Add WithManagementPlugin() method for RabbitMQ management plugin

playground/TestShop/AppHost/Program.cs

@@ -15,6 +15,7 @@
 var rabbitMqPassword = builder.AddParameter("rabbitmq-password", secret: true);
 var messaging = builder.AddRabbitMQ("messaging", password: rabbitMqPassword)
                        .WithDataVolume()
+                       .WithManagementPlugin()
                        .PublishAsContainer();
 
 var basketService = builder.AddProject("basketservice", @"..\BasketService\BasketService.csproj")

src/Aspire.Hosting.RabbitMQ/RabbitMQBuilderExtensions.cs

@@ -2,6 +2,7 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 
 using Aspire.Hosting.ApplicationModel;
+using Aspire.Hosting.RabbitMQ;
 using Aspire.Hosting.Utils;
 
 namespace Aspire.Hosting;
@@ -12,8 +13,11 @@ namespace Aspire.Hosting;
 public static class RabbitMQBuilderExtensions
 {
     /// <summary>
-    /// Adds a RabbitMQ resource to the application. A container is used for local development.
+    /// Adds a RabbitMQ container to the application model.
     /// </summary>
+    /// <remarks>
+    /// The default image and tag are "rabbitmq" and "3".
+    /// </remarks>
     /// <param name="builder">The <see cref="IDistributedApplicationBuilder"/>.</param>
     /// <param name="name">The name of the resource. This name will be used as the connection string name when referenced in a dependency.</param>
     /// <param name="userName">The parameter used to provide the user name for the RabbitMQ resource. If <see langword="null"/> a default value will be used.</param>
@@ -30,14 +34,16 @@ public static IResourceBuilder<RabbitMQServerResource> AddRabbitMQ(this IDistrib
         var passwordParameter = password?.Resource ?? ParameterResourceBuilderExtensions.CreateDefaultPasswordParameter(builder, $"{name}-password", special: false);
 
         var rabbitMq = new RabbitMQServerResource(name, userName?.Resource, passwordParameter);
-        return builder.AddResource(rabbitMq)
-                      .WithEndpoint(hostPort: port, containerPort: 5672, name: RabbitMQServerResource.PrimaryEndpointName)
-                      .WithImage("rabbitmq", "3")
-                      .WithEnvironment(context =>
-                      {
-                          context.EnvironmentVariables["RABBITMQ_DEFAULT_USER"] = rabbitMq.UserNameReference;
-                          context.EnvironmentVariables["RABBITMQ_DEFAULT_PASS"] = rabbitMq.PasswordParameter;
-                      });
+        var rabbitmq = builder.AddResource(rabbitMq)
+                              .WithImage(RabbitMQContainerImageTags.Image, RabbitMQContainerImageTags.Tag)
+                              .WithEndpoint(hostPort: port, containerPort: 5672, name: RabbitMQServerResource.PrimaryEndpointName)
+                              .WithEnvironment(context =>
+                              {
+                                  context.EnvironmentVariables["RABBITMQ_DEFAULT_USER"] = rabbitMq.UserNameReference;
+                                  context.EnvironmentVariables["RABBITMQ_DEFAULT_PASS"] = rabbitMq.PasswordParameter;
+                              });
+
+        return rabbitmq;
     }
 
     /// <summary>
@@ -63,6 +69,115 @@ public static IResourceBuilder<RabbitMQServerResource> WithDataBindMount(this IR
         => builder.WithBindMount(source, "/var/lib/rabbitmq", isReadOnly)
                   .RunWithStableNodeName();
 
+    /// <summary>
+    /// Configures the RabbitMQ container resource to enable the RabbitMQ management plugin.
+    /// </summary>
+    /// <remarks>
+    /// This method only supports the default RabbitMQ container image and tags, e.g. <c>3</c>, <c>3.12-alpine</c>, <c>3.12.13-management-alpine</c>, etc.<br />
+    /// Calling this method on a resource configured with an unrecognized image registry, name, or tag will result in a <see cref="DistributedApplicationException"/> being thrown.
+    /// </remarks>
+    /// <param name="builder">The resource builder.</param>
+    /// <returns>The <see cref="IResourceBuilder{T}"/>.</returns>
+    /// <exception cref="DistributedApplicationException">Thrown when the current container image and tag do not match the defaults for <see cref="RabbitMQServerResource"/>.</exception>
+    public static IResourceBuilder<RabbitMQServerResource> WithManagementPlugin(this IResourceBuilder<RabbitMQServerResource> builder)
+    {
+        var handled = false;
+        var containerAnnotations = builder.Resource.Annotations.OfType<ContainerImageAnnotation>().ToList();
+
+        if (containerAnnotations.Count == 1
+            && containerAnnotations[0].Registry is null
+            && string.Equals(containerAnnotations[0].Image, RabbitMQContainerImageTags.Image, StringComparison.OrdinalIgnoreCase))
+        {
+            // Existing annotation is in a state we can update to enable the management plugin
+            // See tag details at https://hub.docker.com/_/rabbitmq
+
+            const string management = "-management";
+            const string alpine = "-alpine";
+
+            var annotation = containerAnnotations[0];
+            var existingTag = annotation.Tag;
+
+            if (string.IsNullOrEmpty(existingTag))
+            {
+                // Set to default tag with management
+                annotation.Tag = RabbitMQContainerImageTags.TagManagement;
+                handled = true;
+            }
+            else if (existingTag.EndsWith(management, StringComparison.OrdinalIgnoreCase)
+                     || existingTag.EndsWith($"{management}{alpine}", StringComparison.OrdinalIgnoreCase))
+            {
+                // Already using the management tag
+                handled = true;
+            }
+            else if (existingTag.EndsWith(alpine, StringComparison.OrdinalIgnoreCase)
+                     && existingTag.Length > alpine.Length)
+            {
+                // Transform tag like "3.12-alpine" to "3.12-management-alpine"
+                var tagPrefix = existingTag[..existingTag.IndexOf(alpine)];
+                annotation.Tag = $"{tagPrefix}{management}{alpine}";
+                handled = true;
+            }
+            else if (IsVersion(existingTag))
+            {
+                // Tag is in version format so just append "-management"
+                annotation.Tag = $"{existingTag}{management}";
+                handled = true;
+            }
+        }
+
+        if (handled)
+        {
+            builder.WithHttpEndpoint(containerPort: 15672, name: RabbitMQServerResource.ManagementEndpointName);
+            return builder;
+        }
+
+        throw new DistributedApplicationException($"Cannot configure the RabbitMQ resource '{builder.Resource.Name}' to enable the management plugin as it uses an unrecognized container image registry, name, or tag.");
+    }
+
+    private static bool IsVersion(string tag)
+    {
+        // Must not be empty or null
+        if (string.IsNullOrEmpty(tag))
+        {
+            return false;
+        }
+
+        // First char must be a digit
+        if (!char.IsAsciiDigit(tag[0]))
+        {
+            return false;
+        }
+
+        // Last char must be digit
+        if (!char.IsAsciiDigit(tag[^1]))
+        {
+            return false;
+        }
+
+        // If a single digit no more to check
+        if (tag.Length == 1)
+        {
+            return true;
+        }
+
+        // Skip first char as we already checked it's a digit
+        var lastCharIsDigit = true;
+        for (var i = 1; i < tag.Length; i++)
+        {
+            var c = tag[i];
+
+            if (!(char.IsAsciiDigit(c) || c == '.') // Interim chars must be digits or a period
+                || !lastCharIsDigit && c == '.') // '.' can only follow a digit
+            {
+                return false;
+            }
+
+            lastCharIsDigit = char.IsAsciiDigit(c);
+        }
+
+        return true;
+    }
+
     private static IResourceBuilder<RabbitMQServerResource> RunWithStableNodeName(this IResourceBuilder<RabbitMQServerResource> builder)
     {
         if (builder.ApplicationBuilder.ExecutionContext.IsRunMode)

src/Aspire.Hosting.RabbitMQ/RabbitMQContainerImageTags.cs

@@ -0,0 +1,11 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+namespace Aspire.Hosting.RabbitMQ;
+
+internal static class RabbitMQContainerImageTags
+{
+    public const string Image = "rabbitmq";
+    public const string Tag = "3";
+    public const string TagManagement = $"{Tag}-management";
+}

src/Aspire.Hosting.RabbitMQ/RabbitMQServerResource.cs

@@ -9,6 +9,7 @@ namespace Aspire.Hosting.ApplicationModel;
 public class RabbitMQServerResource : ContainerResource, IResourceWithConnectionString, IResourceWithEnvironment
 {
     internal const string PrimaryEndpointName = "tcp";
+    internal const string ManagementEndpointName = "management";
     private const string DefaultUserName = "guest";
 
     /// <summary>

src/Aspire.Hosting.Redis/RedisBuilderExtensions.cs

@@ -14,8 +14,11 @@ namespace Aspire.Hosting;
 public static class RedisBuilderExtensions
 {
     /// <summary>
-    /// Adds a Redis container to the application model. The default image is "redis" and tag is "latest". This version the package defaults to the 7.2.4 tag of the redis container image
+    /// Adds a Redis container to the application model.
     /// </summary>
+    /// <remarks>
+    /// The default image is "redis" and the tag is "7.2.4".
+    /// </remarks>
     /// <param name="builder">The <see cref="IDistributedApplicationBuilder"/>.</param>
     /// <param name="name">The name of the resource. This name will be used as the connection string name when referenced in a dependency.</param>
     /// <param name="port">The host port to bind the underlying container to.</param>