Add overload to HealthChecks for configuring options

src/HealthChecks/HealthChecks/src/DependencyInjection/HealthCheckServiceCollectionExtensions.cs

@@ -1,6 +1,7 @@
 // Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
+using System;
 using Microsoft.Extensions.DependencyInjection.Extensions;
 using Microsoft.Extensions.Diagnostics.HealthChecks;
 using Microsoft.Extensions.Hosting;
@@ -12,6 +13,25 @@ namespace Microsoft.Extensions.DependencyInjection
     /// </summary>
     public static class HealthCheckServiceCollectionExtensions
     {
+        /// <summary>
+        /// Adds the <see cref="HealthCheckService"/> to the container, using the provided delegate to register
+        /// health checks.
+        /// </summary>
+        /// <param name="services">The <see cref="IServiceCollection"/> to add the <see cref="HealthCheckService"/> to.</param>
+        /// <param name="configureOptions">A delegate to configure the <see cref="HealthCheckServiceOptions"/>.</param>
+        /// <returns>An instance of <see cref="IHealthChecksBuilder"/> from which health checks can be registered.</returns>
+        public static IHealthChecksBuilder AddHealthChecks(this IServiceCollection services, Action<HealthCheckServiceOptions> configureOptions)
+        {
+            if (configureOptions == null)
+            {
+                throw new ArgumentNullException(nameof(configureOptions));
+            }
+
+            services.Configure(configureOptions);
+
+            return services.AddHealthChecks();
+        }
+
         /// <summary>
         /// Adds the <see cref="HealthCheckService"/> to the container, using the provided delegate to register
         /// health checks.

src/HealthChecks/HealthChecks/test/DependencyInjection/ServiceCollectionExtensionsTest.cs

@@ -6,6 +6,7 @@
 using System.Threading.Tasks;
 using Microsoft.Extensions.Diagnostics.HealthChecks;
 using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Options;
 using Xunit;
 
 namespace Microsoft.Extensions.DependencyInjection
@@ -42,6 +43,27 @@ public void AddHealthChecks_RegistersSingletonHealthCheckServiceIdempotently()
                 });
         }
 
+        [Fact]
+        public void AddHealthChecks_CallsConfigureOptions()
+        {
+            // Arrange
+            var isCalled = false;
+            var services = new ServiceCollection();
+            services.AddHealthChecks(options =>
+            {
+                isCalled = true;
+            });
+
+            var serviceProvider = services.BuildServiceProvider();
+            var options = serviceProvider.GetService<IOptions<HealthCheckServiceOptions>>();
+
+            // Act
+            _ = options?.Value;
+
+            // Assert
+            Assert.True(isCalled);
+        }
+
         [Fact] // see: https://github.com/dotnet/extensions/issues/639
         public void AddHealthChecks_RegistersPublisherService_WhenOtherHostedServicesRegistered()
         {