asp.net core 日志记录到elk

关于ELK的安装大家可以参考ubuntu18 docker中部署ELK 和 caas/docker-elk ，

首先需要在ELK中创建一个index patterns

首先我们创建一个aspnetcore webapi项目

1.添加如下引用：

Serilog

Serilog.Sinks.ElasticSearch

Serilog.Extensions.Logging

2.修改appsettings.json文件：

{

  "Logging": {

    "LogLevel": {

      "Default": "Information",

      "System": "Information",

      "Microsoft": "Information"

    }

  },

  "AllowedHosts": "*",

  "ElasticConfiguration": {

    "Uri": "http://192.168.100.5:5000/"

  }

}

3.修改Startup.cs文件

  public Startup(IConfiguration configuration)

        {

            Configuration = configuration;

             var elasticUri = Configuration["ElasticConfiguration:Uri"];

            Log.Logger = new LoggerConfiguration().Enrich.FromLogContext().MinimumLevel.Debug() .WriteTo.Elasticsearch(

                new ElasticsearchSinkOptions(new Uri(elasticUri)) { MinimumLogEventLevel=LogEventLevel.Information,AutoRegisterTemplate=true,  })

                .CreateLogger();

        }

        public void ConfigureServices(IServiceCollection services)

        {

            services.AddLogging(loggingBuilder => loggingBuilder.AddSerilog(dispose: true));

            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);

        }

4.修改controller：

 ILogger<ValuesController> _logger;

        public ValuesController(ILogger<ValuesController> logger) {

            _logger = logger;

        }

        [HttpGet]

        public ActionResult<IEnumerable<string>> Get()

        {

            _logger.LogInformation($"oh hai there! : {DateTime.UtcNow}");

            try

            {

                throw new Exception("oops. i haz cause error in UR codez.");

            }

            catch (Exception ex)

            {

                _logger.LogCritical("ur app haz critical error", ex);

                _logger.LogError(ex, "ur code iz buggy.");

            }

            return new string[] { "value1", "value2" };

        }

5.运行项目然后在elk中验证

备注：网上关于elk的地址都是http://xxx:9200 （elasticsearch地址）, 我在测试的时候发现怎么都没有写入到elk，后来改为5000（Logstash的地址）就好了

参考：

Logging with ElasticSearch, Kibana, ASP.NET Core and Docker

thecarlo/elastic-kibana-netcore-serilog

巴特西

asp.net core 日志记录到elk

最新文章

热门文章