Serilog does not send logs to Elasticsearch 8-CodePudding

I used ELK stack to log application errors, but Serilog does not log to elasticsearch.

The elasticsearch version that is used is 8.3.2.

Log configuration in program.cs:

builder.UseSerilog((hostBuilder, serviceProvider, loggerConfiguration) =>
{
    var appSettings = hostBuilder.Configuration.GetSection(nameof(AppSettings)).Get<AppSettings>();

    CreateBasicLoggerConfiguration(loggerConfiguration)
        .WriteTo.File(logPath, rollingInterval: RollingInterval.Hour)
        .WriteTo.Elasticsearch(new ElasticsearchSinkOptions(new Uri(appSettings.ElasticsearchSettings.Uri))
        {
            IndexFormat = $"َapp-logs-{environment.EnvironmentName.Replace(".","-")}-{DateTimeOffset.Now.LocalDateTime:yyyy-MM}",
            AutoRegisterTemplate = true
        });
});

And, elasticsearch setting in appsettings.json:

"ElasticsearchSettings": {
  "Uri" : "http://localhost:9200"
}

The following packages were added and used:

<PackageReference Include="Serilog.AspNetCore" Version="5.0.0" />
<PackageReference Include="Serilog.Enrichers.ClientInfo" Version="1.1.4" />
<PackageReference Include="Serilog.Enrichers.Environment" Version="2.2.0" />
<PackageReference Include="Serilog.Sinks.Elasticsearch" Version="8.4.1" />

Everything looks ok but there is no log in elastichsearch.

CodePudding user response：

This issue is because of the current version of Serilog.Sinks.Elasticsearch serilog sink is not supported elasticsearch version 8.*.

By default, so you need some more configuration. I recently faced this issue and wrote an article about it. I recommend reading that article and solving your problem.

Try the following config:

.WriteTo.Elasticsearch(new ElasticsearchSinkOptions(new Uri(appSettings.ElasticsearchSettings.Uri))
{
      IndexFormat = $"َapp-logs-{environment.EnvironmentName.Replace(".","-")}-{DateTimeOffset.Now.LocalDateTime:yyyy-MM}",
      AutoRegisterTemplate = true,
      OverwriteTemplate = true,
      TemplateName = yourTemplateName,
      AutoRegisterTemplateVersion = AutoRegisterTemplateVersion.ESv7,
      TypeName = null,
      BatchAction = ElasticOpType.Create
});

Article Link : How to integrate Serilog with Elasticsearch 8 Kibana