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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31 lines
1.7 KiB
Markdown
# Distribution reference
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Go library to handle references to container images.
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<img src="/distribution-logo.svg" width="200px" />
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[](https://github.com/distribution/reference/actions?query=workflow%3ACI)
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[](https://pkg.go.dev/github.com/distribution/reference)
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[](LICENSE)
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[](https://codecov.io/gh/distribution/reference)
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[](https://app.fossa.com/projects/custom%2B162%2Fgithub.com%2Fdistribution%2Freference?ref=badge_shield)
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This repository contains a library for handling references to container images held in container registries. Please see [godoc](https://pkg.go.dev/github.com/distribution/reference) for details.
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## Contribution
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Please see [CONTRIBUTING.md](CONTRIBUTING.md) for details on how to contribute
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issues, fixes, and patches to this project.
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## Communication
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For async communication and long running discussions please use issues and pull requests on the github repo.
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This will be the best place to discuss design and implementation.
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For sync communication we have a #distribution channel in the [CNCF Slack](https://slack.cncf.io/)
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that everyone is welcome to join and chat about development.
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## Licenses
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The distribution codebase is released under the [Apache 2.0 license](LICENSE).
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