public static IMetricsHostBuilder AddHealthChecks(this IMetricsHostBuilder builder, Action <IHealthCheckFactory> setupAction)
{
if (builder == null)
{
throw new ArgumentNullException(nameof(builder));
}
builder.Services.TryAddSingleton <HealthCheckMarkerService, HealthCheckMarkerService>();
HealthChecksAsServices.AddHealthChecksAsServices(builder.Services,
DefaultMetricsAssemblyDiscoveryProvider.DiscoverAssemblies(builder.Environment.ApplicationName));
builder.Services.Replace(ServiceDescriptor.Singleton <IHealthCheckFactory>(provider =>
{
var logFactory = provider.GetRequiredService <ILoggerFactory>();
var logger = logFactory.CreateLogger <HealthCheckFactory>();
var autoScannedHealthChecks = Enumerable.Empty <HealthCheck>();
try
{
autoScannedHealthChecks = provider.GetRequiredService <IEnumerable <HealthCheck> >();
}
catch (Exception ex)
{
logger.LogError(new EventId(5000), ex, "Failed to load autoscanned health checks, health checks won't be registered");
}
var factory = new HealthCheckFactory(logger, autoScannedHealthChecks);
setupAction?.Invoke(factory);
return(factory);
}));
return(builder);
}
/// <summary>
/// Scan the executing assembly and it's refererenced assemblies for health checks and automatically register them.
/// </summary>
/// <param name="healthCheckBuilder">The <see cref="IHealthBuilder" /> to add any found health checks.</param>
/// <param name="services">The <see cref="IServiceCollection" /> where found health checks should be registered.</param>
/// <param name="dependencyContext">
/// The dependency context from which health checks can be located. If not supplied, the platform
/// default will be used.
/// </param>
/// <returns>
/// An <see cref="IHealthBuilder" /> that can be used to further configure App Metrics Health.
/// </returns>
public static IHealthBuilder RegisterFromAssembly(
this IHealthCheckBuilder healthCheckBuilder,
IServiceCollection services,
DependencyContext dependencyContext = null)
{
HealthChecksAsServices.AddHealthChecksAsServices(services, HealthAssemblyDiscoveryProvider.DiscoverAssemblies(dependencyContext));
return(healthCheckBuilder.Builder);
}
// ReSharper disable UnusedMethodReturnValue.Global
// ReSharper disable MemberCanBePrivate.Global
internal static IAppMetricsHealthChecksBuilder AddCoreServices(this IAppMetricsHealthChecksBuilder checksBuilder)
// ReSharper restore MemberCanBePrivate.Global
// ReSharper restore UnusedMethodReturnValue.Global
{
HealthChecksAsServices.AddHealthChecksAsServices(
checksBuilder.Services,
DefaultMetricsAssemblyDiscoveryProvider.DiscoverAssemblies(checksBuilder.Environment.ApplicationName));
checksBuilder.Services.TryAddSingleton <IProvideHealth, DefaultHealthProvider>();
return(checksBuilder);
}
public static IMetricsBuilder AddHealthChecks(this IMetricsBuilder builder)
{
if (builder == null)
{
throw new ArgumentNullException(nameof(builder));
}
var environment = GetServiceFromCollection <IHostingEnvironment>(builder.Services);
if (environment == null)
{
return(builder);
}
HealthChecksAsServices.AddHealthChecksAsServices(builder.Services,
DefaultMetricsAssemblyDiscoveryProvider.DiscoverAssemblies(environment.ApplicationName));
return(builder);
}
public static IMetricsHostBuilder AddHealthChecks(this IMetricsHostBuilder builder, Action <IHealthCheckFactory> setupAction)
{
if (builder == null)
{
throw new ArgumentNullException(nameof(builder));
}
builder.Services.TryAddSingleton <HealthCheckMarkerService, HealthCheckMarkerService>();
HealthChecksAsServices.AddHealthChecksAsServices(builder.Services,
DefaultMetricsAssemblyDiscoveryProvider.DiscoverAssemblies(builder.Environment.ApplicationName));
builder.Services.TryAddTransient <IHealthCheckFactory>(provider =>
{
var autoScannedHealthChecks = provider.GetRequiredService <IEnumerable <HealthCheck> >();
var logFactory = provider.GetRequiredService <ILoggerFactory>();
var logger = logFactory.CreateLogger <HealthCheckFactory>();
var factory = new HealthCheckFactory(logger, autoScannedHealthChecks);
setupAction?.Invoke(factory);
return(factory);
});
return(builder);
}
