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			This commit implements Phase 2 of the CHORUS Task Execution Engine development plan, providing a comprehensive execution environment abstraction layer with Docker container sandboxing support. ## New Features ### Core Sandbox Interface - Comprehensive ExecutionSandbox interface with isolated task execution - Support for command execution, file I/O, environment management - Resource usage monitoring and sandbox lifecycle management - Standardized error handling with SandboxError types and categories ### Docker Container Sandbox Implementation - Full Docker API integration with secure container creation - Transparent repository mounting with configurable read/write access - Advanced security policies with capability dropping and privilege controls - Comprehensive resource limits (CPU, memory, disk, processes, file handles) - Support for tmpfs mounts, masked paths, and read-only bind mounts - Container lifecycle management with proper cleanup and health monitoring ### Security & Resource Management - Configurable security policies with SELinux, AppArmor, and Seccomp support - Fine-grained capability management with secure defaults - Network isolation options with configurable DNS and proxy settings - Resource monitoring with real-time CPU, memory, and network usage tracking - Comprehensive ulimits configuration for process and file handle limits ### Repository Integration - Seamless repository mounting from local paths to container workspaces - Git configuration support with user credentials and global settings - File inclusion/exclusion patterns for selective repository access - Configurable permissions and ownership for mounted repositories ### Testing Infrastructure - Comprehensive test suite with 60+ test cases covering all functionality - Docker integration tests with Alpine Linux containers (skipped in short mode) - Mock sandbox implementation for unit testing without Docker dependencies - Security policy validation tests with read-only filesystem enforcement - Resource usage monitoring and cleanup verification tests ## Technical Details ### Dependencies Added - github.com/docker/docker v28.4.0+incompatible - Docker API client - github.com/docker/go-connections v0.6.0 - Docker connection utilities - github.com/docker/go-units v0.5.0 - Docker units and formatting - Associated Docker API dependencies for complete container management ### Architecture - Interface-driven design enabling multiple sandbox implementations - Comprehensive configuration structures for all sandbox aspects - Resource usage tracking with detailed metrics collection - Error handling with retryable error classification - Proper cleanup and resource management throughout sandbox lifecycle ### Compatibility - Maintains backward compatibility with existing CHORUS architecture - Designed for future integration with Phase 3 Core Task Execution Engine - Extensible design supporting additional sandbox implementations (VM, process) This Phase 2 implementation provides the foundation for secure, isolated task execution that will be integrated with the AI model providers from Phase 1 in the upcoming Phase 3 development. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
		
			
				
	
	
		
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			90 lines
		
	
	
		
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| # go-winio [](https://github.com/microsoft/go-winio/actions/workflows/ci.yml)
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| 
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| This repository contains utilities for efficiently performing Win32 IO operations in
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| Go. Currently, this is focused on accessing named pipes and other file handles, and
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| for using named pipes as a net transport.
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| 
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| This code relies on IO completion ports to avoid blocking IO on system threads, allowing Go
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| to reuse the thread to schedule another goroutine. This limits support to Windows Vista and
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| newer operating systems. This is similar to the implementation of network sockets in Go's net
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| package.
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| 
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| Please see the LICENSE file for licensing information.
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| 
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| ## Contributing
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| 
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| This project welcomes contributions and suggestions.
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| Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that
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| you have the right to, and actually do, grant us the rights to use your contribution.
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| For details, visit [Microsoft CLA](https://cla.microsoft.com).
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| 
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| When you submit a pull request, a CLA-bot will automatically determine whether you need to
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| provide a CLA and decorate the PR appropriately (e.g., label, comment).
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| Simply follow the instructions provided by the bot.
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| You will only need to do this once across all repos using our CLA.
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| 
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| Additionally, the pull request pipeline requires the following steps to be performed before
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| mergining.
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| 
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| ### Code Sign-Off
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| 
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| We require that contributors sign their commits using [`git commit --signoff`][git-commit-s]
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| to certify they either authored the work themselves or otherwise have permission to use it in this project.
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| 
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| A range of commits can be signed off using [`git rebase --signoff`][git-rebase-s].
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| 
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| Please see [the developer certificate](https://developercertificate.org) for more info,
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| as well as to make sure that you can attest to the rules listed.
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| Our CI uses the DCO Github app to ensure that all commits in a given PR are signed-off.
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| 
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| ### Linting
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| 
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| Code must pass a linting stage, which uses [`golangci-lint`][lint].
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| The linting settings are stored in [`.golangci.yaml`](./.golangci.yaml), and can be run
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| automatically with VSCode by adding the following to your workspace or folder settings:
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| 
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| ```json
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|     "go.lintTool": "golangci-lint",
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|     "go.lintOnSave": "package",
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| ```
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| 
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| Additional editor [integrations options are also available][lint-ide].
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| 
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| Alternatively, `golangci-lint` can be [installed locally][lint-install] and run from the repo root:
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| 
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| ```shell
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| # use . or specify a path to only lint a package
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| # to show all lint errors, use flags "--max-issues-per-linter=0 --max-same-issues=0"
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| > golangci-lint run ./...
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| ```
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| 
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| ### Go Generate
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| 
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| The pipeline checks that auto-generated code, via `go generate`, are up to date.
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| 
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| This can be done for the entire repo:
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| 
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| ```shell
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| > go generate ./...
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| ```
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| 
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| ## Code of Conduct
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| 
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| This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/).
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| For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or
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| contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional questions or comments.
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| 
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| ## Special Thanks
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| 
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| Thanks to [natefinch][natefinch] for the inspiration for this library.
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| See [npipe](https://github.com/natefinch/npipe) for another named pipe implementation.
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| 
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| [lint]: https://golangci-lint.run/
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| [lint-ide]: https://golangci-lint.run/usage/integrations/#editor-integration
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| [lint-install]: https://golangci-lint.run/usage/install/#local-installation
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| 
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| [git-commit-s]: https://git-scm.com/docs/git-commit#Documentation/git-commit.txt--s
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| [git-rebase-s]: https://git-scm.com/docs/git-rebase#Documentation/git-rebase.txt---signoff
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| 
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| [natefinch]: https://github.com/natefinch
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