private static readonly string _LOCAL; 9 | private static readonly string _KERNEL; 10 | private static readonly string _FRAMEWORK; 11 | 12 | static Contador() 13 | { 14 | _LOCAL = Environment.MachineName; 15 | _KERNEL = Environment.OSVersion.VersionString; 16 | _FRAMEWORK = RuntimeInformation.FrameworkDescription; 17 | } 18 | 19 | public Contador() 20 | { 21 | _partition = KafkaExtensions.QtdPartitions > 1 ? -1 : 0; 22 | } 23 | 24 | private int _valorAtual = 89_999; 25 | private int _partition; 26 | 27 | public int ValorAtual { get => _valorAtual; } 28 | public int Partition { get => _partition; } 29 | public string Local { get => _LOCAL; } 30 | public string Kernel { get => _KERNEL; } 31 | public string Framework { get => _FRAMEWORK; } 32 | 33 | public void Incrementar() 34 | { 35 | _valorAtual++; 36 | 37 | if (KafkaExtensions.QtdPartitions > 1) 38 | { 39 | _partition++; 40 | if (_partition == KafkaExtensions.QtdPartitions) 41 | _partition = 0; 42 | } 43 | } 44 | } -------------------------------------------------------------------------------- /Kafka/APIContagem/Controllers/ContadorController.cs: -------------------------------------------------------------------------------- 1 | using System.Diagnostics; 2 | using System.Text; 3 | using System.Text.Json; 4 | using Microsoft.AspNetCore.Mvc; 5 | using Confluent.Kafka; 6 | using OpenTelemetry; 7 | using OpenTelemetry.Context.Propagation; 8 | using APIContagem.Models; 9 | using APIContagem.Kafka; 10 | using APIContagem.Tracing; 11 | 12 | namespace APIContagem.Controllers; 13 | 14 | [ApiController] 15 | [Route("[controller]")] 16 | public class ContadorController : ControllerBase 17 | { 18 | private static readonly TextMapPropagator Propagator = Propagators.DefaultTextMapPropagator; 19 | private static readonly Contador _CONTADOR = new Contador(); 20 | private readonly ILogger _logger; 21 | private readonly IConfiguration _configuration; 22 | 23 | public ContadorController(ILogger logger, 24 | IConfiguration configuration) 25 | { 26 | _logger = logger; 27 | _configuration = configuration; 28 | } 29 | 30 | [HttpGet] 31 | public ResultadoContador Get() 32 | { 33 | // Solucao que serviu de base para a implementacao deste exemplo: 34 | // https://github.com/open-telemetry/opentelemetry-dotnet/tree/main/examples/MicroserviceExample 35 | 36 | int valorAtualContador; 37 | int partition; 38 | 39 | lock (_CONTADOR) 40 | { 41 | _CONTADOR.Incrementar(); 42 | valorAtualContador = _CONTADOR.ValorAtual; 43 | partition = _CONTADOR.Partition; 44 | } 45 | 46 | using var activity = OpenTelemetryExtensions.CreateActivitySource() 47 | .StartActivity("Identificando"); 48 | activity?.SetTag("valorAtual", valorAtualContador); 49 | 50 | var resultado = new ResultadoContador() 51 | { 52 | ValorAtual = valorAtualContador, 53 | Producer = _CONTADOR.Local, 54 | Kernel = _CONTADOR.Kernel, 55 | Framework = _CONTADOR.Framework, 56 | Mensagem = _configuration["MensagemVariavel"] 57 | }; 58 | 59 | string topicName = _configuration["ApacheKafka:Topic"]; 60 | string jsonContagem = JsonSerializer.Serialize(resultado); 61 | 62 | // Semantic convention - OpenTelemetry messaging specification: 63 | // https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/semantic_conventions/messaging.md#span-name 64 | var activityName = $"{topicName} send"; 65 | 66 | using (var producer = KafkaExtensions.CreateProducer(_configuration)) 67 | { 68 | var idMensagemContagem = Guid.NewGuid().ToString(); 69 | 70 | using var sendActivity = OpenTelemetryExtensions.CreateActivitySource() 71 | .StartActivity(activityName, ActivityKind.Producer); 72 | 73 | ActivityContext contextToInject = default; 74 | if (sendActivity != null) 75 | { 76 | contextToInject = sendActivity.Context; 77 | } 78 | else if (Activity.Current != null) 79 | { 80 | contextToInject = Activity.Current.Context; 81 | } 82 | 83 | var headers = new Headers(); 84 | Propagator.Inject(new PropagationContext(contextToInject, Baggage.Current), headers, 85 | InjectTraceContextIntoHeaders); 86 | 87 | sendActivity?.SetTag("messaging.system", "kafka"); 88 | sendActivity?.SetTag("messaging.destination_kind", "topic"); 89 | sendActivity?.SetTag("messaging.destination", topicName); 90 | sendActivity?.SetTag("messaging.operation", "process"); 91 | sendActivity?.SetTag("messaging.kafka.client_id", 92 | $"{nameof(APIContagem)}-{Environment.MachineName}"); 93 | sendActivity?.SetTag("message", jsonContagem); 94 | sendActivity?.SetTag("idMensagemContagem", idMensagemContagem); 95 | sendActivity?.SetTag("valorAtualContador", valorAtualContador); 96 | 97 | var result = producer.ProduceAsync( 98 | new TopicPartition(topicName, new Partition(partition)), 99 | new Message 100 | { Value = jsonContagem, Headers = headers }).Result; 101 | 102 | _logger.LogInformation( 103 | $"Apache Kafka - Envio para o topico {topicName} concluido | Particao: {partition} | " + 104 | $"{jsonContagem} | Id Mensagem: {idMensagemContagem} | Status: { result.Status.ToString()}"); 105 | } 106 | 107 | return resultado; 108 | } 109 | 110 | private void InjectTraceContextIntoHeaders(Headers headers, string key, string value) 111 | { 112 | try 113 | { 114 | headers.Add(key, Encoding.UTF8.GetBytes(value)); 115 | } 116 | catch (Exception ex) 117 | { 118 | this._logger.LogError(ex, "Falha de injecao com o trace context."); 119 | } 120 | } 121 | } -------------------------------------------------------------------------------- /Kafka/APIContagem/Kafka/KafkaExtensions.cs: -------------------------------------------------------------------------------- 1 | using Confluent.Kafka; 2 | 3 | namespace APIContagem.Kafka; 4 | 5 | public static class KafkaExtensions 6 | { 7 | private static int _QtdPartitions = 1; 8 | 9 | public static int QtdPartitions 10 | { 11 | get => _QtdPartitions; 12 | } 13 | 14 | public static void CheckNumPartitions( 15 | IConfiguration configuration) 16 | { 17 | AdminClientConfig kafkaConfig; 18 | var password = configuration["ApacheKafka:Password"]; 19 | if (!String.IsNullOrWhiteSpace(password)) 20 | kafkaConfig = new () 21 | { 22 | BootstrapServers = configuration["ApacheKafka:Host"], 23 | SecurityProtocol = SecurityProtocol.SaslSsl, 24 | SaslMechanism = SaslMechanism.Plain, 25 | SaslUsername = configuration["ApacheKafka:Username"], 26 | SaslPassword = password 27 | }; 28 | else 29 | kafkaConfig = new () 30 | { 31 | BootstrapServers = configuration["ApacheKafka:Host"], 32 | }; 33 | 34 | using var adminClient = new AdminClientBuilder(kafkaConfig).Build(); 35 | 36 | var infoTopic = adminClient.GetMetadata(configuration["ApacheKafka:Topic"], 37 | TimeSpan.FromSeconds(25)).Topics.FirstOrDefault(); 38 | if (infoTopic is not null) 39 | _QtdPartitions = infoTopic.Partitions.Count; 40 | } 41 | 42 | public static IProducer CreateProducer( 43 | IConfiguration configuration) 44 | { 45 | var password = configuration["ApacheKafka:Password"]; 46 | if (!String.IsNullOrWhiteSpace(password)) 47 | return new ProducerBuilder( 48 | new ProducerConfig() 49 | { 50 | BootstrapServers = configuration["ApacheKafka:Host"], 51 | SecurityProtocol = SecurityProtocol.SaslSsl, 52 | SaslMechanism = SaslMechanism.Plain, 53 | SaslUsername = configuration["ApacheKafka:Username"], 54 | SaslPassword = password 55 | }).Build(); 56 | else 57 | return new ProducerBuilder( 58 | new ProducerConfig() 59 | { 60 | BootstrapServers = configuration["ApacheKafka:Host"] 61 | }).Build(); 62 | } 63 | } -------------------------------------------------------------------------------- /Kafka/APIContagem/Models/ResultadoContador.cs: -------------------------------------------------------------------------------- 1 | namespace APIContagem.Models; 2 | 3 | public class ResultadoContador 4 | { 5 | public int ValorAtual { get; set; } 6 | public string? Producer { get; set; } 7 | public string? Kernel { get; set; } 8 | public string? Framework { get; set; } 9 | public string? Mensagem { get; set; } 10 | } -------------------------------------------------------------------------------- /Kafka/APIContagem/Program.cs: -------------------------------------------------------------------------------- 1 | using OpenTelemetry.Resources; 2 | using OpenTelemetry.Trace; 3 | using APIContagem.Kafka; 4 | using APIContagem.Tracing; 5 | 6 | var builder = WebApplication.CreateBuilder(args); 7 | 8 | builder.Services.AddControllers(); 9 | builder.Services.AddEndpointsApiExplorer(); 10 | builder.Services.AddSwaggerGen(); 11 | 12 | builder.Services.AddOpenTelemetryTracing(traceProvider => 13 | { 14 | traceProvider 15 | .AddSource(OpenTelemetryExtensions.ServiceName) 16 | .SetResourceBuilder( 17 | ResourceBuilder.CreateDefault() 18 | .AddService(serviceName: OpenTelemetryExtensions.ServiceName, 19 | serviceVersion: OpenTelemetryExtensions.ServiceVersion)) 20 | .AddHttpClientInstrumentation() 21 | .AddAspNetCoreInstrumentation() 22 | .AddJaegerExporter(exporter => 23 | { 24 | exporter.AgentHost = builder.Configuration["Jaeger:AgentHost"]; 25 | exporter.AgentPort = Convert.ToInt32(builder.Configuration["Jaeger:AgentPort"]); 26 | }); 27 | }); 28 | 29 | KafkaExtensions.CheckNumPartitions(builder.Configuration); 30 | 31 | var app = builder.Build(); 32 | 33 | app.UseSwagger(); 34 | app.UseSwaggerUI(); 35 | 36 | app.UseHttpsRedirection(); 37 | 38 | app.UseAuthorization(); 39 | 40 | app.MapControllers(); 41 | 42 | app.Run(); -------------------------------------------------------------------------------- /Kafka/APIContagem/Properties/launchSettings.json: -------------------------------------------------------------------------------- 1 | { 2 | "$schema": "https://json.schemastore.org/launchsettings.json", 3 | "iisSettings": { 4 | "windowsAuthentication": false, 5 | "anonymousAuthentication": true, 6 | "iisExpress": { 7 | "applicationUrl": "http://localhost:58703", 8 | "sslPort": 44348 9 | } 10 | }, 11 | "profiles": { 12 | "APIContagem": { 13 | "commandName": "Project", 14 | "dotnetRunMessages": true, 15 | "launchBrowser": true, 16 | "launchUrl": "swagger", 17 | "applicationUrl": "https://localhost:7208;http://localhost:5062", 18 | "environmentVariables": { 19 | "ASPNETCORE_ENVIRONMENT": "Development" 20 | } 21 | }, 22 | "IIS Express": { 23 | "commandName": "IISExpress", 24 | "launchBrowser": true, 25 | "launchUrl": "swagger", 26 | "environmentVariables": { 27 | "ASPNETCORE_ENVIRONMENT": "Development" 28 | } 29 | } 30 | } 31 | } 32 | -------------------------------------------------------------------------------- /Kafka/APIContagem/Tracing/OpenTelemetryExtensions.cs: -------------------------------------------------------------------------------- 1 | using System.Diagnostics; 2 | 3 | namespace APIContagem.Tracing; 4 | 5 | public static class OpenTelemetryExtensions 6 | { 7 | public static string ServiceName { get; } 8 | public static string ServiceVersion { get; } 9 | 10 | static OpenTelemetryExtensions() 11 | { 12 | ServiceName = typeof(OpenTelemetryExtensions).Assembly.GetName().Name! + "Kafka"; 13 | ServiceVersion = typeof(OpenTelemetryExtensions).Assembly.GetName().Version!.ToString(); 14 | } 15 | 16 | public static ActivitySource CreateActivitySource() => 17 | new ActivitySource(ServiceName, ServiceVersion); 18 | } -------------------------------------------------------------------------------- /Kafka/APIContagem/appsettings.Development.json: -------------------------------------------------------------------------------- 1 | { 2 | "Logging": { 3 | "LogLevel": { 4 | "Default": "Information", 5 | "Microsoft.AspNetCore": "Warning" 6 | } 7 | } 8 | } -------------------------------------------------------------------------------- /Kafka/APIContagem/appsettings.json: -------------------------------------------------------------------------------- 1 | { 2 | "MensagemVariavel": "Testes com Kafka + OpenTelemetry + Jaeger", 3 | "Jaeger": { 4 | "AgentHost": "localhost", 5 | "AgentPort": "6831" 6 | }, 7 | "ApacheKafka": { 8 | "Topic": "topic-contagem", 9 | "Host": "localhost:9092", 10 | "Username": "", 11 | "Password": "" 12 | }, 13 | "Logging": { 14 | "LogLevel": { 15 | "Default": "Information", 16 | "Microsoft.AspNetCore": "Warning" 17 | } 18 | }, 19 | "AllowedHosts": "*", 20 | "Kestrel": { 21 | "Endpoints": { 22 | "HTTP": { 23 | "Url": "http://localhost:6900" 24 | } 25 | } 26 | } 27 | } -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # DistributedTracing-OpenTelemetry-Jaeger-DotNet6-Kafka-SqlServer-Redis 2 | Exemplos de implementação de tracing distribuído em .NET 6 com Jaeger e OpenTelemetry. Inclui o uso de Apache Kafka, SQL Server, Redis e Docker compose. 3 | 4 | Para saber mais sobre Distributed Tracing e Context Propagation com o OpenTelemetry acesse o artigo a seguir (o exemplo foi baseado em RabbitMQ e serviu de base para a implementação deste repositório): 5 | 6 | **[Jaeger + OpenTelemetry + RabbitMQ: tracing distribuído, dependências entre aplicações...](https://renatogroffe.medium.com/jaeger-opentelemetry-rabbitmq-tracing-distribu%C3%ADdo-depend%C3%AAncias-entre-aplica%C3%A7%C3%B5es-58d430a1ddd8)** -------------------------------------------------------------------------------- /Redis/APIContagem/.vscode/launch.json: -------------------------------------------------------------------------------- 1 | { 2 | "version": "0.2.0", 3 | "configurations": [ 4 | { 5 | // Use IntelliSense to find out which attributes exist for C# debugging 6 | // Use hover for the description of the existing attributes 7 | // For further information visit https://github.com/OmniSharp/omnisharp-vscode/blob/master/debugger-launchjson.md 8 | "name": ".NET Core Launch (web)", 9 | "type": "coreclr", 10 | "request": "launch", 11 | "preLaunchTask": "build", 12 | // If you have changed target frameworks, make sure to update the program path. 13 | "program": "${workspaceFolder}/bin/Debug/net6.0/APIContagem.dll", 14 | "args": [], 15 | "cwd": "${workspaceFolder}", 16 | "stopAtEntry": false, 17 | // Enable launching a web browser when ASP.NET Core starts. For more information: https://aka.ms/VSCode-CS-LaunchJson-WebBrowser 18 | "serverReadyAction": { 19 | "action": "openExternally", 20 | "pattern": "\\bNow listening on:\\s+(https?://\\S+)" 21 | }, 22 | "env": { 23 | "ASPNETCORE_ENVIRONMENT": "Development" 24 | }, 25 | "sourceFileMap": { 26 | "/Views": "${workspaceFolder}/Views" 27 | } 28 | }, 29 | { 30 | "name": ".NET Core Attach", 31 | "type": "coreclr", 32 | "request": "attach" 33 | } 34 | ] 35 | } -------------------------------------------------------------------------------- /Redis/APIContagem/.vscode/tasks.json: -------------------------------------------------------------------------------- 1 | { 2 | "version": "2.0.0", 3 | "tasks": [ 4 | { 5 | "label": "build", 6 | "command": "dotnet", 7 | "type": "process", 8 | "args": [ 9 | "build", 10 | "${workspaceFolder}/APIContagem.csproj", 11 | "/property:GenerateFullPaths=true", 12 | "/consoleloggerparameters:NoSummary" 13 | ], 14 | "problemMatcher": "$msCompile" 15 | }, 16 | { 17 | "label": "publish", 18 | "command": "dotnet", 19 | "type": "process", 20 | "args": [ 21 | "publish", 22 | "${workspaceFolder}/APIContagem.csproj", 23 | "/property:GenerateFullPaths=true", 24 | "/consoleloggerparameters:NoSummary" 25 | ], 26 | "problemMatcher": "$msCompile" 27 | }, 28 | { 29 | "label": "watch", 30 | "command": "dotnet", 31 | "type": "process", 32 | "args": [ 33 | "watch", 34 | "run", 35 | "${workspaceFolder}/APIContagem.csproj", 36 | "/property:GenerateFullPaths=true", 37 | "/consoleloggerparameters:NoSummary" 38 | ], 39 | "problemMatcher": "$msCompile" 40 | } 41 | ] 42 | } -------------------------------------------------------------------------------- /Redis/APIContagem/APIContagem.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | net6.0 5 | enable 6 | enable 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | -------------------------------------------------------------------------------- /Redis/APIContagem/APIContagem.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio Version 17 4 | VisualStudioVersion = 17.1.32104.313 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "APIContagem", "APIContagem.csproj", "{5F55B957-7374-4CE3-90D4-3C67BEF8A2F4}" 7 | EndProject 8 | Global 9 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 10 | Debug|Any CPU = Debug|Any CPU 11 | Release|Any CPU = Release|Any CPU 12 | EndGlobalSection 13 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 14 | {5F55B957-7374-4CE3-90D4-3C67BEF8A2F4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 15 | {5F55B957-7374-4CE3-90D4-3C67BEF8A2F4}.Debug|Any CPU.Build.0 = Debug|Any CPU 16 | {5F55B957-7374-4CE3-90D4-3C67BEF8A2F4}.Release|Any CPU.ActiveCfg = Release|Any CPU 17 | {5F55B957-7374-4CE3-90D4-3C67BEF8A2F4}.Release|Any CPU.Build.0 = Release|Any CPU 18 | EndGlobalSection 19 | GlobalSection(SolutionProperties) = preSolution 20 | HideSolutionNode = FALSE 21 | EndGlobalSection 22 | GlobalSection(ExtensibilityGlobals) = postSolution 23 | SolutionGuid = {A1B8EE6D-E8D2-4194-9A83-E90580D205B8} 24 | EndGlobalSection 25 | EndGlobal 26 | -------------------------------------------------------------------------------- /Redis/APIContagem/Controllers/ContadorController.cs: -------------------------------------------------------------------------------- 1 | using Microsoft.AspNetCore.Mvc; 2 | using System.Diagnostics; 3 | using StackExchange.Redis; 4 | using APIContagem.Models; 5 | using APIContagem.Logging; 6 | using APIContagem.Tracing; 7 | 8 | namespace APIContagem.Controllers; 9 | 10 | [ApiController] 11 | [Route("[controller]")] 12 | public class ContadorController : ControllerBase 13 | { 14 | private readonly ILogger _logger; 15 | private readonly ConnectionMultiplexer _connectionRedis; 16 | private readonly ActivitySource _activitySource; 17 | 18 | public ContadorController(ILogger logger, 19 | ConnectionMultiplexer connectionRedis) 20 | { 21 | _activitySource = OpenTelemetryExtensions.CreateActivitySource(); 22 | using var activity = 23 | _activitySource.StartActivity($"Construtor ({nameof(ContadorController)})"); 24 | activity!.SetTag("horario", $"{DateTime.Now:HH:mm:ss dd/MM/yyyy}"); 25 | 26 | _logger = logger; 27 | _connectionRedis = connectionRedis; 28 | } 29 | 30 | [HttpGet] 31 | public ResultadoContador Get() 32 | { 33 | using var activity = 34 | _activitySource.StartActivity($"{nameof(Get)} ({nameof(ContadorController)})"); 35 | 36 | var valorAtualContador = 37 | (int)_connectionRedis.GetDatabase().StringIncrement("APIContagem");; 38 | 39 | _logger.LogValorAtual(valorAtualContador); 40 | 41 | activity!.SetTag("valorContador", valorAtualContador); 42 | activity!.SetTag("producer", OpenTelemetryExtensions.Local); 43 | activity!.SetTag("kernel", OpenTelemetryExtensions.Kernel); 44 | activity!.SetTag("framework", OpenTelemetryExtensions.Framework); 45 | activity!.SetTag("mensagem", OpenTelemetryExtensions.Local); 46 | 47 | return new () 48 | { 49 | ValorAtual = valorAtualContador, 50 | Producer = OpenTelemetryExtensions.Local, 51 | Kernel = OpenTelemetryExtensions.Kernel, 52 | Framework = OpenTelemetryExtensions.Framework, 53 | Mensagem = OpenTelemetryExtensions.Local 54 | }; 55 | } 56 | } -------------------------------------------------------------------------------- /Redis/APIContagem/Logging/ContagemLogging.cs: -------------------------------------------------------------------------------- 1 | namespace APIContagem.Logging; 2 | 3 | public static partial class ContagemLogging 4 | { 5 | [LoggerMessage(EventId = 1, Level = LogLevel.Information, 6 | Message = "Contador - Valor atual: {valorAtual}")] 7 | public static partial void LogValorAtual( 8 | this ILogger logger, int valorAtual); 9 | } -------------------------------------------------------------------------------- /Redis/APIContagem/Models/ResultadoContador.cs: -------------------------------------------------------------------------------- 1 | namespace APIContagem.Models; 2 | 3 | public class ResultadoContador 4 | { 5 | public int ValorAtual { get; set; } 6 | public string? Producer { get; set; } 7 | public string? Kernel { get; set; } 8 | public string? Framework { get; set; } 9 | public string? Mensagem { get; set; } 10 | } -------------------------------------------------------------------------------- /Redis/APIContagem/Program.cs: -------------------------------------------------------------------------------- 1 | using OpenTelemetry.Resources; 2 | using OpenTelemetry.Trace; 3 | using StackExchange.Redis; 4 | using APIContagem.Tracing; 5 | 6 | var builder = WebApplication.CreateBuilder(args); 7 | 8 | builder.Services.AddControllers(); 9 | builder.Services.AddEndpointsApiExplorer(); 10 | builder.Services.AddSwaggerGen(); 11 | 12 | using var connectionRedis = ConnectionMultiplexer.Connect( 13 | builder.Configuration.GetConnectionString("Redis")); 14 | builder.Services.AddSingleton(connectionRedis); 15 | 16 | // Documentacao do OpenTelemetry: 17 | // https://opentelemetry.io/docs/instrumentation/net/getting-started/ 18 | 19 | // Integracaoo do OpenTelemetry com Jaeger: 20 | // https://opentelemetry.io/docs/instrumentation/net/exporters/ 21 | 22 | // Documentacaoo do Jaeger: 23 | // https://www.jaegertracing.io/docs/1.33/ 24 | 25 | builder.Services.AddOpenTelemetryTracing(traceProvider => 26 | { 27 | traceProvider 28 | .AddSource(OpenTelemetryExtensions.ServiceName) 29 | .SetResourceBuilder( 30 | ResourceBuilder.CreateDefault() 31 | .AddService(serviceName: OpenTelemetryExtensions.ServiceName, 32 | serviceVersion: OpenTelemetryExtensions.ServiceVersion)) 33 | .AddAspNetCoreInstrumentation() 34 | .AddRedisInstrumentation(connectionRedis, 35 | options => options.SetVerboseDatabaseStatements = true) 36 | .AddJaegerExporter(exporter => 37 | { 38 | exporter.AgentHost = builder.Configuration["Jaeger:AgentHost"]; 39 | exporter.AgentPort = Convert.ToInt32(builder.Configuration["Jaeger:AgentPort"]); 40 | }); 41 | }); 42 | 43 | var app = builder.Build(); 44 | 45 | if (app.Environment.IsDevelopment()) 46 | { 47 | app.UseSwagger(); 48 | app.UseSwaggerUI(); 49 | } 50 | 51 | app.UseHttpsRedirection(); 52 | 53 | app.UseAuthorization(); 54 | 55 | app.MapControllers(); 56 | 57 | app.Run(); -------------------------------------------------------------------------------- /Redis/APIContagem/Properties/launchSettings.json: -------------------------------------------------------------------------------- 1 | { 2 | "$schema": "https://json.schemastore.org/launchsettings.json", 3 | "iisSettings": { 4 | "windowsAuthentication": false, 5 | "anonymousAuthentication": true, 6 | "iisExpress": { 7 | "applicationUrl": "http://localhost:29570", 8 | "sslPort": 44305 9 | } 10 | }, 11 | "profiles": { 12 | "APIContagem": { 13 | "commandName": "Project", 14 | "dotnetRunMessages": true, 15 | "launchBrowser": true, 16 | "launchUrl": "swagger", 17 | "applicationUrl": "https://localhost:7117;http://localhost:5235", 18 | "environmentVariables": { 19 | "ASPNETCORE_ENVIRONMENT": "Development" 20 | } 21 | }, 22 | "IIS Express": { 23 | "commandName": "IISExpress", 24 | "launchBrowser": true, 25 | "launchUrl": "swagger", 26 | "environmentVariables": { 27 | "ASPNETCORE_ENVIRONMENT": "Development" 28 | } 29 | } 30 | } 31 | } 32 | -------------------------------------------------------------------------------- /Redis/APIContagem/Tracing/OpenTelemetryExtensions.cs: -------------------------------------------------------------------------------- 1 | using System.Diagnostics; 2 | using System.Runtime.InteropServices; 3 | 4 | namespace APIContagem.Tracing; 5 | 6 | public static class OpenTelemetryExtensions 7 | { 8 | public static string Local { get; } 9 | public static string Kernel { get; } 10 | public static string Framework { get; } 11 | public static string ServiceName { get; } 12 | public static string ServiceVersion { get; } 13 | 14 | static OpenTelemetryExtensions() 15 | { 16 | Local = "APIContagemRedis"; 17 | Kernel = Environment.OSVersion.VersionString; 18 | Framework = RuntimeInformation.FrameworkDescription; 19 | ServiceName = "APIContagemRedis"; 20 | ServiceVersion = typeof(OpenTelemetryExtensions).Assembly.GetName().Version!.ToString(); 21 | } 22 | 23 | public static ActivitySource CreateActivitySource() => 24 | new ActivitySource(ServiceName, ServiceVersion); 25 | } -------------------------------------------------------------------------------- /Redis/APIContagem/appsettings.Development.json: -------------------------------------------------------------------------------- 1 | { 2 | "Logging": { 3 | "LogLevel": { 4 | "Default": "Information", 5 | "Microsoft.AspNetCore": "Warning" 6 | } 7 | } 8 | } 9 | -------------------------------------------------------------------------------- /Redis/APIContagem/appsettings.json: -------------------------------------------------------------------------------- 1 | { 2 | "Jaeger": { 3 | "AgentHost": "localhost", 4 | "AgentPort": "6831" 5 | }, 6 | "ConnectionStrings": { 7 | "Redis": "localhost" 8 | }, 9 | "Logging": { 10 | "LogLevel": { 11 | "Default": "Information", 12 | "Microsoft.AspNetCore": "Warning" 13 | } 14 | }, 15 | "AllowedHosts": "*", 16 | "Kestrel": { 17 | "Endpoints": { 18 | "HTTP": { 19 | "Url": "http://localhost:6300" 20 | } 21 | } 22 | } 23 | } -------------------------------------------------------------------------------- /Scripts-SqlServer/BaseContagemKafka.sql: -------------------------------------------------------------------------------- 1 | CREATE DATABASE BaseContagemKafka 2 | GO 3 | 4 | USE BaseContagemKafka 5 | GO 6 | 7 | CREATE TABLE dbo.HistoricoContagem( 8 | Id INT IDENTITY(1,1) NOT NULL, 9 | DataProcessamento DATETIME NOT NULL, 10 | ValorAtual INT NOT NULL, 11 | TopicName VARCHAR(120) NOT NULL, 12 | Producer VARCHAR(120) NOT NULL, 13 | Consumer VARCHAR(120) NOT NULL, 14 | PartitionNumber INT NOT NULL, 15 | Mensagem VARCHAR(500) NOT NULL, 16 | Kernel VARCHAR(80) NOT NULL, 17 | Framework VARCHAR(80) NOT NULL, 18 | CONSTRAINT PK_HistoricoContagem PRIMARY KEY (Id) 19 | ) 20 | GO -------------------------------------------------------------------------------- /WorkerContagem/.vscode/launch.json: -------------------------------------------------------------------------------- 1 | { 2 | "version": "0.2.0", 3 | "configurations": [ 4 | { 5 | // Use IntelliSense to find out which attributes exist for C# debugging 6 | // Use hover for the description of the existing attributes 7 | // For further information visit https://github.com/OmniSharp/omnisharp-vscode/blob/master/debugger-launchjson.md 8 | "name": ".NET Core Launch (console)", 9 | "type": "coreclr", 10 | "request": "launch", 11 | "preLaunchTask": "build", 12 | // If you have changed target frameworks, make sure to update the program path. 13 | "program": "${workspaceFolder}/bin/Debug/net6.0/WorkerContagem.dll", 14 | "args": [], 15 | "cwd": "${workspaceFolder}", 16 | // For more information about the 'console' field, see https://aka.ms/VSCode-CS-LaunchJson-Console 17 | "console": "internalConsole", 18 | "stopAtEntry": false 19 | }, 20 | { 21 | "name": ".NET Core Attach", 22 | "type": "coreclr", 23 | "request": "attach" 24 | } 25 | ] 26 | } -------------------------------------------------------------------------------- /WorkerContagem/.vscode/tasks.json: -------------------------------------------------------------------------------- 1 | { 2 | "version": "2.0.0", 3 | "tasks": [ 4 | { 5 | "label": "build", 6 | "command": "dotnet", 7 | "type": "process", 8 | "args": [ 9 | "build", 10 | "${workspaceFolder}/WorkerContagem.csproj", 11 | "/property:GenerateFullPaths=true", 12 | "/consoleloggerparameters:NoSummary" 13 | ], 14 | "problemMatcher": "$msCompile" 15 | }, 16 | { 17 | "label": "publish", 18 | "command": "dotnet", 19 | "type": "process", 20 | "args": [ 21 | "publish", 22 | "${workspaceFolder}/WorkerContagem.csproj", 23 | "/property:GenerateFullPaths=true", 24 | "/consoleloggerparameters:NoSummary" 25 | ], 26 | "problemMatcher": "$msCompile" 27 | }, 28 | { 29 | "label": "watch", 30 | "command": "dotnet", 31 | "type": "process", 32 | "args": [ 33 | "watch", 34 | "run", 35 | "${workspaceFolder}/WorkerContagem.csproj", 36 | "/property:GenerateFullPaths=true", 37 | "/consoleloggerparameters:NoSummary" 38 | ], 39 | "problemMatcher": "$msCompile" 40 | } 41 | ] 42 | } -------------------------------------------------------------------------------- /WorkerContagem/Data/ContagemRepository.cs: -------------------------------------------------------------------------------- 1 | using Microsoft.Data.SqlClient; 2 | using Dapper.Contrib.Extensions; 3 | using WorkerContagem.Models; 4 | 5 | namespace WorkerContagem.Data; 6 | 7 | public class ContagemRepository 8 | { 9 | private readonly IConfiguration _configuration; 10 | 11 | public ContagemRepository(IConfiguration configuration) 12 | { 13 | _configuration = configuration; 14 | } 15 | 16 | public void Save(ResultadoContador resultado, int partition) 17 | { 18 | using var conexao = new SqlConnection( 19 | _configuration.GetConnectionString("BaseContagem")); 20 | conexao.Insert(new() 21 | { 22 | DataProcessamento = DateTime.UtcNow.AddHours(-3), // Horário padrão do Brasil 23 | ValorAtual = resultado.ValorAtual, 24 | Producer = resultado.Producer, 25 | Consumer = Environment.MachineName, 26 | TopicName = _configuration["ApacheKafka:Topic"], 27 | PartitionNumber = partition, 28 | Mensagem = resultado.Mensagem, 29 | Kernel = resultado.Kernel, 30 | Framework = resultado.Framework 31 | }); 32 | } 33 | } -------------------------------------------------------------------------------- /WorkerContagem/Data/HistoricoContagem.cs: -------------------------------------------------------------------------------- 1 | using Dapper.Contrib.Extensions; 2 | 3 | namespace WorkerContagem.Data; 4 | 5 | [Table("dbo.HistoricoContagem")] 6 | public class HistoricoContagem 7 | { 8 | [Key] 9 | public int Id { get; set; } 10 | public DateTime DataProcessamento { get; set; } 11 | public int ValorAtual { get; set; } 12 | public string? TopicName { get; set; } 13 | public string? Producer { get; set; } 14 | public string? Consumer { get; set; } 15 | public int PartitionNumber { get; set; } 16 | public string? Mensagem { get; set; } 17 | public string? Kernel { get; set; } 18 | public string? Framework { get; set; } 19 | } -------------------------------------------------------------------------------- /WorkerContagem/Kafka/KafkaExtensions.cs: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/renatogroffe/DistributedTracing-OpenTelemetry-Jaeger-DotNet6-Kafka-SqlServer-Redis/55c9bab24564b1d450148e93b25cfa3959ec5143/WorkerContagem/Kafka/KafkaExtensions.cs -------------------------------------------------------------------------------- /WorkerContagem/Models/ResultadoContador.cs: -------------------------------------------------------------------------------- 1 | namespace WorkerContagem.Models; 2 | 3 | public class ResultadoContador 4 | { 5 | public int ValorAtual { get; set; } 6 | public string? Producer { get; set; } 7 | public string? Kernel { get; set; } 8 | public string? Framework { get; set; } 9 | public string? Mensagem { get; set; } 10 | } -------------------------------------------------------------------------------- /WorkerContagem/Program.cs: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/renatogroffe/DistributedTracing-OpenTelemetry-Jaeger-DotNet6-Kafka-SqlServer-Redis/55c9bab24564b1d450148e93b25cfa3959ec5143/WorkerContagem/Program.cs -------------------------------------------------------------------------------- /WorkerContagem/Properties/launchSettings.json: -------------------------------------------------------------------------------- 1 | { 2 | "profiles": { 3 | "WorkerContagem": { 4 | "commandName": "Project", 5 | "dotnetRunMessages": true, 6 | "environmentVariables": { 7 | "DOTNET_ENVIRONMENT": "Development" 8 | } 9 | } 10 | } 11 | } 12 | -------------------------------------------------------------------------------- /WorkerContagem/Tracing/OpenTelemetryExtensions.cs: -------------------------------------------------------------------------------- 1 | using System.Diagnostics; 2 | using System.Runtime.InteropServices; 3 | 4 | namespace WorkerContagem.Tracing; 5 | 6 | public static class OpenTelemetryExtensions 7 | { 8 | public static string Local { get; } 9 | public static string Kernel { get; } 10 | public static string Framework { get; } 11 | public static string ServiceName { get; } 12 | public static string ServiceVersion { get; } 13 | 14 | static OpenTelemetryExtensions() 15 | { 16 | Local = Environment.MachineName; 17 | Kernel = Environment.OSVersion.VersionString; 18 | Framework = RuntimeInformation.FrameworkDescription; 19 | ServiceName = typeof(OpenTelemetryExtensions).Assembly.GetName().Name! + "Kafka"; 20 | ServiceVersion = typeof(OpenTelemetryExtensions).Assembly.GetName().Version!.ToString(); 21 | } 22 | 23 | public static ActivitySource CreateActivitySource() => 24 | new ActivitySource(ServiceName, ServiceVersion); 25 | } -------------------------------------------------------------------------------- /WorkerContagem/Worker.cs: -------------------------------------------------------------------------------- 1 | using System.Diagnostics; 2 | using System.Text; 3 | using System.Text.Json; 4 | using Confluent.Kafka; 5 | using Microsoft.Identity.Client; 6 | using OpenTelemetry; 7 | using OpenTelemetry.Context.Propagation; 8 | using WorkerContagem.Data; 9 | using WorkerContagem.Kafka; 10 | using WorkerContagem.Models; 11 | using WorkerContagem.Tracing; 12 | 13 | namespace WorkerContagem; 14 | 15 | public class Worker : BackgroundService 16 | { 17 | private readonly TextMapPropagator Propagator = Propagators.DefaultTextMapPropagator; 18 | 19 | private readonly ILogger _logger; 20 | private readonly IConfiguration _configuration; 21 | private readonly ContagemRepository _repository; 22 | private readonly string _topic; 23 | private readonly string _groupId; 24 | private readonly IConsumer _consumer; 25 | private readonly int _intervaloMensagemWorkerAtivo; 26 | 27 | public Worker(ILogger logger, 28 | IConfiguration configuration, 29 | ContagemRepository repository) 30 | { 31 | _logger = logger; 32 | _configuration = configuration; 33 | _repository = repository; 34 | _topic = _configuration["ApacheKafka:Topic"]; 35 | _groupId = _configuration["ApacheKafka:GroupId"]; 36 | _consumer = KafkaExtensions.CreateConsumer(_configuration); 37 | _intervaloMensagemWorkerAtivo = 38 | Convert.ToInt32(configuration["IntervaloMensagemWorkerAtivo"]); 39 | } 40 | 41 | protected override async Task ExecuteAsync(CancellationToken stoppingToken) 42 | { 43 | // Solução que serviu de base para a implementação deste exemplo: 44 | // https://github.com/open-telemetry/opentelemetry-dotnet/tree/main/examples/MicroserviceExample 45 | 46 | _logger.LogInformation($"Topic = {_topic}"); 47 | _logger.LogInformation($"Group Id = {_groupId}"); 48 | _logger.LogInformation("Aguardando mensagens..."); 49 | _consumer.Subscribe(_topic); 50 | 51 | while (!stoppingToken.IsCancellationRequested) 52 | { 53 | await Task.Run(() => 54 | { 55 | var result = _consumer.Consume(stoppingToken); 56 | 57 | // Extrai o PropagationContext de forma a identificar os message headers 58 | var parentContext = Propagator.Extract(default, result.Message.Headers, this.ExtractTraceContextFromHeaders); 59 | Baggage.Current = parentContext.Baggage; 60 | 61 | var messageContent = result.Message.Value; 62 | var partition = result.Partition.Value; 63 | 64 | // Semantic convention - OpenTelemetry messaging specification: 65 | // https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/semantic_conventions/messaging.md#span-name 66 | var activityName = $"{_topic} receive"; 67 | 68 | using var activity = OpenTelemetryExtensions.CreateActivitySource() 69 | .StartActivity(activityName, ActivityKind.Consumer, parentContext.ActivityContext); 70 | activity?.SetTag("message", messageContent); 71 | activity?.SetTag("messaging.system", "kafka"); 72 | activity?.SetTag("messaging.destination_kind", "topic"); 73 | activity?.SetTag("messaging.destination", _topic); 74 | activity?.SetTag("messaging.operation", "process"); 75 | activity?.SetTag("messaging.kafka.consumer_group", _groupId); 76 | activity?.SetTag("messaging.kafka.client_id", 77 | $"{nameof(WorkerContagem)}-{Environment.MachineName}"); 78 | activity?.SetTag("messaging.kafka.partition", partition); 79 | 80 | _logger.LogInformation( 81 | $"[{_topic} | {_groupId} | Nova mensagem] " + 82 | messageContent); 83 | 84 | ProcessarResultado(messageContent, partition); 85 | }); 86 | } 87 | } 88 | 89 | private void ProcessarResultado(string dados, int partition) 90 | { 91 | ResultadoContador? resultado; 92 | try 93 | { 94 | resultado = JsonSerializer.Deserialize(dados, 95 | new JsonSerializerOptions() 96 | { 97 | PropertyNameCaseInsensitive = true 98 | }); 99 | } 100 | catch 101 | { 102 | _logger.LogError("Dados inválidos para o Resultado"); 103 | resultado = null; 104 | } 105 | 106 | if (resultado is not null) 107 | { 108 | try 109 | { 110 | _repository.Save(resultado, partition); 111 | _logger.LogInformation("Resultado registrado com sucesso!"); 112 | } 113 | catch (Exception ex) 114 | { 115 | _logger.LogError($"Erro durante a gravacao: {ex.Message}"); 116 | } 117 | } 118 | } 119 | 120 | private IEnumerable ExtractTraceContextFromHeaders(Headers headers, string key) 121 | { 122 | try 123 | { 124 | var header = headers.FirstOrDefault(h => h.Key == key); 125 | if (header is not null) 126 | return new[] { Encoding.UTF8.GetString(header.GetValueBytes()) }; 127 | } 128 | catch (Exception ex) 129 | { 130 | _logger.LogError(ex, $"Falha durante a extração do trace context: {ex.Message}"); 131 | } 132 | 133 | return Enumerable.Empty(); 134 | } 135 | } -------------------------------------------------------------------------------- /WorkerContagem/WorkerContagem.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | net6.0 5 | enable 6 | enable 7 | dotnet-WorkerContagem-563B2A8A-F276-43F9-91E7-FF5958093DC4 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | -------------------------------------------------------------------------------- /WorkerContagem/WorkerContagem.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio Version 17 4 | VisualStudioVersion = 17.3.32611.2 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "WorkerContagem", "WorkerContagem.csproj", "{45DC86D5-EF3A-408D-B38D-DD20D4DBD30D}" 7 | EndProject 8 | Global 9 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 10 | Debug|Any CPU = Debug|Any CPU 11 | Release|Any CPU = Release|Any CPU 12 | EndGlobalSection 13 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 14 | {45DC86D5-EF3A-408D-B38D-DD20D4DBD30D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 15 | {45DC86D5-EF3A-408D-B38D-DD20D4DBD30D}.Debug|Any CPU.Build.0 = Debug|Any CPU 16 | {45DC86D5-EF3A-408D-B38D-DD20D4DBD30D}.Release|Any CPU.ActiveCfg = Release|Any CPU 17 | {45DC86D5-EF3A-408D-B38D-DD20D4DBD30D}.Release|Any CPU.Build.0 = Release|Any CPU 18 | EndGlobalSection 19 | GlobalSection(SolutionProperties) = preSolution 20 | HideSolutionNode = FALSE 21 | EndGlobalSection 22 | GlobalSection(ExtensibilityGlobals) = postSolution 23 | SolutionGuid = {FA3EEF70-8D1E-4092-AF7B-1832C3EE3DA7} 24 | EndGlobalSection 25 | EndGlobal 26 | -------------------------------------------------------------------------------- /WorkerContagem/appsettings.Development.json: -------------------------------------------------------------------------------- 1 | { 2 | "Logging": { 3 | "LogLevel": { 4 | "Default": "Information", 5 | "Microsoft.Hosting.Lifetime": "Information" 6 | } 7 | } 8 | } 9 | -------------------------------------------------------------------------------- /WorkerContagem/appsettings.json: -------------------------------------------------------------------------------- 1 | { 2 | "Jaeger": { 3 | "AgentHost": "localhost", 4 | "AgentPort": "6831" 5 | }, 6 | "ApacheKafka": { 7 | "Topic": "topic-contagem", 8 | "Host": "localhost:9092", 9 | "GroupId": "workercontagem", 10 | "Username": "", 11 | "Password": "" 12 | }, 13 | "ConnectionStrings": { 14 | "BaseContagem": "Server=localhost;Database=BaseContagemKafka;User Id=sa;Password=SqlServer2019!;TrustServerCertificate=True;" 15 | }, 16 | "Logging": { 17 | "LogLevel": { 18 | "Default": "Information", 19 | "Microsoft.Hosting.Lifetime": "Information" 20 | } 21 | } 22 | } --------------------------------------------------------------------------------