Question

我创建了一个简单的Azure函数，其目的是使用Serililog登录到Azure Blob存储。

当对Serilog接收器使用内联配置时，效果很好，创建接收器，并且Serilog高兴地写入Blob存储。

这有效：

Log.Logger = new LoggerConfiguration()
   .WriteTo.AzureBlobStorage(
           "STORAGEACCOUNT CONNECTION STRING", // <-- inline config
           LogEventLevel.Information,
           null,
           "{yyyy}/{MM}/{dd}/MyLogFile.txt")
   .CreateLogger();

问题是我想通过appsettings.json进行全部配置，但是当我尝试这样做时（都在模拟器和云中本地运行），它无法绑定接收器设置，并且导致其无法登录到Blog存储。

如果我进行调试，则可以看到配置值已按预期方式加载到configuration对象中，但它们 not 并未应用于日志配置。

这不起作用：

Log.Logger = new LoggerConfiguration()
   .ReadFrom.Configuration(configuration)
   .CreateLogger();

appsettings.json在以下片段中：

{

  "Serilog": {
    "MinimumLevel": {
      "Default": "Information",
      "Override": {
        "Microsoft": "Information"
      }
    },
    "WriteTo": [{
        "Name": "AzureBlobStorage",
        "Args": {
          "connectionString": " --- REPLACE WITH STORAGEACCOUNT BLOB CONNECTION STRING --- ",
          "formatter": "Serilog.Formatting.Compact.RenderedCompactJsonFormatter, Serilog.Formatting.Compact",
          "storageFileName": "{yyyy}/{MM}/{dd}/MyLogFile.txt",
          "retainedFileCountLimit": 31
        }
      }

    ],
    "Properties": {
      "Application": "int-test-logging",
      "Environment": "int"
    }
  }

}

我不确定自己做错了什么，但会有所帮助。以下github存储库包含实现以上两种方法的代码，并重现了此行为。 https://github.com/oneiltomlinson/AzureFunctionsLogging

Answer 1

只需添加

    "Using": [ "Serilog.Sinks.AzureBlobStorage" ] //under Serilog Config

它将起作用！

工作配置

{
    "Serilog": {
        "Using": [
            "Serilog.Sinks.AzureBlobStorage"
        ],
        "MinimumLevel": {
            "Default": "Information",
            "Override": {
                "Microsoft": "Information"
            }
        },
        "WriteTo": [
            {
                "Name": "AzureBlobStorage",
                "Args": {
                    "connectionString": " --- REPLACE WITH STORAGEACCOUNT BLOB CONNECTION STRING --- ",
                    "formatter": "Serilog.Formatting.Compact.RenderedCompactJsonFormatter, Serilog.Formatting.Compact",
                    "storageFileName": "{yyyy}/{MM}/{dd}/MyLogFile.txt",
                    "retainedFileCountLimit": 31
                }
            }
        ],
        "Properties": {
            "Application": "int-test-logging",
            "Environment": "int"
        }
    }
}

Answer 2

我遇到了同样的问题，即使已使用的接收器全部需要“使用”，也没有任何变化。这是我的配置文件（与Serilog部分差不多）：

      "Serilog": {
    "Using": [
      "Serilog.Sinks.RollingFile",
      "Serilog.Sinks.AzureTableStorage"
    ],
    "MinimumLevel": "Information",
    "Override": {
      "Microsoft": "Warning",
      "Microsoft.EntityFrameworkCore": "Information"
    },
    "WriteTo": [
      {
        "Name": "Logger",
        "Args": {
          "configureLogger": {
            "MinimumLevel": "Information",
            "WriteTo": [
              {
                "Name": "Console",
                "outputTemplate": "[{Timestamp:yyyy-MM-dd HH:mm:ss.fff}] [{Level:u3}] [TID:{ThreadId}] - {Message:lj}{NewLine}{Exception}"
              },
              {
                "Name": "Debug",
                "outputTemplate": "[{Timestamp:yyyy-MM-dd HH:mm:ss.fff}] [{Level:u3}] [TID:{ThreadId}] - {Message:lj}{NewLine}{Exception}"
              },
              {
                "Name": "AzureTableStorage",
                "Args": {
                  "storageTableName": "HeroFunctionsLogs",
                  "connectionString": "DefaultEndpointsProtocol=https;AccountName=herobugari;AccountKey=NYJcdoCg9mQxqbQaTUdIxOHYQGdcKAwMsuWwzDub29UweHR1c+wd6Sh3IDQNB+eCx3DAe/ccobxu67sJvqQB5g==",
                  "outputTemplate": "[{Timestamp:yyyy-MM-dd HH:mm:ss.fff}] [{Level:u3}] [TID:{ThreadId}] - {Message:lj}{NewLine}{Exception}",
                  "restrictedToMinimumLevel": "Information",
                  "writeInBatches": true,
                  "batchPostingLimit": 100
                }
              },
              {
                "Name": "RollingFile",
                "Args": {
                  "pathFormat": "logs\\Bulgari.Hero.Functions.log",
                  "retainedFileCountLimit": 10,
                  "buffered": true,
                  "flushToDiskInterval": 5,
                  "outputTemplate": "[{Timestamp:yyyy-MM-dd HH:mm:ss.fff}] [{Level:u3}] [TID:{ThreadId}] - {Message:lj}{NewLine}{Exception}"
                }
              }
            ],
            "Filter": [
              {
                "Name": "ByExcludingOnly",
                "Args": {
                  "expression": "SourceContext like '%Microsoft.EntityFrameworkCore%'"
                }
              }
            ]
          }
        }
      }
    ]
  }

，然后读取并尝试使用它的Startup.cs代码：

    var config = new ConfigurationBuilder()
            .SetBasePath(Environment.CurrentDirectory)
        .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
        .AddEnvironmentVariables().Build();
    // Registering Serilog provider
    logger = new LoggerConfiguration()
        //.WriteTo.Console()
        //.WriteTo.File("logs\\herofunctions.log", rollingInterval: RollingInterval.Day)
        .ReadFrom.Configuration(config)
        .CreateLogger();
    builder.Services.AddLogging(lb => lb.AddSerilog(logger));

记录器对象没有在问题中注册的“接收器”。

Answer 3

通过在local.settings.json中添加条目，我已经解决了完全相同的问题。

"Serilog:Using:0": "Serilog.Sinks.Console",
"Serilog:MinimumLevel": "Information",
"Serilog:Override:Microsoft": "Warning",
"Serilog:Override:System": "Warning",
"Serilog:WriteTo:Console:Name": "Console"

然后在StartUp.cs中：

var provider = builder.Services.BuildServiceProvider();
var config = provider.GetRequiredService<IConfiguration>();
Log.Logger = new LoggerConfiguration().ReadFrom.Configuration(config).CreateLogger();

然后该功能：

public class TestFunction
{
    private readonly ILogger _logger;
    public TestFunction()
    {
        _logger = Log.Logger;
    }

    [FunctionName("TestFunction")]
    public async Task<IActionResult> Run(
        [HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = null)] HttpRequest req)
    {
        _logger.Information("Hello");
        return new OkResult();
    }
}

}

我可以看到已注册的配置条目并记录了条目！

使用appsettings.json时Azure函数无法初始化Serilog Sink

3 个答案: