Proposal: Add SeaweedFS Integration (Hosting & Client) as an alternative to MinIO #1336

Overview

Is your feature request related to a problem? Please describe.

With the recent shifts in licensing and the deprecation of some older object storage components (such as MinIO becoming less viable for certain open-source/enterprise scenarios without strict AGPL compliance), there is a growing need for a highly performant, scalable, and flexible storage alternative in the .NET Aspire ecosystem.

SeaweedFS (https://github.com/seaweedfs/seaweedfs) is an excellent, highly scalable distributed file system that provides both a Native Filer API and an S3-compatible gateway. It is lightweight, extremely fast, and solves the need for a reliable object/file storage component.

Describe the solution you'd like

I propose adding a complete integration for SeaweedFS to the Community Toolkit, consisting of both Hosting and Client packages.

Hosting Integration (CommunityToolkit.Aspire.Hosting.SeaweedFS):
A robust resource builder that allows developers to easily spin up a SeaweedFS cluster and opt-in to the specific APIs they need:

• WithS3(): Enables the S3-Compatible API Gateway.
• WithFiler(): Enables the Native Filer API.
• WithDataVolume() / WithDataBindMount(): For state persistence.

Client Integration (CommunityToolkit.Aspire.SeaweedFS.Client):
Seamless dependency injection for consuming the cluster APIs:

• AddSeaweedFSS3Client(): Wires up the standard AWSSDK.S3 IAmazonS3 client securely to the Aspire container.
• AddSeaweedFSFilerClient(): Registers a strongly-typed HttpClient for ultra-fast native Filer API operations.
• Built-in Health Checks for both S3 and Filer endpoints.

Usage example

1. AppHost Configuration (Hosting):
Developers can spin up the cluster, opt-in to the S3 Gateway or Native Filer, and persist data using volumes:

var builder = DistributedApplication.CreateBuilder(args);

// Provisions SeaweedFS with S3 Gateway enabled (implicitly enables Filer for metadata)
var seaweedfs = builder.AddSeaweedFS("seaweedfs")
                       .WithS3()
                       .WithDataVolume();

builder.AddProject<Projects.ApiService>("apiservice")
       .WithReference(seaweedfs);

builder.Build().Run();

2. Consuming the APIs (Client):
In the consuming project, developers can easily inject the standard AWS S3 client or the strongly-typed Filer HTTP client. The integration handles the dynamic endpoints automatically.

var builder = WebApplication.CreateBuilder(args);

// Registers IAmazonS3 configured for the SeaweedFS S3 Gateway
builder.AddSeaweedFSS3Client("seaweedfs");

// Registers a strongly-typed HttpClient for native SeaweedFS Filer operations
builder.AddSeaweedFSFilerClient("seaweedfs");

Additional context

I have already fully implemented this feature locally to ensure it fits the .NET Aspire architectural guidelines. The implementation includes:

1. CommunityToolkit.Aspire.Hosting.SeaweedFS: AppHost resource builder with dynamic endpoint routing (WithS3, WithFiler, WithDataVolume, etc.).
2. CommunityToolkit.Aspire.SeaweedFS.Client: Dependency injection extensions for IAmazonS3 and SeaweedFSFilerClient, including built-in health checks.
3. Comprehensive Tests: Unit tests and E2E functional tests using AspireIntegrationTestFixture and Docker.
4. Example App: A fully working example demonstrating both S3 and Filer endpoints.

I am ready to open a Pull Request with all the code as soon as this proposal is evaluated!

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