Add data volume to EventStore resource

src/Aspire/Aspire.Hosting.EventStore/EventStoreBuilderExtensions.cs

@@ -28,6 +28,15 @@ public static IResourceBuilder<EventStoreResource> AddEventStore(
             .WithEnvironment(context => ConfigureEventStoreContainer(context, eventStoreContainer));
     }
 
+    /// <summary>
+    /// Adds a named volume for the data folder to an EventStore container resource.
+    /// </summary>
+    /// <param name="builder">The resource builder.</param>
+    /// <param name="name">The name of the volume. Defaults to an auto-generated name based on the application and resource names.</param>
+    /// <returns>The <see cref="IResourceBuilder{T}"/>.</returns>
+    public static IResourceBuilder<EventStoreResource> WithDataVolume(this IResourceBuilder<EventStoreResource> builder, string? name = null)
+        => builder.WithVolume(name ?? "eventstore-volume-data", "/var/lib/eventstore");
+
     private static void ConfigureEventStoreContainer(EnvironmentCallbackContext context, EventStoreResource resource)
     {
         context.EnvironmentVariables.Add("EVENTSTORE_CLUSTER_SIZE", "1");

src/Aspire/NCafe.AppHost/Program.cs

@@ -1,7 +1,8 @@
 var builder = DistributedApplication.CreateBuilder(args);
 
-var eventStore = builder.AddEventStore("eventstore");
 var rabbitMq = builder.AddRabbitMQ("rabbitmq");
+var eventStore = builder.AddEventStore("eventstore")
+    .WithDataVolume();
 
 var adminProject = builder.AddProject<Projects.NCafe_Admin_Api>("admin-api")
     .WithReference(eventStore);