More Hanselminutes with Scott Hanselman episodes
Published 22 Jan 2026
Duration: 00:32:13
Docker introduces a sandbox feature using micro VMs to run coding agents securely and isolated from the host system.
Sandboxing is having a moment. As agents move from chat windows into terminals, repos, and production-adjacent workflows, the question is no longer Wh...
The podcast highlights Docker's new sandbox feature, which allows developers to run coding agents such as GitHub Copilot and Claude in a more secure and isolated environment than traditional Docker containers. This sandbox employs micro VMs to provide enhanced isolation while maintaining efficiency, enabling quick startup times and low memory usage. It limits the agents' access by restricting them to specific directories, preventing them from interacting with the host system, and blocking risky operations like accessing the Docker socket or modifying system files.
Despite these security measures, the podcast notes that the sandbox is not entirely risk-free; improper permissions can still lead to potential vulnerabilities. The main goal of the feature is to simplify security management and reduce setup complexity for developers, allowing them to use coding agents safely without affecting their local development environments. Future improvements include support for parallel container execution and the ability to reuse configurations, aiming to further enhance usability and security.
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