WaitFor for Azure Storage

playground/AzureStorageEndToEnd/AzureStorageEndToEnd.ApiService/AzureStorageEndToEnd.ApiService.csproj

@@ -8,6 +8,7 @@
 
   <ItemGroup>
     <AspireProjectOrPackageReference Include="Aspire.Azure.Storage.Blobs" />
+    <AspireProjectOrPackageReference Include="Aspire.Azure.Storage.Queues" />
     <ProjectReference Include="..\..\Playground.ServiceDefaults\Playground.ServiceDefaults.csproj" />
   </ItemGroup>
 

playground/AzureStorageEndToEnd/AzureStorageEndToEnd.ApiService/Program.cs

@@ -2,17 +2,19 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 
 using Azure.Storage.Blobs;
+using Azure.Storage.Queues;
 
 var builder = WebApplication.CreateBuilder(args);
 
 builder.AddServiceDefaults();
 
 builder.AddAzureBlobClient("blobs");
+builder.AddAzureQueueClient("queues");
 
 var app = builder.Build();
 
 app.MapDefaultEndpoints();
-app.MapGet("/", async (BlobServiceClient bsc) =>
+app.MapGet("/", async (BlobServiceClient bsc, QueueServiceClient qsc) =>
 {
     var container = bsc.GetBlobContainerClient("mycontainer");
     await container.CreateIfNotExistsAsync();
@@ -29,6 +31,10 @@
         blobNames.Add(blob.Name);
     }
 
+    var queue = qsc.GetQueueClient("myqueue");
+    await queue.CreateIfNotExistsAsync();
+    await queue.SendMessageAsync("Hello, world!");
+
     return blobNames;
 });
 

playground/AzureStorageEndToEnd/AzureStorageEndToEnd.AppHost/Program.cs

@@ -1,5 +1,6 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
+
 var builder = DistributedApplication.CreateBuilder(args);
 
 var storage = builder.AddAzureStorage("storage").RunAsEmulator(container =>
@@ -8,10 +9,12 @@
 });
 
 var blobs = storage.AddBlobs("blobs");
+var queues = storage.AddQueues("queues");
 
 builder.AddProject<Projects.AzureStorageEndToEnd_ApiService>("api")
        .WithExternalHttpEndpoints()
-       .WithReference(blobs);
+       .WithReference(blobs).WaitFor(blobs)
+       .WithReference(queues).WaitFor(queues);
 
 #if !SKIP_DASHBOARD_REFERENCE
 // This project is only added in playground projects to support development/debugging

playground/mongo/Mongo.ApiService/Program.cs

@@ -8,7 +8,7 @@
 var builder = WebApplication.CreateBuilder(args);
 
 builder.AddServiceDefaults();
-builder.AddMongoDBClient("mongo");
+builder.AddMongoDBClient("db");
 
 var app = builder.Build();
 

playground/mongo/Mongo.AppHost/Program.cs

@@ -5,7 +5,7 @@
 
 var db = builder.AddMongoDB("mongo")
     .WithMongoExpress(c => c.WithHostPort(3022))
-    .PublishAsContainer();
+    .AddDatabase("db");
 
 builder.AddProject<Projects.Mongo_ApiService>("api")
        .WithExternalHttpEndpoints()

src/Aspire.Hosting.Azure.CosmosDB/AzureCosmosDBExtensions.cs

@@ -108,52 +108,9 @@ public static IResourceBuilder<AzureCosmosDBResource> AddAzureCosmosDB(this IDis
         };
 
         var resource = new AzureCosmosDBResource(name, configureConstruct);
-
-        CosmosClient? cosmosClient = null;
-
-        builder.Eventing.Subscribe<ConnectionStringAvailableEvent>(resource, async (@event, ct) =>
-        {
-            var connectionString = await resource.ConnectionStringExpression.GetValueAsync(ct).ConfigureAwait(false);
-
-            if (connectionString == null)
-            {
-                throw new DistributedApplicationException($"ConnectionStringAvailableEvent was published for the '{resource.Name}' resource but the connection string was null.");
-            }
-
-            cosmosClient = CreateCosmosClient(connectionString);
-        });
-
-        var healthCheckKey = $"{name}_check";
-        builder.Services.AddHealthChecks().AddAzureCosmosDB(sp =>
-        {
-            return cosmosClient ?? throw new InvalidOperationException("CosmosClient is not initialized.");
-        }, name: healthCheckKey);
-
         return builder.AddResource(resource)
                       .WithParameter(AzureBicepResource.KnownParameters.KeyVaultName)
-                      .WithManifestPublishingCallback(resource.WriteToManifest)
-                      .WithHealthCheck(healthCheckKey);
-
-        static CosmosClient CreateCosmosClient(string connectionString)
-        {
-            var clientOptions = new CosmosClientOptions();
-            clientOptions.CosmosClientTelemetryOptions.DisableDistributedTracing = true;
-
-            if (Uri.TryCreate(connectionString, UriKind.Absolute, out var uri))
-            {
-                return new CosmosClient(uri.OriginalString, new DefaultAzureCredential(), clientOptions);
-            }
-            else
-            {
-                if (CosmosUtils.IsEmulatorConnectionString(connectionString))
-                {
-                    clientOptions.ConnectionMode = ConnectionMode.Gateway;
-                    clientOptions.LimitToEndpoint = true;
-                }
-
-                return new CosmosClient(connectionString, clientOptions);
-            }
-        }
+                      .WithManifestPublishingCallback(resource.WriteToManifest);
     }
 
     /// <summary>
@@ -182,6 +139,28 @@ public static IResourceBuilder<AzureCosmosDBResource> RunAsEmulator(this IResour
                    Tag = "latest"
                });
 
+        CosmosClient? cosmosClient = null;
+
+        builder.ApplicationBuilder.Eventing.Subscribe<ConnectionStringAvailableEvent>(builder.Resource, async (@event, ct) =>
+        {
+            var connectionString = await builder.Resource.ConnectionStringExpression.GetValueAsync(ct).ConfigureAwait(false);
+
+            if (connectionString == null)
+            {
+                throw new DistributedApplicationException($"ConnectionStringAvailableEvent was published for the '{builder.Resource.Name}' resource but the connection string was null.");
+            }
+
+            cosmosClient = CreateCosmosClient(connectionString);
+        });
+
+        var healthCheckKey = $"{builder.Resource.Name}_check";
+        builder.ApplicationBuilder.Services.AddHealthChecks().AddAzureCosmosDB(sp =>
+        {
+            return cosmosClient ?? throw new InvalidOperationException("CosmosClient is not initialized.");
+        }, name: healthCheckKey);
+
+        builder.WithHealthCheck(healthCheckKey);
+
         if (configureContainer != null)
         {
             var surrogate = new AzureCosmosDBEmulatorResource(builder.Resource);
@@ -190,6 +169,27 @@ public static IResourceBuilder<AzureCosmosDBResource> RunAsEmulator(this IResour
         }
 
         return builder;
+
+        static CosmosClient CreateCosmosClient(string connectionString)
+        {
+            var clientOptions = new CosmosClientOptions();
+            clientOptions.CosmosClientTelemetryOptions.DisableDistributedTracing = true;
+
+            if (Uri.TryCreate(connectionString, UriKind.Absolute, out var uri))
+            {
+                return new CosmosClient(uri.OriginalString, new DefaultAzureCredential(), clientOptions);
+            }
+            else
+            {
+                if (CosmosUtils.IsEmulatorConnectionString(connectionString))
+                {
+                    clientOptions.ConnectionMode = ConnectionMode.Gateway;
+                    clientOptions.LimitToEndpoint = true;
+                }
+
+                return new CosmosClient(connectionString, clientOptions);
+            }
+        }
     }
 
     /// <summary>

src/Aspire.Hosting.Azure.Storage/Aspire.Hosting.Azure.Storage.csproj

@@ -16,6 +16,10 @@
     <Compile Include="$(SharedDir)VolumeNameGenerator.cs" Link="Utils\VolumeNameGenerator.cs" />
   </ItemGroup>
 
+  <ItemGroup>
+    <PackageReference Include="AspNetCore.HealthChecks.Azure.Storage.Blobs" />
+  </ItemGroup>
+
   <ItemGroup>
     <ProjectReference Include="..\Aspire.Hosting.Azure\Aspire.Hosting.Azure.csproj" />
     <PackageReference Include="Azure.Provisioning" />

src/Aspire.Hosting.Azure.Storage/AzureStorageExtensions.cs

@@ -6,8 +6,11 @@
 using Aspire.Hosting.Azure;
 using Aspire.Hosting.Azure.Storage;
 using Aspire.Hosting.Utils;
+using Azure.Identity;
 using Azure.Provisioning;
 using Azure.Provisioning.Storage;
+using Azure.Storage.Blobs;
+using Microsoft.Extensions.DependencyInjection;
 
 namespace Aspire.Hosting;
 
@@ -115,6 +118,29 @@ public static IResourceBuilder<AzureStorageResource> RunAsEmulator(this IResourc
                    Tag = StorageEmulatorContainerImageTags.Tag
                });
 
+        BlobServiceClient? blobServiceClient = null;
+
+        builder.ApplicationBuilder.Eventing.Subscribe<BeforeResourceStartedEvent>(builder.Resource, async (@event, ct) =>
+        {
+            var connectionString = await builder.Resource.GetBlobConnectionString().GetValueAsync(ct).ConfigureAwait(false);
+
+            if (connectionString == null)
+            {
+                throw new DistributedApplicationException($"ConnectionStringAvailableEvent was published for the '{builder.Resource.Name}' resource but the connection string was null.");
+            }
+
+            blobServiceClient = CreateBlobServiceClient(connectionString);
+        });
+
+        var healthCheckKey = $"{builder.Resource.Name}_check";
+
+        builder.ApplicationBuilder.Services.AddHealthChecks().AddAzureBlobStorage(sp =>
+        {
+            return blobServiceClient ?? throw new InvalidOperationException("BlobServiceClient is not initialized.");
+        }, name: healthCheckKey);
+
+        builder.WithHealthCheck(healthCheckKey);
+
         if (configureContainer != null)
         {
             var surrogate = new AzureStorageEmulatorResource(builder.Resource);
@@ -123,6 +149,18 @@ public static IResourceBuilder<AzureStorageResource> RunAsEmulator(this IResourc
         }
 
         return builder;
+
+        static BlobServiceClient CreateBlobServiceClient(string connectionString)
+        {
+            if (Uri.TryCreate(connectionString, UriKind.Absolute, out var uri))
+            {
+                return new BlobServiceClient(uri, new DefaultAzureCredential());
+            }
+            else
+            {
+                return new BlobServiceClient(connectionString);
+            }
+        }
     }
 
     /// <summary>
@@ -196,7 +234,6 @@ public static IResourceBuilder<AzureStorageEmulatorResource> WithTablePort(this
     public static IResourceBuilder<AzureBlobStorageResource> AddBlobs(this IResourceBuilder<AzureStorageResource> builder, [ResourceName] string name)
     {
         var resource = new AzureBlobStorageResource(name, builder.Resource);
-
         return builder.ApplicationBuilder.AddResource(resource);
     }
 
@@ -209,7 +246,6 @@ public static IResourceBuilder<AzureBlobStorageResource> AddBlobs(this IResource
     public static IResourceBuilder<AzureTableStorageResource> AddTables(this IResourceBuilder<AzureStorageResource> builder, [ResourceName] string name)
     {
         var resource = new AzureTableStorageResource(name, builder.Resource);
-
         return builder.ApplicationBuilder.AddResource(resource);
     }
 
@@ -222,7 +258,6 @@ public static IResourceBuilder<AzureTableStorageResource> AddTables(this IResour
     public static IResourceBuilder<AzureQueueStorageResource> AddQueues(this IResourceBuilder<AzureStorageResource> builder, [ResourceName] string name)
     {
         var resource = new AzureQueueStorageResource(name, builder.Resource);
-
         return builder.ApplicationBuilder.AddResource(resource);
     }
 }

src/Aspire.Hosting.Azure/Provisioning/Provisioners/AzureProvisioner.cs

@@ -68,6 +68,8 @@ IDistributedApplicationEventing eventing
         return azureResources;
     }
 
+    private ILookup<IResource, IResourceWithParent>? _parentChildLookup;
+
     public async Task BeforeStartAsync(DistributedApplicationModel appModel, CancellationToken cancellationToken = default)
     {
         var azureResources = GetAzureResourcesFromAppModel(appModel);
@@ -92,8 +94,15 @@ public async Task BeforeStartAsync(DistributedApplicationModel appModel, Cancell
             return;
         }
 
-        // Create a map of parents to their children used to propagate state changes later.
-        var parentChildLookup = appModel.Resources.OfType<IResourceWithParent>().ToLookup(r => r.Parent);
+        static IResource? SelectParentResource(IResource resource) => resource switch
+        {
+            IAzureResource ar => ar,
+            IResourceWithParent rp => SelectParentResource(rp.Parent),
+            _ => null
+        };
+
+        // Create a map of parents to their children used to propogate state changes later.
+        _parentChildLookup = appModel.Resources.OfType<IResourceWithParent>().ToLookup(r => r.Parent);
 
         // Sets the state of the resource and all of its children
         async Task UpdateStateAsync((IResource Resource, IAzureResource AzureResource) resource, Func<CustomResourceSnapshot, CustomResourceSnapshot> stateFactory)
@@ -110,7 +119,7 @@ async Task UpdateStateAsync((IResource Resource, IAzureResource AzureResource) r
 
             // We basically want child resources to be moved into the same state as their parent resources whenever
             // there is a state update. This is done for us in DCP so we replicate the behavior here in the Azure Provisioner.
-            var childResources = parentChildLookup[resource.Resource];
+            var childResources = _parentChildLookup[resource.Resource];
             foreach (var child in childResources)
             {
                 await notificationService.PublishUpdateAsync(child, stateFactory).ConfigureAwait(false);
@@ -327,6 +336,15 @@ async Task PublishConnectionStringAvailableEventAsync()
         {
             var connectionStringAvailableEvent = new ConnectionStringAvailableEvent(resource.Resource, serviceProvider);
             await eventing.PublishAsync(connectionStringAvailableEvent, cancellationToken).ConfigureAwait(false);
+
+            if (_parentChildLookup![resource.Resource] is { } children)
+            {
+                foreach (var child in children.OfType<IResourceWithConnectionString>())
+                {
+                    var childConnectionStringAvailableEvent = new ConnectionStringAvailableEvent(child, serviceProvider);
+                    await eventing.PublishAsync(childConnectionStringAvailableEvent, cancellationToken).ConfigureAwait(false);
+                }
+            }
         }
     }
 

src/Aspire.Hosting.MongoDB/MongoDBBuilderExtensions.cs

@@ -101,6 +101,21 @@ public static IResourceBuilder<MongoDBDatabaseResource> AddDatabase(this IResour
         builder.Resource.AddDatabase(name, databaseName);
         var mongoDBDatabase = new MongoDBDatabaseResource(name, databaseName, builder.Resource);
 
+        string? connectionString = null;
+
+        builder.ApplicationBuilder.Eventing.Subscribe<ConnectionStringAvailableEvent>(mongoDBDatabase, async (@event, ct) =>
+        {
+            connectionString = await mongoDBDatabase.ConnectionStringExpression.GetValueAsync(ct).ConfigureAwait(false);
+
+            if (connectionString == null)
+            {
+                throw new DistributedApplicationException($"ConnectionStringAvailableEvent was published for the '{mongoDBDatabase.Name}' resource but the connection string was null.");
+            }
+        });
+
+        var healthCheckKey = $"{name}_check";
+        builder.ApplicationBuilder.Services.AddHealthChecks().AddMongoDb(sp => connectionString ?? throw new InvalidOperationException("Connection string is unavailable"), name: healthCheckKey);
+
         return builder.ApplicationBuilder
             .AddResource(mongoDBDatabase);
     }