110 lines
3.3 KiB
C#
110 lines
3.3 KiB
C#
var configuration = GetConfiguration();
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Log.Logger = CreateSerilogLogger(configuration);
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try
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{
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Log.Information("Configuring web host ({ApplicationContext})...", Program.AppName);
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var host = BuildWebHost(configuration, args);
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LogPackagesVersionInfo();
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Log.Information("Starting web host ({ApplicationContext})...", Program.AppName);
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host.Run();
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return 0;
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}
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catch (Exception ex)
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{
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Log.Fatal(ex, "Program terminated unexpectedly ({ApplicationContext})!", Program.AppName);
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return 1;
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}
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finally
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{
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Log.CloseAndFlush();
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}
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IWebHost BuildWebHost(IConfiguration configuration, string[] args) =>
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WebHost.CreateDefaultBuilder(args)
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.CaptureStartupErrors(false)
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.ConfigureAppConfiguration(x => x.AddConfiguration(configuration))
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.UseStartup<Startup>()
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.UseContentRoot(Directory.GetCurrentDirectory())
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.UseSerilog()
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.Build();
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Serilog.ILogger CreateSerilogLogger(IConfiguration configuration)
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{
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var seqServerUrl = configuration["Serilog:SeqServerUrl"];
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var logstashUrl = configuration["Serilog:LogstashgUrl"];
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return new LoggerConfiguration()
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.MinimumLevel.Verbose()
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.Enrich.WithProperty("ApplicationContext", Program.AppName)
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.Enrich.FromLogContext()
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.WriteTo.Console()
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.WriteTo.Seq(string.IsNullOrWhiteSpace(seqServerUrl) ? "http://seq" : seqServerUrl)
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.WriteTo.Http(string.IsNullOrWhiteSpace(logstashUrl) ? "http://logstash:8080" : logstashUrl, null)
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.ReadFrom.Configuration(configuration)
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.CreateLogger();
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}
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IConfiguration GetConfiguration()
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{
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var builder = new ConfigurationBuilder()
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.SetBasePath(Directory.GetCurrentDirectory())
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.AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
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.AddEnvironmentVariables();
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var config = builder.Build();
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if (config.GetValue<bool>("UseVault", false))
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{
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TokenCredential credential = new ClientSecretCredential(
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config["Vault:TenantId"],
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config["Vault:ClientId"],
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config["Vault:ClientSecret"]);
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builder.AddAzureKeyVault(new Uri($"https://{config["Vault:Name"]}.vault.azure.net/"), credential);
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}
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return builder.Build();
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}
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string GetVersion(Assembly assembly)
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{
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try
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{
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return $"{assembly.GetCustomAttribute<AssemblyFileVersionAttribute>()?.Version} ({assembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>()?.InformationalVersion.Split()[0]})";
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}
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catch
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{
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return string.Empty;
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}
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}
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void LogPackagesVersionInfo()
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{
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var assemblies = new List<Assembly>();
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foreach (var dependencyName in typeof(Program).Assembly.GetReferencedAssemblies())
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{
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try
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{
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// Try to load the referenced assembly...
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assemblies.Add(Assembly.Load(dependencyName));
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}
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catch
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{
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// Failed to load assembly. Skip it.
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}
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}
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var versionList = assemblies.Select(a => $"-{a.GetName().Name} - {GetVersion(a)}").OrderBy(value => value);
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Log.Logger.ForContext("PackageVersions", string.Join("\n", versionList)).Information("Package versions ({ApplicationContext})", Program.AppName);
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}
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public partial class Program
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{
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private static readonly string _namespace = typeof(Startup).Namespace;
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public static readonly string AppName = _namespace;
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} |