8d9b62daf3
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>
72 lines
2.2 KiB
Go
72 lines
2.2 KiB
Go
// Copyright The OpenTelemetry Authors
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// SPDX-License-Identifier: Apache-2.0
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package global // import "go.opentelemetry.io/otel/internal/global"
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import (
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"context"
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"sync"
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"go.opentelemetry.io/otel/propagation"
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)
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// textMapPropagator is a default TextMapPropagator that delegates calls to a
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// registered delegate if one is set, otherwise it defaults to delegating the
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// calls to a the default no-op propagation.TextMapPropagator.
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type textMapPropagator struct {
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mtx sync.Mutex
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once sync.Once
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delegate propagation.TextMapPropagator
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noop propagation.TextMapPropagator
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}
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// Compile-time guarantee that textMapPropagator implements the
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// propagation.TextMapPropagator interface.
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var _ propagation.TextMapPropagator = (*textMapPropagator)(nil)
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func newTextMapPropagator() *textMapPropagator {
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return &textMapPropagator{
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noop: propagation.NewCompositeTextMapPropagator(),
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}
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}
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// SetDelegate sets a delegate propagation.TextMapPropagator that all calls are
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// forwarded to. Delegation can only be performed once, all subsequent calls
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// perform no delegation.
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func (p *textMapPropagator) SetDelegate(delegate propagation.TextMapPropagator) {
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if delegate == nil {
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return
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}
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p.mtx.Lock()
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p.once.Do(func() { p.delegate = delegate })
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p.mtx.Unlock()
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}
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// effectiveDelegate returns the current delegate of p if one is set,
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// otherwise the default noop TextMapPropagator is returned. This method
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// can be called concurrently.
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func (p *textMapPropagator) effectiveDelegate() propagation.TextMapPropagator {
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p.mtx.Lock()
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defer p.mtx.Unlock()
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if p.delegate != nil {
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return p.delegate
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}
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return p.noop
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}
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// Inject set cross-cutting concerns from the Context into the carrier.
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func (p *textMapPropagator) Inject(ctx context.Context, carrier propagation.TextMapCarrier) {
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p.effectiveDelegate().Inject(ctx, carrier)
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}
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// Extract reads cross-cutting concerns from the carrier into a Context.
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func (p *textMapPropagator) Extract(ctx context.Context, carrier propagation.TextMapCarrier) context.Context {
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return p.effectiveDelegate().Extract(ctx, carrier)
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}
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// Fields returns the keys whose values are set with Inject.
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func (p *textMapPropagator) Fields() []string {
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return p.effectiveDelegate().Fields()
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}
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