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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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			Go
		
	
	
	
	
	
			
		
		
	
	
			38 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| // Copyright The OpenTelemetry Authors
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| // SPDX-License-Identifier: Apache-2.0
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| 
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| package trace // import "go.opentelemetry.io/otel/trace"
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| 
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| import (
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| 	"context"
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| 
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| 	"go.opentelemetry.io/otel/trace/embedded"
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| )
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| 
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| // Tracer is the creator of Spans.
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| //
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| // Warning: Methods may be added to this interface in minor releases. See
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| // package documentation on API implementation for information on how to set
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| // default behavior for unimplemented methods.
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| type Tracer interface {
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| 	// Users of the interface can ignore this. This embedded type is only used
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| 	// by implementations of this interface. See the "API Implementations"
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| 	// section of the package documentation for more information.
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| 	embedded.Tracer
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| 
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| 	// Start creates a span and a context.Context containing the newly-created span.
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| 	//
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| 	// If the context.Context provided in `ctx` contains a Span then the newly-created
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| 	// Span will be a child of that span, otherwise it will be a root span. This behavior
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| 	// can be overridden by providing `WithNewRoot()` as a SpanOption, causing the
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| 	// newly-created Span to be a root span even if `ctx` contains a Span.
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| 	//
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| 	// When creating a Span it is recommended to provide all known span attributes using
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| 	// the `WithAttributes()` SpanOption as samplers will only have access to the
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| 	// attributes provided when a Span is created.
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| 	//
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| 	// Any Span that is created MUST also be ended. This is the responsibility of the user.
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| 	// Implementations of this API may leak memory or other resources if Spans are not ended.
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| 	Start(ctx context.Context, spanName string, opts ...SpanStartOption) (context.Context, Span)
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| }
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