Microsoft’s new WSL Containers feature offers a potential alternative to Docker Desktop for development tasks, providing consistent performance and native GPU support despite being in early preview stages.

Key Points

• WSL Containers (wslc) creates a private virtual machine for every container, whereas Docker Desktop operates within a shared WSL utility VM.
• Performance testing shows wslc startup speeds are comparable to Docker Desktop, with consistent results due to the lack of inherited state.
• The feature supports Nvidia GPU acceleration via paravirtualization, allowing CUDA 12.4 images to function immediately on host systems.
• Current limitations include a lack of native Compose support, missing flags like --privileged, and potential RAM management issues where VMs persist after sessions end.
• Community tools like wslc-compose currently bridge the gap for multi-service deployments, though the feature lacks a native graphical interface for monitoring.

Why it Matters

This development signals a significant shift for Windows-based developers who seek a lightweight, integrated alternative to the resource-heavy Docker Desktop environment. While currently better suited for isolated testing than long-running infrastructure, the architecture demonstrates Microsoft's commitment to improving containerization workflows within the Windows Subsystem for Linux.