Files
anthonyrawlins 8d9b62daf3 Phase 2: Implement Execution Environment Abstraction (v0.3.0)
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>
2025-09-25 14:28:08 +10:00

285 lines
13 KiB
Go

// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package metric // import "go.opentelemetry.io/otel/metric"
import (
"context"
"go.opentelemetry.io/otel/metric/embedded"
)
// MeterProvider provides access to named Meter instances, for instrumenting
// an application or package.
//
// Warning: Methods may be added to this interface in minor releases. See
// package documentation on API implementation for information on how to set
// default behavior for unimplemented methods.
type MeterProvider interface {
// Users of the interface can ignore this. This embedded type is only used
// by implementations of this interface. See the "API Implementations"
// section of the package documentation for more information.
embedded.MeterProvider
// Meter returns a new Meter with the provided name and configuration.
//
// A Meter should be scoped at most to a single package. The name needs to
// be unique so it does not collide with other names used by
// an application, nor other applications. To achieve this, the import path
// of the instrumentation package is recommended to be used as name.
//
// If the name is empty, then an implementation defined default name will
// be used instead.
Meter(name string, opts ...MeterOption) Meter
}
// Meter provides access to instrument instances for recording metrics.
//
// Warning: Methods may be added to this interface in minor releases. See
// package documentation on API implementation for information on how to set
// default behavior for unimplemented methods.
type Meter interface {
// Users of the interface can ignore this. This embedded type is only used
// by implementations of this interface. See the "API Implementations"
// section of the package documentation for more information.
embedded.Meter
// Int64Counter returns a new Int64Counter instrument identified by name
// and configured with options. The instrument is used to synchronously
// record increasing int64 measurements during a computational operation.
//
// The name needs to conform to the OpenTelemetry instrument name syntax.
// See the Instrument Name section of the package documentation for more
// information.
Int64Counter(name string, options ...Int64CounterOption) (Int64Counter, error)
// Int64UpDownCounter returns a new Int64UpDownCounter instrument
// identified by name and configured with options. The instrument is used
// to synchronously record int64 measurements during a computational
// operation.
//
// The name needs to conform to the OpenTelemetry instrument name syntax.
// See the Instrument Name section of the package documentation for more
// information.
Int64UpDownCounter(name string, options ...Int64UpDownCounterOption) (Int64UpDownCounter, error)
// Int64Histogram returns a new Int64Histogram instrument identified by
// name and configured with options. The instrument is used to
// synchronously record the distribution of int64 measurements during a
// computational operation.
//
// The name needs to conform to the OpenTelemetry instrument name syntax.
// See the Instrument Name section of the package documentation for more
// information.
Int64Histogram(name string, options ...Int64HistogramOption) (Int64Histogram, error)
// Int64Gauge returns a new Int64Gauge instrument identified by name and
// configured with options. The instrument is used to synchronously record
// instantaneous int64 measurements during a computational operation.
//
// The name needs to conform to the OpenTelemetry instrument name syntax.
// See the Instrument Name section of the package documentation for more
// information.
Int64Gauge(name string, options ...Int64GaugeOption) (Int64Gauge, error)
// Int64ObservableCounter returns a new Int64ObservableCounter identified
// by name and configured with options. The instrument is used to
// asynchronously record increasing int64 measurements once per a
// measurement collection cycle.
//
// Measurements for the returned instrument are made via a callback. Use
// the WithInt64Callback option to register the callback here, or use the
// RegisterCallback method of this Meter to register one later. See the
// Measurements section of the package documentation for more information.
//
// The name needs to conform to the OpenTelemetry instrument name syntax.
// See the Instrument Name section of the package documentation for more
// information.
Int64ObservableCounter(name string, options ...Int64ObservableCounterOption) (Int64ObservableCounter, error)
// Int64ObservableUpDownCounter returns a new Int64ObservableUpDownCounter
// instrument identified by name and configured with options. The
// instrument is used to asynchronously record int64 measurements once per
// a measurement collection cycle.
//
// Measurements for the returned instrument are made via a callback. Use
// the WithInt64Callback option to register the callback here, or use the
// RegisterCallback method of this Meter to register one later. See the
// Measurements section of the package documentation for more information.
//
// The name needs to conform to the OpenTelemetry instrument name syntax.
// See the Instrument Name section of the package documentation for more
// information.
Int64ObservableUpDownCounter(
name string,
options ...Int64ObservableUpDownCounterOption,
) (Int64ObservableUpDownCounter, error)
// Int64ObservableGauge returns a new Int64ObservableGauge instrument
// identified by name and configured with options. The instrument is used
// to asynchronously record instantaneous int64 measurements once per a
// measurement collection cycle.
//
// Measurements for the returned instrument are made via a callback. Use
// the WithInt64Callback option to register the callback here, or use the
// RegisterCallback method of this Meter to register one later. See the
// Measurements section of the package documentation for more information.
//
// The name needs to conform to the OpenTelemetry instrument name syntax.
// See the Instrument Name section of the package documentation for more
// information.
Int64ObservableGauge(name string, options ...Int64ObservableGaugeOption) (Int64ObservableGauge, error)
// Float64Counter returns a new Float64Counter instrument identified by
// name and configured with options. The instrument is used to
// synchronously record increasing float64 measurements during a
// computational operation.
//
// The name needs to conform to the OpenTelemetry instrument name syntax.
// See the Instrument Name section of the package documentation for more
// information.
Float64Counter(name string, options ...Float64CounterOption) (Float64Counter, error)
// Float64UpDownCounter returns a new Float64UpDownCounter instrument
// identified by name and configured with options. The instrument is used
// to synchronously record float64 measurements during a computational
// operation.
//
// The name needs to conform to the OpenTelemetry instrument name syntax.
// See the Instrument Name section of the package documentation for more
// information.
Float64UpDownCounter(name string, options ...Float64UpDownCounterOption) (Float64UpDownCounter, error)
// Float64Histogram returns a new Float64Histogram instrument identified by
// name and configured with options. The instrument is used to
// synchronously record the distribution of float64 measurements during a
// computational operation.
//
// The name needs to conform to the OpenTelemetry instrument name syntax.
// See the Instrument Name section of the package documentation for more
// information.
Float64Histogram(name string, options ...Float64HistogramOption) (Float64Histogram, error)
// Float64Gauge returns a new Float64Gauge instrument identified by name and
// configured with options. The instrument is used to synchronously record
// instantaneous float64 measurements during a computational operation.
//
// The name needs to conform to the OpenTelemetry instrument name syntax.
// See the Instrument Name section of the package documentation for more
// information.
Float64Gauge(name string, options ...Float64GaugeOption) (Float64Gauge, error)
// Float64ObservableCounter returns a new Float64ObservableCounter
// instrument identified by name and configured with options. The
// instrument is used to asynchronously record increasing float64
// measurements once per a measurement collection cycle.
//
// Measurements for the returned instrument are made via a callback. Use
// the WithFloat64Callback option to register the callback here, or use the
// RegisterCallback method of this Meter to register one later. See the
// Measurements section of the package documentation for more information.
//
// The name needs to conform to the OpenTelemetry instrument name syntax.
// See the Instrument Name section of the package documentation for more
// information.
Float64ObservableCounter(name string, options ...Float64ObservableCounterOption) (Float64ObservableCounter, error)
// Float64ObservableUpDownCounter returns a new
// Float64ObservableUpDownCounter instrument identified by name and
// configured with options. The instrument is used to asynchronously record
// float64 measurements once per a measurement collection cycle.
//
// Measurements for the returned instrument are made via a callback. Use
// the WithFloat64Callback option to register the callback here, or use the
// RegisterCallback method of this Meter to register one later. See the
// Measurements section of the package documentation for more information.
//
// The name needs to conform to the OpenTelemetry instrument name syntax.
// See the Instrument Name section of the package documentation for more
// information.
Float64ObservableUpDownCounter(
name string,
options ...Float64ObservableUpDownCounterOption,
) (Float64ObservableUpDownCounter, error)
// Float64ObservableGauge returns a new Float64ObservableGauge instrument
// identified by name and configured with options. The instrument is used
// to asynchronously record instantaneous float64 measurements once per a
// measurement collection cycle.
//
// Measurements for the returned instrument are made via a callback. Use
// the WithFloat64Callback option to register the callback here, or use the
// RegisterCallback method of this Meter to register one later. See the
// Measurements section of the package documentation for more information.
//
// The name needs to conform to the OpenTelemetry instrument name syntax.
// See the Instrument Name section of the package documentation for more
// information.
Float64ObservableGauge(name string, options ...Float64ObservableGaugeOption) (Float64ObservableGauge, error)
// RegisterCallback registers f to be called during the collection of a
// measurement cycle.
//
// If Unregister of the returned Registration is called, f needs to be
// unregistered and not called during collection.
//
// The instruments f is registered with are the only instruments that f may
// observe values for.
//
// If no instruments are passed, f should not be registered nor called
// during collection.
//
// The function f needs to be concurrent safe.
RegisterCallback(f Callback, instruments ...Observable) (Registration, error)
}
// Callback is a function registered with a Meter that makes observations for
// the set of instruments it is registered with. The Observer parameter is used
// to record measurement observations for these instruments.
//
// The function needs to complete in a finite amount of time and the deadline
// of the passed context is expected to be honored.
//
// The function needs to make unique observations across all registered
// Callbacks. Meaning, it should not report measurements for an instrument with
// the same attributes as another Callback will report.
//
// The function needs to be concurrent safe.
type Callback func(context.Context, Observer) error
// Observer records measurements for multiple instruments in a Callback.
//
// Warning: Methods may be added to this interface in minor releases. See
// package documentation on API implementation for information on how to set
// default behavior for unimplemented methods.
type Observer interface {
// Users of the interface can ignore this. This embedded type is only used
// by implementations of this interface. See the "API Implementations"
// section of the package documentation for more information.
embedded.Observer
// ObserveFloat64 records the float64 value for obsrv.
ObserveFloat64(obsrv Float64Observable, value float64, opts ...ObserveOption)
// ObserveInt64 records the int64 value for obsrv.
ObserveInt64(obsrv Int64Observable, value int64, opts ...ObserveOption)
}
// Registration is an token representing the unique registration of a callback
// for a set of instruments with a Meter.
//
// Warning: Methods may be added to this interface in minor releases. See
// package documentation on API implementation for information on how to set
// default behavior for unimplemented methods.
type Registration interface {
// Users of the interface can ignore this. This embedded type is only used
// by implementations of this interface. See the "API Implementations"
// section of the package documentation for more information.
embedded.Registration
// Unregister removes the callback registration from a Meter.
//
// This method needs to be idempotent and concurrent safe.
Unregister() error
}