public static void UseSerilog(this IWebHostBuilder webBuilder, Action <LoggerConfigurationOptions> config = default)
{
var loggerOptions = new LoggerConfigurationOptions();
config?.Invoke(loggerOptions);
if (loggerOptions.ClearProviders)
{
webBuilder.ConfigureLogging(logger => logger.ClearProviders());
}
webBuilder.UseSerilog((ctx, loggerConfiguration) =>
{
var options = ctx.Configuration.GetOptions <SerilogOptions>(loggerOptions.SectionName);
Configure(options, loggerConfiguration, loggerOptions, ctx);
}, writeToProviders: true);
}
private static void Configure(SerilogOptions options, LoggerConfiguration config, LoggerConfigurationOptions configurationOptions, WebHostBuilderContext ctx)
{
if (configurationOptions.UseEnvironmentVariables)
{
options.ServiceName = TryGetEnvironmentVariable("SERVICE_POD_NAME");
options.FilePath = TryGetEnvironmentVariable("SERILOG_LOG_PATH");
}
else
{
ValidateOptions(new[] { options?.FilePath, options?.ServiceName });
}
config
.MinimumLevel.Override("Microsoft.AspNetCore", configurationOptions.OverrideDefaultLevelLog)
.MinimumLevel.Is(configurationOptions.MinimumLevelLog)
.Enrich.WithProperty("ServiceId", options.ServiceName)
.Enrich.WithProperty("Environment", ctx.HostingEnvironment.EnvironmentName)
.Enrich.FromLogContext()
.WriteTo.Console();
if (!configurationOptions.WriteToFile)
{
return;
}
var fileLogName = $"{options.ServiceName}_.log";
config.WriteTo.File(
new JsonFormatter(renderMessage: false),
Path.Combine(options.FilePath, fileLogName),
rollingInterval: RollingInterval.Day,
rollOnFileSizeLimit: true,
retainedFileCountLimit: 5,
fileSizeLimitBytes: 500_000_000,
shared: true,
flushToDiskInterval: TimeSpan.FromSeconds(1)
);
}
